Answer: Only when light shines on an object can it be seen. When the light of the flashlight shines on the person on duty outside the door, it is impossible to see the robber with the flashlight clearly. You can go back and try it yourself.
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murderer
Sandy didn't come home after going out on this hot weekend night. The next day, she was found dead in the house
In the park nearby.
When the police went to Sandy's house to investigate, Sandy's mother cried her eyes out because she was Shen Jia's only daughter, and she was.
The breadwinner of the family. When Sandy's mother settled down, she said thoughtfully, "Sir, I remember.
At about 5: 30 last night, a man called. He claimed to be my daughter's boyfriend and said it was too late in the day.
Hot, ask her 18: 30 to meet in the park downstairs of his company. Later, when my daughter came back at 6 o'clock, I told her.
Then she changed her clothes and left. "
"Did the man say his name?" "No, he said my daughter would know who he is!" In the end, she was sad again.
Cry quietly.
The police finally searched Sandy's room and found a phone book with two men's names on the title page.
1. Chen Kun (detective agency staff); 2. Zhang Rong (telegraph office clerk)
Excuse me, who is the murderer?
A: The murderer was Zhang Rong, an employee of the telegraph office. Because Sandy's mother once said, "That man asked my daughter to meet him in the park downstairs of his company last night 18: 30." Only the telegraph office will get used to using this time expression. Usually most people just say 6: 30 and meet somewhere. Therefore, it is inferred that the murderer is Zhang Rong.
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The story of diamonds
One day in summer, a female thief, a beautiful aunt, disguised herself, sneaked into the jewelry auction and stole two big diamonds. As soon as she got home, she immediately put the diamonds in water to make ice cubes and put them in the refrigerator. Because diamonds are transparent and colorless, they are hidden in ice cubes in case the police search them and they are not easy to find.
The next day, detective Ishikawa came. "Let's hand over your stolen diamonds. Closed-circuit television at the jewelry auction has captured the scene of your theft after special makeup. Although the police didn't see that you put on makeup, you couldn't hide it from my eyes. You know it's you at a glance. " Detective Ishikawa said.
"If you suspect that I did it, just search at my house until you are satisfied." Mei Gu said casually.
"It's really hot today. How about an iced coke? "
Meigu took out ice cubes from the refrigerator, put 4 pieces in each cup, poured coke and handed detective Ishikawa a cup. Put ice cubes with diamonds in their own cups. Even if the ice melts and the diamond is exposed, you can't see it under half a cup of coke. How did detective Ishikawa think that there would be diamonds in the coke he was drinking in front of him? Mei gu secretly contemplated.
"Then, you're welcome." Detective Ishikawa took the cup and took a sip. He glanced at Migu's cup subconsciously. Excuse me, can you change the cup? ""what! Do you suspect that I poisoned your cup? No, this is not poison. I want to try diamond coke. " Detective Ishikawa suddenly snatched the cup from Meigu.
The ice hasn't melted yet, so how did detective Ishikawa see through the diamonds hidden in Meigu's coke cup?
A: The proportion of diamonds is very large. Therefore, ice cubes containing diamonds will sink into the water, while other ice cubes will float on the water.
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The story of this book:
During World War II, in order to better understand the enemy's strength, both warring parties sent spies to sneak into the enemy's interior and steal important military information. One day, German spy Hilary successfully stole a tank data from the Soviet Union, which recorded the important data of the tank in detail. Once this information falls into the hands of Germany, these tanks will become scrap iron on the battlefield. The situation is very critical. Fortunately, in a short time after Hilary stole the information, the Soviet Union discovered that the information had been stolen, so it immediately ordered Moscow to be blocked and no one was allowed to enter or leave, so Hilary was still left in Moscone. At the same time, special forces headed by Major Pakov are also searching for Hillary in Moscone. The spy was quickly caught in a bar and immediately interrogated. But the information was hidden by Hillary. He doesn't have it with him. Pakov asked, "Hillary, where did you hide the information?" Hand it over right away. Hillary said, "I put it in a book in the library." "Which library is it?" Pakov asked. A small library not far from Red Square. I remember the title of this book is Bible, and the information is sandwiched between pages 43 and 44 of this book. ""All right, Hillary! ！” Major Pakov slapped the table and said angrily, "Don't lie. Give me the information! ！” There's a problem. How did Major Pakov know that Hillary was lying?
A: Pages 43 and 44 are the same page.
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crack
Late at night, a thief broke into the house for the first time. There are no guards here. The thief swaggered on the light, sat down at the desk, opened the drawer, but closed it without flipping the contents; Then he opened the filing cabinet, took out important documents, and then closed the filing cabinet; He also opened the safe, took out the money and closed it.
The thief remembered what his master told him and wiped all the places he touched with his handkerchief before going out. When going out, he wiped the light switch on the wall again. Finally, close the door with your legs.
"No one will know that I have been here, unless someone takes the file or opens the safe!" The thief thought proudly.
However, the next day, the first person who entered the room found that someone had been here last night. What is the thief's flaw?
Answer: The thief forgot to turn off the light.
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Brother whisky
In a small town, there are a pair of half brothers. Their father died, leaving a large fortune. He didn't say who to leave it to before he died. The two brothers fought fiercely for property.
My brother owns a bar. One day, my brother invited my brother to drink his own whisky. My brother is afraid of poison and dare not drink it. Brother said, "Look, brother, on such a hot day, there are ice cubes in this glass of wine, which is very thirst-quenching. If you don't believe me, I'll give you a drink. " After that, my brother started drinking. My brother drank half of it. As soon as he saw that it was all right, he took the cup and finished it, but before long, my brother died.
After investigation, the police found that my brother died of potassium cyanide poisoning, but my brother also drank the same glass of wine. Why isn't he dead? What the hell is going on here?
My brother's whisky replied: My brother injected potassium cyanide into the ice. My brother didn't melt the ice when he drank it, and the wine was non-toxic. When my brother drank it, the ice melted and whiskey became poisonous wine.
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Xiaoming, a rich man in Japan, bought a boat and wanted to go sightseeing. There are only six people on board. Xiaoming's important documents were stolen on the ship, and there were five suspects.
The first man is the captain. He said he was sailing and there was a camera to testify.
The second man, his eldest son, said he was sleeping, and no one testified.
The third person said that he was replacing the China flag with the Japanese flag, which had already been replaced, but later he found that the flag had fallen, so he took it down and took it to the present. The national flag can testify.
The fourth person and the fifth person said that they were playing big cards and could testify to each other.
After listening to their stories, Xiao Ming knew who the murderer was. Who is the murderer? Why?
Answer: the third person
The reason is that the national flag of Japan is a piece of white cloth with a red sun in the middle. It's not obvious when you hang it. It's the same anyway. So, the third person is lying.