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Reprinted from alumni of the user at 22:24 on September 11, 2010 Reading (loading. ..) Comments (0) Category: Bearing in mind the first turn, the time to do again!
【1】 Suppose there is a pond, there are an infinite number of water. There are 2 empty water bottles, the volume of 5 liters and 6 liters. The question is how these two water bottles with only a pond made from 3 liters of water.
【2】 Yu Wen Zhou Lin's mother was a cement plant laboratory technician. One day, Zhou Wen came to the laboratory homework. Dont go out for fun. You can move only one glass, handy cup filled with water and empty cups intervals up to it? did. Please think about it, Mike's hit rate is 30%, small yellow better than him, the hit rate is 50%, the best is Kobayashi gunmen, he never mistakes, hit rate is 100%. Because of this obvious fact, in fairness, they decided in this order: Li shoot first, small yellow second, Kobayashi last. Then the cycle, until they left the next person. Then the three people who survived the best chance it? They should take what kind of strategy?
【4】 detained in a prison room, the two prisoners. To this day, his cell prison will provide a can of soup, so that these prisoners themselves points. At first, the two men are often in dispute, because they always think the other people than their more soup. Then they found a way out: a people sharing soup, let another person before the election. So to solve the dispute on such. But now this prison room and add to the mix a new prisoner, is now three to points soup. Must find a new way to keep the peace between them. How to do it?
by: psychological problems, not a logical problem
【5】 rectangular table in a place the size of the n-round coins. Some of these coins may not entirely within the desktop, but also there may be some overlap; when more and it put a coin in the center of the desktop, the new coins will put some coins will overlap with the original. Prove that the entire desktop can be completely covered with a coin 4n
【6】 a ball,
readme, a ball diameter is approximately the length of 2 / 3 the length of the ruler. How do you measure the radius of the ball? There are many ways to see who's tricky
【7】 five of the same size one yuan coins. Asked the two two-phase access, how should I put?
【8】 guess Mr. licensing issues
S, P, Mr., Q Mr. desk drawer, they know there are 16 playing cards: hearts A,
エアマックス90, Q, 4 spades J, 8,4, 2,7,3 flower K, Q, 5,4,6 box A, 5. Professor John from 16 cards to pick out a card and this card points to tell Mr. P, the Q card in the suit told the President. At this time, Professor John asked Mr. P, Mr. Q: Do you or a suit from the known number of points to infer what this card is the card it? Thus, S heard the following conversation, Mr.: P: I do not know this card.
Q: I know you do not know this card. Mr.
P: Now I know this card.
Q: I understand it.
After listening to the dialogue above, S President thought for a moment after the launch of this card to correct what card.
ask: What is a license card?
【9】 professor a professor of logic, there are three students, and three students are very intelligent!
professors to give them a day out of a question, professor at the forehead of each person posted a note and tell them that each of the note written on a positive integer, and a number equal to the first two three! (Everyone can see the other two numbers, but can not see their own)
professor asks the first student: Can you guess my number? Answer: No, ask the second, not third, can not, ask first, not second, not the third: I guess, is 144! Professor very satisfied smile. Will you guess the other two people count?
【10】 occurred in a city hit-run incident
a car in the city the car is only two colors, blue, green 15% 85%
time of the incident a man at the scene saw the
He testified that blue car
However, according to experts in the field analysis, was able to see the right kind of conditions is 80%
possibility, then, the car is a blue car accident probability in the end how much?
【11 Under any one of 240 kg of water, transported to arid areas he wants to make money. He carried up to 60 kilograms each and every one kilometer ahead to be 1 kg of water (even water). Assuming the starting price of water for 0, then, is proportional to transport distance, (ie, 10 kilometers to 10 yuan / kg, at 20 km to 20 yuan / kg, and assuming he ......), must be safe to return, I ask, how much he up to?
