智力问答Mind Quiz.docx

1、智力问答Mind Quiz智力问答（Mind Quiz）智力问答(Mind Quiz) The first part begins with the topic: There are two uneven distribution of incense, incense burning time is an hour, you can use what method to determine a period of 15 minutes? A manager has three daughters, three daughters age add up to 13, the three dau

2、ghters of the age by up to manager of their age, there is a subordinate already know the managers age, but still can not determine the manager of the three daughters of the age, the manager said that only a daughters hair is black then, the subordinate knew the manager three daughters age. Whats the

3、 age of the three daughters, please? Why? There are three people to go to a hotel, living room, each room $10 yuan, so they paid a total of second days, $30 boss, the boss think three only need $25 yuan is enough so that I returned to $5 to three guests, who knows I greedy, only to return each $1, h

4、e secretly took $2, like this that is the three guests each spent nine yuan, so three people spent a total of $27, plus the boy pocketed $2, a total of $29. But when three of them paid $30, what about $1? There are two blind men, they each bought two pairs of black socks and two pairs of white cloth

5、, the size of the eight pairs of socks are identical, and each pair of socks have a label attached to. The two blind men accidentally mixed the eight pairs of socks together. Each of them how to retrieve the black socks and white socks for two? A train leaves Losangeles at the speed of 15 kilometers

6、 per hour, heading for New York, another train from New York to Losangeles at 20 kilometers per hour. If a bird, starting at 30 kilometres per hour and two train at the same time, starting from Losangeles, met another car back, turn in the two car train flew back and forth, until the two train meet,

7、 excuse me, this bird fly a long distance? You have two cans, 50 red marbles, 50 blue marbles, a random selection of a jar, a random selection of a marble into the jar, how to give the red marble the biggest choice? What is the exact chance of getting the red ball in your plan? You have four jars co

8、ntaining pills. Each pill has a certain weight. The contaminated pills are not contaminated by weight + 1. weighing once. How do you decide which pots medicine is contaminated? You have a barrel of jelly, in which there are three kinds of yellow, green and red. Close your eyes and grab two kinds of

9、jelly of the same color. Grab just a few to make sure you have two jelly of the same color A group of numbered 1 to 100, all switch upward (open) the light of the following operations: all reverse direction 1 multiples of a dial switch; the opposite direction in multiples of 2 and a dial switch; the

10、 opposite direction in multiples of 3 and a dial switch. Q: number of lights that are finally turned off. Imagine yourself in front of the mirror. Ask why the mirror image can be turned upside down, but it cant be turned upside down A group of people were having a ball, each wearing a hat on their h

11、eads. Hats are only black and white, two, black at least one. Everyone can see the color of other peoples hats, but can not see their own. The host will let you see what others wear on their heads, and then turn off the lights. If someone thinks he is wearing a black hat, he will slap himself in the

12、 face. Turn off the lights for the first time, no sound. Then you see it again, turn on the lights, turn off the lights when still in perfect silence. Until the third time to turn off the lights, only the voice sounded pat slapping. How many people are wearing black hats? The two rings, with radii o

13、f 1 and 2, are rounded in the big circle, round Monday, and the small circle itself turns for a few weeks If its outside the big circle, the small circle itself turns for a few weeks If every 3 empty beer bottles can change a bottle of beer and someone buys 10 bottles of beer, how many bottles of be

14、er can he drink at most? Answer: Incense a light a head, incense B lit both ends. When the incense B finished, the time passed 30 minutes. The other end of the incense A is also lit. From then on, the a burns 15 minutes. The age of three women should be 2, 2, 9. Because only one child has dark hair,

15、 that is, only she grew up, and the other two are still less than 3 years old, and their hair is light colored. The age of the manager should be at least greater than 25. Typical concept. In fact, 3 people only paid 27 yuan, the boss got 25 yuan, the younger brother took 2 yuan. Separate each pair o

16、f socks, one by one. The length of the railway between Losangeles and New York is A kilometers. Then the two trains arrive at the meeting, with A/ (15+20) hours, that is, the time of the birds flight. So the bird flying distance is speed * time =30 * A/35=6/7 of Losangeles to New York railway chief.

