High IQ reasoning questions and analysis that require an IQ of 120 or above to understand

What are the high-IQ reasoning questions that require an IQ of 120 or above to understand? This article is a collection of information on high-IQ reasoning questions that require an IQ of 120 or above to be understood. It is for reference only.

A classic high-IQ reasoning question that requires an IQ of 120 or above to understand

1. There are two unevenly distributed incense sticks. The time it takes for the incense to burn out is one hour. You What method can be used to 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 knew the age of the manager, but was still unable to determine the ages of the manager's three daughters. At this time, the manager said that only one daughter had black hair, and 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 younger brother to return $5 to the three guests. Unexpectedly, the younger brother was greedy and only returned $1 to each person, while secretly taking $2. This 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. We only weigh it once, how to judge which jar of medicine is contaminated?

8. You have a bucket of jelly, and there is yellow in it. There are three kinds of green and red. Close your eyes and grab two jelly 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. Please tell me 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 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 lights were turned off for the third time that the sound of slaps could be heard.

Ask how many people are wearing black hats?

12. There are 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?

13. A bottle of soda costs 1 yuan. After drinking, two empty bottles are exchanged for one soda. Question: You have 20 yuan, what is the maximum How many bottles of soda can you drink?

Answer:

1. There are two incense sticks distributed unevenly. The time it takes for the incense to burn out is one hour. How can you determine this? 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 age of the manager. One of his subordinates already knows the manager. However, the age of the manager’s three daughters was still uncertain. At this time, the manager said that only one of his daughters had 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 thought that three rooms only cost $25, so he asked the younger brother to return $5 to the three guests. Unexpectedly, the younger brother was greedy and 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?

10. Imagine you are in front of a mirror. Please tell me 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 everyone else's hats, but not their own. The host first asked everyone to see what 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?

13. A bottle of soda costs 1 yuan. After drinking, two empty bottles are exchanged for one soda. Question: You have 20 yuan, what is the maximum How many bottles of soda can I drink?

A selection of high-IQ reasoning questions that require an IQ of 120 or above to understand

1. In the dispatch court of a certain court, the judge is trying a case civil cases. Among them, the plaintiff sued and said: The defendant once lent him 10,000 yuan, but has not returned it yet. Seeing that the statute of limitations is about to expire, the defendant must return it immediately. ?

The plaintiff took out an IOU, and the date on it was February 29, 1993. The judge took the IOU, thought for a moment, and then said to the plaintiff: "Did the defendant borrow the loan?" I hope you will be honest about your money, otherwise you will be legally responsible. ?

The plaintiff still argued hard. Finally, the judge stated his reasons, and the plaintiff had to bow his head and admit his mistake. Please tell me why.

Answer: There is no 29th in February 1993

2. After my sister came back from shopping for groceries, she casually put some change in her hand in the drawer. However, when her sister When she went to get money to buy groceries in the afternoon, she found that the change in the drawer was gone. So, she called her three sisters and asked them if they had taken the change in the drawer.

A said: "I took it and went to buy snacks at noon." ?

B said: ?I saw A took it. ?

C said: ?In short, neither I nor B took it. ?

One of the three people was lying, so who was lying? Who took the change?

Answer: C lied, and both A and C took part of it. If A lies, then B also lies, which is inconsistent with the meaning of the question; if B lies, then A also lies, which is inconsistent with the meaning of the question. Then, the liar must be C. Only if A and C both get change can it meet the meaning of the question.

3. A certain unit accepts a scout. The method of the examination is: everyone who takes the examination is locked in a room with better conditions. Someone delivers water and food on time every day, and there is a special person guarding the door. Whoever leaves the room first will be admitted. Some people said they had a headache and wanted to go to the hospital, and the gatekeeper called in a doctor; some said their mother was seriously ill and they needed to go back to take care of her, and the gatekeeper contacted her mother by phone and she was at work. Others also gave many reasons why the gatekeeper refused to let them out. Finally, someone said something to the gatekeeper, and the gatekeeper let him out. What did this person say?

Answer: He said: "I won't take the exam." ?The gatekeeper may let someone go if he gives up on the exam.

4. A pair of enemies were captured by a murderer and locked in a secret room. The murderer gave them a question. Whoever can successfully guess the date within a limited time can open the door and leave safely.

First of all, the murderer gave ten dates: May 16, May 17, May 19, June 15, June 18, July 14, July 16, August 14, and 8 Month 15, August 17, and then told A the month and B the day. The murderers knew they wouldn't tell each other what they knew.

When the time limit was up, A laughed and said: "I can't guess it anyway, because I'm sure you can't guess it either." Suddenly b stood up, opened the door and escaped, and A suddenly realized? I also guessed it, but it was already too late. What is the date?

Answer: Step 1: Since B cannot judge the month through the day, 5-19 and 6-18 are excluded because only one of them belongs to the characteristic number. Step 2: B determines based on A that B does not know the month, excluding May and June, that is, 5-16, 5-17, 6-15, because in these two months, there is the possibility that B directly determines the month based on the feature number. Step 3: B can escape, proving that he has the correct answer in the remaining months of July and August. Then the same dates of 7-14 and 8-14 cannot be determined and the months can be excluded. Step 4: B has escaped, and A immediately knows the answer, proving that in the remaining three times, 7-16, 8-15, and 8-17 have the only answer, which is 7-16

< p>5. After five pirates grabbed 100 gold coins, they discussed how to distribute them fairly.