【12】 now a total of 100 hp with 100 stones, MA 3 hours, a large horse; medium-sized horse with a small horse. Malaysia time to pack them a three stone, you can pack two medium-sized horse, but can pack a small horse two stone. Q. How many horses Malaysia and medium-sized horse with ponies? (The key is just to be out of 100 horses)
【13】 1 = 5 2 = 15 3 = 2154 = 2145 then 5 =?
【14】 has 2n individual line for a movie, tickets price is 50 cents. Among individuals in this 2n, where n is only 50 cents a person, other n individuals have $ 1 (paper ticket). When cinema began selling tickets foolish not 1 cent.
Q: How many kinds of queuing method of making a $ 1 every time a ticket, the cinema has 50 cents give change
Note:
1 U.S. dollar = 100 cents
people who have $ 1 , with the notes, can not break into two
【15】 50 cents a person to spend money to buy a chicken for 8, 9 dollars sold, and then he feels is not worth spending 10 bucks bought back, 11 sold to someone else. Asked how much he earned?
【16】 There is a sports competition with a total of M items, with players A, B, C to participate in each project, the first, second and third respectively in the X, Y, Z points, including X, Y, Z are positive integers and X> Y> Z. Finally, 22 points A, B and C are 9 points, B won the first race in meters. Find the value of M, and asked who was in second place in the high jump. 【17】
premise:
1 has five houses in five colors
2 nationality of each owner of the house are different
3 each of the five men drink a drink , only smoke a brand of cigarettes, only to keep a pet
4 did not have the same pet, smoke the same brand of cigarettes, drink the same beverage
Tip:
1 Englishman living in the red house
2 Swedes kept in a dog
3 Danes
4 green tea house in the white house on the left
5 green house owner drinks coffee
6 pumping PALL MALL who raised tobacco yellow house, a bird owner
7 pumping DUNHILL cigarette
8 living in the middle of that house people who drink milk
9 The Norwegian lives in the first house
10 pumping mix of people who live in raising tobacco Cat people who live next to
11 horses who smoke in the next pumping DUNHILL
12 who smoke pumping BLUE MASTER
13 Germans drink beer smoke
14 pumping PRINCE Norwegian lives in the blue house pumping next
15 neighbors who smoke mixed drink mineral water
question is: Who is fish? ? ?
【18】 5 people from different places to live in different houses, raise different animals, different brands of cigarette smoking, drink a beverage, like different foods. According to the following leads to determine who is a cat person.
1. Red House in the blue house on the right, white house on the left (not necessarily adjacent)
2. Wong from Hong Kong owner of the house, and his house is not the left.
3. Eat pizza man who lived in next door to drink mineral water.
4. Maotai people drink from Beijing living in Shanghai, people from next door.
5. Cigarette smoking Hilton who live right next door in the horse.
6. Beer drinkers who love to eat chicken.
7. Green house people dogs.
8. People who love to eat noodles who lived next door to the snake.
9. People from the neighborhood of Tianjin (near) a love beef, and the other from Chengdu.
10. Fish live in the far right of the house.
11. Smoking Marlboro cigarettes, people who live in smoking and smoking cigarettes Hilton Red House who Aihe Cha.
13. Wine drinkers live in people who eat tofu right next door.
14. Hongtashan cigarette smoking person is not living in smoke Kent cigarettes next to a person, not with people from neighboring Shanghai.
15. From the left Shanghai the number of people living in the second house.
16. Drink mineral water, live in the middle of the house.
17. People who love to eat noodles drink wine.
18. Smoke, , 6,5,5,3,3,3,
ナイキ エアマックス,3,7,7,7,7
the hands of a licensed permanent king, Wang, 2, A, K, Q, J, 10, Q, J, 10,9,8,5,5,4,4
the hands of permanent license B 2,2, A, A, A, K, K, Q, J, 10,9,9,8,6,6, 4,4
three are dummy, know each other cards. Asked is: do not have the wrong card in the three cases, the landlord must either lose or win.
