mediumlogic

A man murders his wife with a knife in their car. Nobody is around to see this. He throws her out of the car being careful not to leave any fingerprints on her body. Next he throws the knife off of a cliff into a gorge where it will never be found and he goes home. An hour later the police call him and tell him that his wife has been murdered and he needs to come to the scene of the crime immediately. As soon as he arrives, he is arrested. How did they know he did it?

He never ask the cop where the scene of the crime was so they knew that he had murdered his wife.

Why this works

The riddle hinges on the idea of knowledge and awareness. The man, having just committed the crime, should not know where the police would be investigating unless he was involved. When the police called him to come to the scene of the crime, his failure to ask for its location indicated that he already knew where it was, suggesting his guilt. This clever twist plays on the expectation that the man would be confused or surprised about the police's request, but his specific knowledge betrayed him.

Common Wrong Answers

“He left fingerprints on the knife.”

The riddle specifies that he was careful not to leave any fingerprints on the body or the knife, making this guess incorrect.

“He was seen by a witness.”

The riddle states that nobody was around to see the murder, so this guess contradicts the premise of the riddle.

“He confessed to the police.”

The riddle does not mention any confession; it focuses on the man's behavior when called by the police, indicating a lack of knowledge about the crime scene.

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