Puzzle questions and answers that make you smarter the more you play

Playing puzzles often can make you smarter the more you play. Below I have compiled some puzzles for you that will make you smarter as you play them. You are welcome to refer to and learn from them.

Classic puzzles that make you smarter the more you play

1. The smart Ji Xiaolan: One day, Qianlong wanted to tease Ji Xiaolan and asked him to answer two questions question. The first question is: How many people come in and out of each of Beijing's nine gates every day? The second question is: How many people are born and die in the Qing Dynasty in a year?

Ji Xiaolan answered: The first question,? Two people , that is, men and women?. The second question,? One person is born and twelve people die in a year. ?Qianlong thought for a while and had nothing to say.

You know? One person is born and twelve die in a year. What does it mean?

2. Cruel husband: Henry went to the hospital to pick up his wife with flowers in hand, and the hospital nurse treated him badly Say: ?Your wife is having surgery. ?What surgery? Brain surgery. ?Henry did not blame himself because his wife was undergoing surgery, but instead hummed a song outside. Is he too cruel?

3. Distance problem: There is a person riding a bicycle from point A to point B, while another person drives from point B to point A. On the road, they met. Do you know who is closer to place A at this time?

4. Bird in a dry well: A bird once fell into a dry well. Can it fly out on its own?

5 , Choice: If a museum is on fire, and the fire is very strong, and you are a staff member inside and can only save one painting, which one of them will you choose to save?

6. Magic Ball change: The magician stands on the stage with four balls in his hand. ?Everyone, please read it carefully. ? He put the ball on his palm and yelled: ? Chi! ? The ball was still in its original position, no change. However, when the audience saw this, they immediately clapped and cheered loudly. What is the reason?

7. Found a corpse: When Xiao Ming woke up in the morning, he found a corpse lying next to him, but he did not feel scared. Do you know why?

8. 7 stars: There are 7 stars here. Now I take away 4, and then I want to add 3 more to make 7. What should I do?

9. Comparison of distances: In a building with the same number of stairs on each floor, how many times does it take you to go from the 1st to the 25th floor than from the 1st to the 5th floor?

10. Smart Sun Bin: One time, Gui Guzi said to his disciples Sun Bin and Pang Juan: "Today you two compete to eat steamed buns. Whoever eats the most steamed buns will win." ?He also stipulated that each person can only take two steamed buns at most at a time, and they can only take them after they have finished eating. As soon as the master opened the steamer lid, Pang Juan grabbed two steamed buns and ate them. Sun Bin saw that there were three steamed buns left in the steamer, so he took one and ate it first. Pang Juan secretly laughed that Sun Bin would definitely lose, but the result of the game was that Sun Bin won. Think about it, how could Sun Bin win?

Answer:

1. According to the zodiac sign, no matter how many people are born in a year, they all belong to the same zodiac sign. No matter how many people die, they cannot do without these twelve zodiac signs.

2. His wife is a surgeon and is operating on patients.

3. Just as close.

4. No, the flying principle of a bird is the same as that of an ordinary airplane. It must have a long enough flying space. It cannot learn to fly a helicopter, so it can only sit in a well and watch the sky.

5. The one closest to the door.

6. The magician is missing.

7. The corpse is a mosquito.

8. First put the 4 pieces that you took away together, and then put the 3 pieces in.

9, 4 times.

10. When Pang Juan was eating the second steamed bun in his hand, Sun Bin had already finished one of the steamed buns in his hand. He could grab the remaining two steamed buns in the cage and slowly Eat slowly. A selection of puzzles that will make you smarter the more you play

1. There are two incense sticks that are unevenly distributed. The time it takes for the incense to burn out is one hour. How can you determine a period of 15 minutes?

2. A manager has three daughters. The sum of the ages of the three daughters is equal to 13. The sum of the ages of the three daughters is equal to the manager’s own age. A subordinate already knows the manager’s age, but still cannot Determine the ages of the manager's three daughters. At this time, the manager said that only one daughter has black hair. Then the subordinate knew the ages of the manager's three daughters. What are the ages of the three daughters? Why?

