Riddle: A husband was called by the police telling him that his wife was killed and that he should get to the crime scene as soon as possible. Shocked, the husband dropped the phone and drove to the crime scene in 20 minutes, where he was arrested and charged for murder. How did the police know it was him?
Answer: The police told him to get to the crime scene, but they didn't specify where. The husband couldn't have known where the crime scene was unless he'd been there when the wife was dead or dying.