Q: Which party will win? 【20】
the first floor to the tenth floor of each elevator door is placed a diamond, diamond sizes. You take the elevator to the tenth floor from the first floor, each floor elevator door will open once, only to get a diamond, and asked how to get the biggest one? 【21】 U2
choir have arrived in 17 minutes concert venue, the way must cross a bridge, four starting from the same end of the bridge, you have to help them reach the other side, the sky was dark, and they only a flashlight. Up to two people at once with the bridge, and must hold a flashlight when the bridge, so have to bring someone to bring the flashlight back and forth across the bridge. Flashlight is not the way with a lost pass. Four different walking speeds, if two peers who Zeyi slower rate shall prevail. Bono needs to spend 1 minute crossing the bridge, Edge need to spend 2 minutes across the bridge, Adam need to spend 5 minutes across the bridge, Larry need to spend 10 minutes to cross the bridge. How do they cross the bridge in 17 minutes it? 【22】
a family with two children, one of which is the girl, the girl asked the other is the probability of
(assuming the same probability of a boy or woman)
【23】 Why are manhole covers are round it?
【24】 7 grams, 2 grams each in weight, a balance, and how only three of these items will be divided into 140 grams of salt each, 50,90 g? 【25】
chip test: a 2k chip, known good chips and more chips than bad. Please design algorithm to find a
from which a good chip, that you limit the number of comparisons used.
which: good chips and other chips when compared to correctly give the other a chip is good or bad.
bad when compared to chips and other chips will be given random good or bad.
【26】 saying twelve eggs, one is bad (the rest of the egg weight and different), now require the balance, said three times, which said the eggs are bad! 【27】
100 people to answer five questions, 81 people answer the first question, 91 correct answers the second question, 85 people answer the third question, 79 people answer the fourth question, 74 people answer the fifth question, answer Three questions or three questions count more than people pass, then the 100 people, at least () were passed. 【28】
Eason and a song called Decade
Lu Shan and a song called 3650 that is now asked
night, ten years may be how many days?
【29】
1
1 1
2 1
1 2 1 1
1 1 1 2 2 1
what the next line? 【30】
uneven burning a rope to spend an hour, how to use it to determine the half an hour?
uneven burning a rope burn from the beginning end total of 1 hour. There are certain sections of the same material the rope, and asked how to approach the rope burn time one hour fifteen minutes to do? (Microsoft's document questions)
【31】 total of three drugs, were re-1g, 2g, 3g, into a number of bottles, each bottle is now able to determine only one drug, and the bottle of pills in sufficient number, can be called only once to know the various types of bottles are Sheng medicine?
4 medicines if it? 5 classes? N class it (N may be a few)?
If it is a total of n m a bottle container of medicines then (m, n are positive integers, the quality of drugs vary but the quality of a variety of drugs known)? You can only call once to know the medicine bottle is?
Note: There is certainly a cost, said the medicine that we do not have a
【32】 assuming the table has three sealed boxes, one box has two silver coins (1 coin = 10 pence), a box in two nickel (1 nickel = 5 pennies), and a box with a silver and a nickel. The boxes were marked 10 pence, 15 pence and 20 pence, but each label is wrong. Allows you to take from a box on the box before a coin to see the coin, can you tell contents of each box things? 【33】
a big watermelon, with a fruit knife to cut flat, cut a total of 9 knives, cut the number of copies up to at least the number of copies can be cut?
process is mainly the result is not the most important 【34】
a large circular pool, surrounded by rat holes. Cat chasing mice to the pool edge, the mouse hole is not too late to fall into the pool. Cats continue to attempt to catch mouse along the edge of the pool (the cat would not join the water). Known mouse V cat = 4V. Q. Is there a way to get rid mouse chase the cat?