17、 The odds of 1/2. First select the ball in the jar. In this way, the jar has no effect on the color of the ball. 1 cans take 1 pills, 2 cans take 2 pills, 3 cans take 3 pills, 4 cans take 4 pills, weigh the 10 pills, than the normal weight, a few is what number of cans of medicine, there is a proble

18、m. 4. Quantity color type. The colors must repeat. There are 10 lights for extinction, 1, 4, 9, 16, 25, 36, 49, 100, 64, 81, and no. Because each prime number can be divided by 1 and itself, the prime number is bright. A number can be divisible by the number of N, N must be an even number. For a num

19、ber of non square numbers, will be N switch is a lamp, reserved for light; for a square number listed above, only by the switch N-1, so the light is off. The axis of mirror symmetry is the center of the human axis There are three people in black hats. Suppose there are N people wearing black, when N

20、=1, wearing black to see everyone else for sure his black Atractylodes will be able to. So there should be a sound when you turn off the lights for the first time. N1 can be concluded. For every black man, he can see the N-1 top black hat and assume itself white. But after N-1 times nobody hits hims

21、elf, every black man knows hes black. So, the first time N lights off, there are N individuals playing their own. Turn the two circles in small circles, both inside and outside. After 10 bottles, 9 empty bottles are exchanged for 3 bottles of beer (4 empty bottles after drinking), and the three bott

22、les can be changed to 1 bottles of beer (2 empty bottles after drinking) At this time he had 2 empty bottles, and if he could borrow an empty bottle from his boss first, he would get enough of the 3 empty bottles to change to a bottle of beer, and then empty the bottle back to the boss when he finis

23、hed it. So he can drink 10+3+1+1=15 bottles at most The second part begins with the topic: Puzzle 1 (pirate gold coin) - Pirate gold coin The 5 pirates grabbed 100 gold coin, discussed how to make a fair allocation. They agreed on the principle of distribution: (1) draw lots to determine the order n

24、umber of each persons allocation (1, 2, 3, 4, 5); (2) the distribution scheme was put forward by the pirate who signed to No. 1, and then the 5 voted, if the scheme received more than half of the people agreed, according to his plan to assign, otherwise 1 will be thrown into the sea to feed sharks;

25、(3) if the number 1 was thrown into the sea, by the 2 proposed allocation scheme, then the remaining 4 vote, if and only if more than half of the people agree, will be distributed according to his proposal, otherwise it will be thrown into the sea; (4) and so on. It is assumed that every pirate is e

26、xtremely clever and rational, they are able to carry out rigorous logic, and can judge their own gains and losses, which can get the most gold in his life under the premise. Also assume that each round of voting after the results can be successfully implemented, then pumped to the No. 1 pirates shou

27、ld put forward to how to make their own allocation scheme not only were thrown into the sea, but also can get more gold? Puzzle 2 (guessing question) Mr. S, Mr. P, Mr. Q, they know there are 16 cards on the table drawer: the A, Q, 4, 8, 4, the J 2, 7, 3, 5, Q, K Flower 4, 6 block A, 5. Professor Joh

28、n picked out a card from the 16 cards and told Mr. P the number of the cards, and told Mr. Q about the color of the card. At this time, Professor John asked Mr. P and Mr. Q: you can infer this card or a suit from a known point is what brand? Therefore， Mr. S hears the following dialogue: Mr. P: I do

29、nt know this card. Mr. Q: I know you dont know this card. Mr. P: now I know the card. Mr. Q: I see. After listening to the dialogue above, Mr. S thought, the right to launch this card is what brand. Excuse me: what brand is this card? Puzzle 3 (burning rope problem) It takes a total of 1 hours to bu

30、rn an uneven rope from scratch to the end. Now that there are several ropes of the same material, ask how to use the rope method to clock for one hour and fifteen minutes Puzzle 4 (table tennis problem) Suppose there are 100 table tennis balls, and two people take turns to carry the ball into the po

31、cket, and the 100th table tennis players can be won. The condition is: take the ball at least 1, but not more than 5, ask: if you are the first to take the ball, you should take a few? How can you guarantee that you can get 100th table tennis balls? Puzzle 5 1 yuan a bottle of soda, after drinking t

32、wo empty bottles for a bottle of soda, asked: you have 20 yuan, can drink up to a few bottles of soda? Puzzle 6 (split gold bars) You let the workers work for you for 7 days, and the return to the worker is a gold bar. Gold is divided into 7 connected pieces. You must give them a piece of gold at the end of the day, if you are only allowed to make two breaks in the gold bar, how do you pay your worker? 7 puzzles (GUI test only) Bin, pangjuan is energy-saving; one day the ghost out of this question: he chose two different integer from 2 to 99