3. Three people went to stay in a hotel and stayed in three rooms. Each room cost $10, so they paid the boss $30 a ***. The next day, the boss felt that three rooms only cost $25, so he asked the boy to return $5 to the three guests. Unexpectedly, the boy was greedy, so he only returned $1 to each person, and secretly took $2 to himself. In this way, he was equal to the three guests. The guests each spent nine yuan, so the three of them spent $27 per night. In addition, the younger brother ate more than $2 for himself, and the total was $29. But when the three of them paid $30 a ***, what about $1 left?

4. There were two blind men. They each bought two pairs of black socks and two pairs of white socks, so there were eight pairs of socks. The fabric quality and size are exactly the same, and each pair of socks is connected by a piece of trademark paper. Two blind men accidentally mixed up eight pairs of socks. How can each of them retrieve two pairs of black socks and two pairs of white socks?

5. A train leaves Los Angeles and goes straight to New York at a speed of 15 kilometers per hour, and another train travels at 20 kilometers per hour. Driving from New York to Los Angeles at speeds of kilometers. If a bird starts from Los Angeles at the same time as two trains at a speed of 30 kilometers per hour, encounters another car and returns, flying back and forth on the two trains until the two trains meet, what will this bird do? How far did the bird fly?

6. You have two jars with 50 red marbles and 50 blue marbles. Randomly select a jar and randomly select a marble and put it in. jar, how to give the red marble the greatest chance of being selected? In your plan, what is the accurate probability of getting the red ball?

7. You have four jars containing pills, each with a pill. A certain weight, the contaminated pills are the weight of the uncontaminated pills. 1. How to judge which jar of medicine is contaminated if it is only weighed once?

8. You have a bucket of jelly, which contains yellow and green. , three kinds of red, close your eyes and choose two of the same color, grab two of the same color. How many can you grab to be sure that you have two jelly of the same color?

9. Perform the following operations on a batch of lights numbered 1 to 100, with all switches facing up (on): For multiples of 1, flip the switch once in the opposite direction; for multiples of 2, flip the switch in the opposite direction;

10. Imagine you are in front of a mirror. May I ask why the image in the mirror can be reversed left and right, but not up and down?

11. A group of people are having a dance party, and everyone wears a hat on their head. Wearing a hat. There are only two kinds of hats, black and white, and there is at least one black one. Everyone can see the color of other people's hats, but not their own. The host first asked everyone to see what kind of hat others were wearing, and then turned off the lights. If anyone thought they were wearing a black hat, they would slap themselves in the face. When I turned off the lights for the first time, there was no sound. So the lights were turned on again, and everyone watched it again. When the lights were turned off, there was still silence. It wasn't until the third time the lights were turned off that the sound of slaps could be heard.

Ask how many people are wearing black hats?

12. Two rings, with radii of 1 and 2 respectively. The small circle goes around the circumference of the big circle inside the big circle. How many times does the small circle rotate by itself? If How many times does the small circle rotate inside the big circle?

1 3. A bottle of soda costs 1 yuan. After drinking, two empty bottles are exchanged for one soda. Question: You have 20 yuan. How many bottles of soda can you drink at most? A simplified version of the puzzle to make you smarter the more you play

1. This manager has a pair of twin daughters, their ages are: 2 years old, 2 years old, and 9 years old; Age is 32 years old.

Closely related to biology. The relationship between hair color and age.

The subordinates know the age of the manager. As long as 13 is divided into three numbers, the product of the three numbers equals the age of the manager. There are many possibilities.

Therefore, the reason why the subordinates cannot guess the answer is : Lacking additional conditions, the three-variable equation has no definite solution and must be converted into a binary equation

Assuming that there are no twins among the three daughters, then the age gap between the three people should be greater than one value (biological common sense )

Black hair is a dominant gene. If the manager and his wife do not have black hair, then this girl with black hair is...