【35】 There are three buckets, two large 8 kg of water can be installed, a small, 3 pounds of water can be installed,
エアマックス, and now has 16 pounds of water barrel is filled with 8 kg two barrels, kegs empty forward, how to put 16 pounds of water to the four individuals, each of 4 kg. No other tool, 4, who own the container, sub out of the water no longer want to come back. 【36】
There was once an old watchmaker, as a church mounted a large bell. His old age vertigo, the length of the needle assembly is wrong, short needles are long gone but the speed of the needle 12 times. Assembly time is 6:00, he means the short pin Installed on the old watchmaker went home. People look at this clock for a while 7:00, after a short time to 8:00, and were surprised, immediately went to the old watchmaker. Arrived at the old watchmaker, already 19:00 o'clock. He drew his watch to a pair of clock accuracy, suspicious people intentionally make fun of him, an angry and went away. This clock is 8, 9 ran, people look for watchmaker. Old watchmaker 8:00 the next day came more than a pair with the table is still accurate. If you think about the old watchmaker for the first time when the table is a 7:00 a bit? The second table is 8 bit? 【37】
now have 2 horses, 3 cows and 4 sheep, they are dissatisfied with their total of 10,000 paper money (currency in ancient times). If the two horses with a cow, or 3 cows with a sheep, or 4 sheep with a horse, they are exactly the respective total of 10,000 paper money. Q: horses, cattle,
nike air max, sheep unit is the number of paper money? 【38】
day, harlan shop to a customer, picked a 25 yuan of goods, the customer took out 100 yuan, harlan no change can not change to white flight to the shop next door to 100 for this into a change, come back to customers looking for 75 Yuan. After a while, flying white came harlan, said earlier that the ######## money, harlan right to fly the white sheets for the real money, and asked how much money lost harlan? 【39】
monkey rope climbing
strange question at first glance this road is very simple mechanics, but it is said to Lewis. Carol confused. As for the question whether the road
the blame for In short, in an unlucky moment, he consulted it on the following issues:
a rope through the pulley without friction in one end hang a 10 pound weight, the rope on the other end
a monkey, exactly the same weight balance. When the monkeys began to climb, the weights will be how to move it?
Price weights
code that will rise, but faster. Clifton (and Harcourt) is that the weight will be the speed with monkeys
rises up,
DNF Fool 's Love, but Sampson said, would be to drop weight! The mechanical engineer said, However, monkeys have tails
obtained from the square root. Seriously, This question is very interesting project, worthy of serious scrutiny. It is interesting to note problems with the mechanics of the close ties between
. 【40】
two hollow spheres, the size and weight of the same, but different materials. One is gold, one is lead. Hollow spheres have the same color map the surface of the paint. Now requires the surface of the paint without destroying the conditions which use the simple method that is gold, which is the lead.
【41】 23 coins on the table, 10 face up. Suppose a blind people, and not your hand Youmo coin
face anyway. The best way to let you use these coins into two piles, each pile face up the same number of coins. 【42】
three villages A, B, C, and three towns A, B, C is located within the crater as shown.
due to historical reasons, the only village of the same name and only travel between the towns. To facilitate transport, they
for railways. The question is: how to repair the craters in the three railways connecting with the A town A village,
B Village and Town B, C and C Town Village. These railways intersect each other can not. (Dig the cave, repair Interchange
bridge, not, absolutely plane problem). Think about this question come up with the answer and then explain what it is.
● ● ● ● ● ● ● ● ● C ● ● ● ● ● ● ● ● ● ●
● ; ●
● ●
● ; ; ●
● ●
● ; ; ●
● ●
A C B
● ; ● ●
● ; ● ●
● ; ● ●
● ● ●
● ; ● ●
● ● ●
● ; ● ●
● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● ● 43】 house, three lights, and outside the three switches, one switch controls only one light, and outside the room can not see into the house only once
how to know which switch controls which light?
