Riddle: 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?
Answer: He never asked the cop where the scene of the crime was, so they knew that he had murdered his wife.
Riddle: A girl was attending her mother's funeral where she met a man. She was very intrigued by the man and was interested in getting to know him. As she was making her rounds she realized she had not gotten the man's name or number. Later, when she went to find him, he had already left. A week later, she murdered her older brother to find the man. Why?
Answer: So the man would attend the funeral again.
Riddle: Two girls ate dinner together. They both ordered iced tea. One girl drank them very fast and had finished five in the time it took the other to drink just one. The girl who drank one died while the other survived. All of the drinks were poisoned. How did the girl who drank the most survive?
Answer: The poison was in the ice. The survivor girl didn't give time for the ice to melt. Whilst the dead girl waited until the ice melted which meant that the poison was released into her drink.
Riddle: I do not breathe, but I run and jump. I do not eat, but I swim and stretch. I do not drink, but I sleep and stand. I do not think, but I grow and play. I do not see, but you see me every day. What am I?
Answer: A leg (still attached to a living body, of course).