Riddle 1: One night, a man receives a call from the Police. The Police tell the man that his wife was murdered, and that he should reach the crime scene as soon as possible. The man drops the phone, shocked, and drives 20 minutes to the crime scene. As soon as he reaches the crime scene, the police arrest him, and he is convicted of murder. How did the police know that he committed the crime?
Riddle 2: A man is found dead on a Sunday morning. His wife calls the police immediately. The police question the wife and staff. The wife said she was asleep, the cook said he was cooking breakfast, the gardener said she was picking vegetables, the butler said he was cleaning the closet, and the maid said she was getting the post. The police immediately arrested the murderer. Who was the murderer?