four it ~
【44】 2 +7-2 +7 all have a match root form, move any one of them, the answer called for 30
Description: Since writing the following interpretation issues, 2 is composed of three horizontal cross-fold, 7 fold by the two horizontal components
【45】 5 Pirates grab a cache of 100 gold, and intended to divide the spoils of war. This is some talk about democracy, pirates (of course, their own unique democracy), their habits
is allocated in the following way: the most powerful distribution plan proposed by a pirate, and then all the pirates (including
proposed program, including himself) to vote on this program. If 50% or more of the pirates agreed to this plan, the party
was adopted and accordingly the case of distribution of spoils of war. Otherwise, a proposal will be thrown into the sea of pirates, and then the next most powerful pirate a
repeated the process.
all pirates are happy to see one of their associates were thrown into the sea, but if they choose
, they still would rather have a cash. They certainly do not want that they have been thrown overboard. All the pirates are
are rational and know the other pirates are rational. In addition, no two pirates are equally powerful
- and entirely in accordance with these pirates to the next level on a good row seating, and everyone is aware that he himself and his
all levels. The Nuggets can not be divided, but also allowed a total of several pirates gold, pirates
do not believe that any of his associates will share nuggets to comply with the arrangements. This is a group only for their intended per person
Pirates of the sea.
most vicious a pirate what should be proposed distribution plan to make him get the most gold? 【46】
who of them the biggest chance of survival?
5 prisoners, respectively, by 1-5 in sacks with 100 arrested mung bean, the provisions of grasping at least one person, and grasp the most and the least will be executed, and, between them can not exchange, but in the grasp, they can work out the number of the remaining beans. Who asked them the biggest chance of survival? Tip:
1, they are all very smart people
2, their principle is to seek life-saving, and go without many teeth are killing
3,100 points finish
4, if repeated the case, also considered the maximum or minimum, to be executed
【47】 5 monkeys on the beach found a pile of peaches, decided to split the next day. The next morning, the first monkeys first came, it left points separated the right points to a throw toward the sea, just can be divided into 5 copies, it takes a walk on their own. No. 2,3,4,5 monkeys also encountered the same problem, using the same way, are thrown away after one, just can be divided into five copies. ask this pile of peaches at least how many? 【48】 saying
pirate ship one day be the world drop down to hit a cow, 5 bad guy had to flee to an island, that island alone, and fortunately there are trees coconut trees There are a monkey!
we all picked the coconut together, but the day was late, so I go to bed first.
night a guy got up quietly, quietly divided into 5 copies of the coconut, the results found that more than a coconut, easily give the lucky monkey, and then quietly hidden one, and then mixed with the rest of the coconut back in place, it still drops back to sleep quietly.
After a while Another guy got up quietly, quietly into the remaining coconut 5 The findings are one more coconut, snatch the monkeys gave the lucky, and then quietly drop a hidden, mixed in with the rest of the coconut put back together, finally drop back to sleep quietly.
and after a while ...
...
and after a while ...
short five guys getting up, have done the same thing
morning everyone got up, their dismal sub-coconut, this is not an ordinary monkey really lucky, because this time the coconut is actually divided into more than 5 minutes after a coconut, but to gave it.
question is, this pile of coconuts at least how many?
【49】 Xiao Ming and Zhang Xiaoqiang are students, Zhang birthday is on N at M,
2 people are aware of Zhang's birthday is the day of the following 10 groups,
Zhang told the M value, Xiaoming, the N value tells the small strong,
Zhang teacher asked them know what day his birthday it?
3 月 4 日 March 5 March 8 月 4 日
6 June 7 月 1 日
9 September 5 月 1 日
12 December 2 December 8
Little said: If I do not know it, Johnny certainly do not know
Xiaoqiang said: I had no idea, but now I know
Little said: Oh, I know the
inferred according to the above dialogue, the teacher's birthday is the day Zhang
【50】 strayed into a village of a logician, imprisoned in the prison, the chief wanting to release, he logicians, said: Today there are two, one for freedom, one is dead, you can open an arbitrary. now choose from one of two soldiers responsible for answering any questions you have mentioned (Y / N), one of the honest nature, one lying by nature, life and death for you to choose the future. How to ask questions logician?