There is only one truth: there are no twins among the girls, but There are two girls whose ages are the same!

Then, solve the binary equation

Obviously, the ages of the three daughters are not 0, otherwise the father would be 0 years old. , so the daughter’s age is greater than or equal to 1 year old. In this way, the following situation can be obtained: 1*1*11=11, 1*2**10=20, 1*3*9=27, 1*4*8=32, 1*5*7=35, {1 *6*6=36}, {2*2*9=36}, 2*3*8=48, 2*4*7=56, 2*5*6=60, 3*3*7=63, 3*4*6=72, 3*5*5=75, 4*4*5=80 Because the subordinates already know the age of the manager, but still cannot determine the ages of the manager’s three daughters, it means that the manager is 36 years old (because { 1*6*6=36}, {2*2*9=36}), so there are only two situations for the ages of the three daughters. The manager also said that only one daughter has black hair, which means that only one daughter is older. , the others are relatively small, and their hair has not yet grown into black, so the ages of the three daughters are 2, 2, and 9 respectively!

2. Just misleading readers

Should It’s 25 (the money for three rooms) 3 (three yuan returned) 2 (stolen by the younger brother) = 30

3. Tear open the label of each pair of socks, and then each person takes one of each pair. Only, OK

4. The distance from New York to Los Angeles is set to s. Because birds fly non-stop, the time when the car meets is the time for the birds to fly, so the distance the birds fly is: [s/( 20 15)]* 30=S*6/7.

That is, the distance a bird flies is 6/7 of the distance from New York to Los Angeles.

5. Put a red ball in one jar, and put 49 red balls and 50 blue balls in another jar. The probability is close to 75.

This is the maximum probability that can be achieved. .

In fact, as long as one jar contains 50 red balls and no basketballs, and the other jar contains the remaining balls, the probability of taking out a red ball is greater than 50

6. Take 1 pill from the first pill bottle

Take 2 pills from the second pill bottle

Take 3 pills from the third pill bottle

Take 4 pills from the fourth pill bottle

Calculate the weight of the standard 10 pills and compare it with the current 10 pills

If the weight is 1 more, it is the first one The medicine bottle is contaminated

If the weight is 2 more, the second medicine bottle is contaminated

If the weight is 3 more, the third medicine bottle is contaminated

If the weight is 4 more, the fourth medicine bottle is contaminated

All prime numbers within 7.1-100 (2.3.5.7.11.13.17.19.23.29.31.37.41.43.47.53.59.61.67.71.73.79 .83.89.91.97)

There are no multiples from 100 to 53. It should be 53

8. Because the image of a person is symmetrical with respect to the mirror, and the mirror is It is placed upright, so the person in the mirror is turned upside down.

And to turn the mirror upside down, just place the mirror sideways, and the person standing on the mirror will be upside down.

9. Both are Black. So: Anyone who sees that other people have black hats except for one white hat, but what about his own? So he dare not make a conclusion that he is a black hat, so there is no reflection when he turns off the light for the first time. Same reason. The same is true for other people, but the person with the white hat sees that everyone is a black hat, so he is definitely a white hat, so it still does not reflect when he turns off the light for the second time, but because the person with the white hat does not turn off the light for the second time, If he slaps himself when the lights are on, then others can be sure that the person wearing a white hat already knows that he is a white hat, that is: he saw that everyone else is wearing a black hat! So all the black hats slapped themselves,

10. 1 week inside and 3 weeks outside

1139 bottles

20 yuan---〉20 bottles (leaving 20 empty)--〉10 bottles ( 10 empty bottles (remaining 10 empty)-->5 bottles (remaining 5 empty)-->2 bottles (remaining 3 empty)-->1 bottle (remaining 2 empty)-->1 bottle (remaining 1 empty)