The world's most classic quiz questions
1, there are two non-uniform distribution of incense, incense burn time is one hour, you can use any method to determine the period of 15 minutes?
2, a manager has three daughters, three daughters add up to the age of 13, three daughters together equal to the manager's age by their age, there is a subordinate manager has to know the age, but still not sure Manager of the age of three daughters, then manager, said that only a daughter's hair is black, then the subordinate managers know the age of three daughters. What are the age of three daughters how much? Why?
3, there are three people to stay in a hotel, housing three rooms, $ 10 for each room, so they pay the owner a total of $ 30, the next day, the boss think three-room only $ 25 is enough so called the little brother to return $ 5 to the three guests, who knows greedy brother, only to return $ 1 per person, 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 , coupled with a non-brother pocketed $ 2, a total of $ 29. However, three of them had to pay a total of $ 1 $ 30 then there is it?
4, two blind people, they each bought two pairs of black socks and two pairs of white socks, eight pairs of socks of the cloth, the same size, and each has a trademark on the socks of the paper with with. Two blind eight pairs of socks will not careful the mix. Each of them how to retrieve the black socks and white socks of two pairs of it?
5, there is a train speed of 15 kilometers per hour to leave Los Angeles went straight to New York, and the other a train speed of 20 kilometers per hour from New York bound for Los Angeles. If you have a bird, the speed of 30 km per hour and two trains start at the same time
paul smith rugs, from Los Angeles, hit another vehicle and returned, followed by flying back and forth in the two trains until the two trains meet, I ask, which a number of long-distance flying birds?
6, you have two jars, 50 red marbles, 50 blue marbles, randomly selected a jar, randomly select a ball into the jar, how to most red marbles Select the chance? In your plan, get the red ball exactly how much risk?
7, you have four cans loaded pills, pills each has a certain weight, is not contaminated contaminated pills weight +1 weighing only once, how to determine which jar the drug was contaminated?
8, you have a bucket of jelly
burberry cap, which are yellow, green, red three, close your eyes, grab two of the same color jelly. Crawl you can determine how many there must be two of the same color jelly?
9, for a group of numbers from 1 to 100, all the switches up (on) lights for the following *: all a multiple of one switch allocated the opposite direction; 2 the opposite direction and allocated in multiples of one switch; 3 multiple of the opposite direction and call a switch ... ... Q: Finally, for the shut-off state of the lamp number.
10, imagine you are in front of the mirror, I ask
paul smith outlet online, why is the mirror image can be reversed or so, but not upside down?
11, a group of people dance, and each head wearing a hat. Only black and white hat, black with at least one. Everyone can see the other person's hat color, but can not see their own. Host let us look at the-what other people wearing hats, and then turn off the lights, if some people think that their wearing a black hat, slap yourself a slap in the face. First turn off the lights, no sound. Then turn on the lights again, we look again, turn off the lights were still silent. Until the third turn off the lights, have a pat slapping voice sounded. Asked how many people wearing the black hat?
12, two rings, the radius is 1 and 2, respectively, small round circle around the circumference of the circle within a week, small round their turn to ask a few weeks? If the external circle, small round turn itself a few weeks it?
13,1 dollars 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?