【51】 said before, ah, there is a rich man, he has 30 children, of whom 15 were born to the late ex-wife, the rest room is the second born in 15, after which a woman wanted to let her his eldest son born to inherit property, so one day he said to him: Our 30 children arranged in a circle, from one of several of them, let the children every 10 points out, which until the last remaining children, which child will inherit your property now! thought I rely on, the meaning of the questions quite content, and good, though to be fair, we had better do ~ However, when tick the ongoing process of going down, the rich dumbfounded, he found that knocking out the first 14 children are his former wife, and the next thing to be removed by his former wife, the rich soon big hand wave, stop, go back now from the number of children, second wife, a stepmother is like the deceitful, the countdown to the countdown , my son was still no match for the 15 you a ah ~ she immediately agreed to the motion of the rich, guess, in the end who did it ~
successor 【52】 ate the grass; cattle 23, 9 days and ate the grass. If cattle 21, then a few days and ate grass pasture can it? and pasture grass is constantly growing. 【53】 a businessman riding a donkey to cross the 1,
Luliang Fangshan - Qzone log,000 km-long desert to sell 3000 carrots. Known one can pack 1,000 donkeys carrots, but also for every one kilometer to go eat a carrot. Q: How many merchants sold a total of carrots?
【54】 10 box of gold, each box 100, each have one or two
corrupt officials to a boxes of each block wore off, please call one of a money
less than the amount found in that box
【55】 you allow workers to work for you 7 days to give the workers a piece of gold. Ping into gold bars connected, paragraph 7, you must have paid at the end of the day, if you are only allowed twice broke the gold bar, how do you pay for your workers?
【56】 ten bottle of medicine, are equipped with 100 tablets per bottle in the medicine (as if now installed one hundred less, are the ten twenty, whatever, let's come on so), which bottle of medicine for every eight piece weighing 10 grams, and another two bottles in the drug per tablet weighs 9 grams. Very accurate with a small scale, only called once, how to find the lighter weight of the two bottles? 【57】
a manager has three daughters, three daughters, ages add up to 13, up by three daughters, ages equal to their age manager, a subordinate manager is aware of the age, but still can not determine the manager of the three daughter's age, then the manager said only one daughter's hair is black, then the manager will know that under the age of three daughters. What are the age of three daughters how much? Why? 【58】
three people go to a hotel, housing three rooms, each room $ 10, so they paid a total of $ 30 for the boss, the next day, the boss felt three-room only $ 25 is enough so called brother return $ 5 to three guests, who knows greedy brother, only to return each $ 1 that he secretly took $ 2, so that would mean that each of the three guests to spend nine million, then spent a total of three $ 27, and then coupled with the non-brother pocketed $ 2, a total of $ 29. However, three of them had to pay $ 30 then there are a total of $ 1 it? 【59】
two blind, they each bought two pairs of black socks and two pairs of socks, eight pairs of socks a cloth quality, same size, and each has a trademark on the socks of the paper attached. The two blind accidentally mixed with eight pairs of socks out. How can each of them to retrieve the black socks and two pairs of socks it? 【60】
have a train speed of 15 kilometers an hour out of Los Angeles went straight to New York, the other a train speed of 20 kilometers per hour from New York bound for Los Angeles. If there is a bird, the speed of 30 km per hour and two trains start at the same time, from Los Angeles, hit another car and returned, followed by flying back and forth in the two trains until the two trains meet, I ask that many long-distance bird flight?
【61】 You have two jars, 50 red marbles and 50 blue marbles A jar randomly selected, randomly selected out of a marble into the jar, how to select the most red marbles opportunities? In your plan, get the red ball accurately the odds?