The distribution principle they agreed on is:

(1) Draw lots to determine the distribution sequence number (1, 2, 3, 4, 5);

(2) Draw lots The pirate with No. 1 proposes a distribution plan, and then 5 people vote. If the plan is approved by more than half of the people, the distribution will be carried out according to his plan. Otherwise, No. 1 will be thrown into the sea to feed the sharks;

(3) If No. 1 is thrown into the sea, No. 2 will propose a distribution plan, and then the remaining 4 people will vote. If and only if more than half of the people agree, the distribution will be based on his proposal, otherwise Will be thrown into the sea;

　(4) and so on.

It is assumed here that every pirate is extremely smart and rational. They can conduct rigorous logical reasoning and judge their own gains and losses rationally, that is, they can get the most gold coins while saving their lives. . At the same time, assuming that the results after each round of voting can be successfully implemented, what kind of distribution plan should the pirate who draws No. 1 propose so that he will not be thrown into the sea and get more gold coins?

Answer: 1:96 2:0 3:0 4:2 5:2 First of all, when voting on 3's plan, 4 will support 3, because otherwise he will be opposed by 5 and die. Therefore, if 1 and 2 die, 3's plan must be 100,0,0 and will definitely be supported by 3 and 4. At this time, the income of 4 and 5 is 0, so 1 and 2 can bribe 4 and 5 while Get support. At the same time, 3's expected income is 100, and he will definitely oppose 1 and 2 at all costs. And if 1 dies, 2's plan must be 98, 0, 1, 1, and it will definitely pass. So the optimal solution for 1 is 96, 0, 0, 2, 2, and it will definitely pass. In fact, 98, 0, 0, 1, and 1 are also acceptable and may pass (depending on the mood and cruelty of 4 and 5).

A simplified version of high-IQ reasoning questions that require an IQ of 120 or above to understand

1. The doctor gave the patient two kinds of pills, two of each type, and the two pills have different ingredients. , but the appearance is the same. The doctor requires you to take one pill of each medicine in the morning and at night. Now the pills are mixed together and difficult to tell. If the patient does not take the medicine as prescribed or does not take the medicine, he will die. What can he do to survive?

Answer: Although I go to the doctor again and ask him to prescribe medicine again, it cannot be said to be the wrong answer. But the smart answer is: cut all 4 pills into equal halves, then eat half of each pill in the morning and at night.

2. There are four friends living in a small town. Their names are A, B, C, and D. One of them is a policeman, one is a carpenter, one is a farmer, and the other is a doctor.

One day, A’s son broke his leg, and A took his son to see a doctor. The doctor has a sister who is C's wife. The farmer is not married. He raises many hens. B often goes to the farmer's house to buy eggs. The police see C every day because they are neighbors.

Excuse me: Who among the four is a farmer?

A, A

B, B

C, C

　D, D

Answer: D. First of all, we can determine C: The doctor has a sister who is C’s wife, so C is not a doctor; the police can see C every day, so, C Not a policeman; The doctor has a sister who is the wife of C. The farmer is not married. C is married, so C is not a farmer; it is assumed that C is a carpenter. Next, determine A. ?A takes his son to see a doctor. ?So A is not a doctor; A is married, so he is not a farmer; from C’s identity as a carpenter, we know that A is not a carpenter either, and finally A is a policeman. Then determine B. ?B often goes to farmers’ houses to buy eggs?, so B is not a farmer, a carpenter or a policeman, but a doctor. Finally, it is clear that Ding is a farmer. In fact, it’s not that convoluted at all. The farmer is not B. The farmer is not married, and he is not C. If he is not married, he has a son, so he is not A. So, although the question is very convoluted, the answer has been leaked a long time ago!

3. A bottle of beer is 2 yuan, 2 empty wine bottles can be exchanged for 1 bottle of beer, and 4 bottle caps can be exchanged for 1 bottle of beer.

How many bottles of beer can you drink for 10 yuan?

1. Credit is not allowed

2. No? Exchange caps for empty bottles? Transactions

3. No Allowed? Exchange 2 caps for 1 empty bottle? Transaction

Answer: The total number of drinks is 15; the number of bottles left is 1; the number of caps left is 3

4 ,. The thief waited for 5 hours after the store closed to break into the house. The thief searched around the store with a flashlight to see if there was anything valuable!

Suddenly the thief realized that he was stepping on a puddle of water and looked down to see what he was stepping on. When he arrived, he didn't expect that there was a pool of blood!

The thief was shocked, but he thought: This is the kitchen, so blood is normal. ?

He thought for a moment, and the next second, he suddenly ran out in despair.

So, why did the thief run out? What did he realize?

Answer: Because the store has been closed for 5 hours, if there is blood on the ground, it should have solidified, so This pool of blood must be fresh. A murder may have occurred here, so the thief ran out in fright.