【62】 pills you have four cans installed, each has a certain weight, pills, pills are not contaminated by pollution, the weight +1. Weighing only once, how to determine which jar is contaminated medicine ? 【63】
batch of numbers from 1 to 100, all the switches facing up (open) the lights for the following *: Those who call the opposite direction in multiples of 1, the first switch; 2 times the opposite direction and allocation of time switch; 3 allocated in multiples of the opposite direction and a switch ... ... Q: Finally, the lights to shut off the state's number. 【64】
imagine you in the mirror, I ask, why is the mirror image can be reversed or so, but not upside down? 【65】
a party a group of people, each wearing a hat on their heads. Only black and white hat, black with at least one. Everyone can see other people hat color, but can not see their own. Host let us look at other people wearing the Shiyao hat, and then turn off the lights, If anyone thinks himself wearing a black hat, slap yourself across the face. First turn off the lights, no sound. Then turn on the lights again, we see it again, turn off the lights were still silent. Until the third turn off the lights, have a slapping sound of crackling sounds. Q. How many people wearing black hats? 【66】
two rings, the radius is 1 and 2, respectively, small round circle in the circle around the circumference within the week, small round their turn to ask for a few weeks? If the outer circle, small round weeks it's own switch? 【67】
1 yuan a bottle of soft drink, after drinking two bottles for a bottle of soda, and asked: Do you have 20 dollars, up to drink a few bottles of soft drinks? 【68】
3 red cap, four black hat, white hat 5. To 10 people from low to high station into a team and give them every man wore a hat. Everyone can not see the color of his hat, but can only see those people standing in front of the hat color. (So the last person can see the head in front of the hat color-9, while the top hat that person who can not see. Now start from the last man, asked him if he knew his hat color, and if he said do not know, to continue to ask the man in front of him. Assuming the front will certainly know the man wearing a black hat. Why?
【69】 assumptions lined 100 table tennis, the ball turns into by two people pockets, they will get the first 100 people in table tennis winner. conditions are: each had at least bring a ball, but a maximum of 5, Q: If you are the first to the ball, you the want some? the future, how you can take to ensure you get the first 100 table tennis?
【70】 Professor Lu Mu said: mathematical problems. One of my neighbors, there is a goat, weight 54 pounds, it has good lord it over several quarters in the nearby mountains. was a good thing that the introduction of a new goat, a 3 weight than it should pounds. the beginning, they live in peace, in harmony with each other. But one day, less steep mountain goat standing on top, and jumped to its competitors, it stood on the mound to meet the challenges opponents , while the challenger clearly has a commanding advantage. Unfortunately, the violent collision of the two goats were laid to the dead.
now to talk about the wonders of the question. on goat rearing has studied, has written the book George. Abercrombie said: who know the wine shop only two scoop spoon, ladle 7, respectively, two and 11 to two wine, but insisted his boss to sell two wine 2. Smart boss unambiguous, with the spoon in the jar in the two scoop wine and shuffling back and forth, the two actually measure out the 2 wine, the wise can you do?
【72】 known: there is only one tank for each aircraft, refueling aircraft can be shared between (note that each other, there is no refueling) for a tank of fuel to fly a plane half-circle around the earth, the question: To make a circle around the Earth at least a plane back to the airport take-off, at least a few planes out? (all aircraft from the same airport, and must safely return to the airport, does not allow half-way landing, with no airport)
】 【73 points in nine straight draw 10, requires each of at least three points on a straight line?
【74】
a fork in the road and lying, respectively, the country leading to an honest country. to the two people known to one is an honest country, the other is lying country. honest country always tell the truth, never lie, lie the country. Now you're going to lie to the country, but do not know which way to turn, need to ask the two men. I ask how should ask?
【75】 24 hours into the day, the clock's hour hand, minute and second hands complete coincidence together on several occasions when? What were all the time? How do you come from?
meantime Pluto plods according in one orbit namely takes centuries ...
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