Riddle: On the first day of school, the principal was murdered. These are the suspects, A gardener, who was trimming the school bushes, a Social Studies teacher, who was teaching the kids how to read a map, a math teacher, who was taking a mid-year test, or the chef/cook, who was cutting steak for lunch. Who murdered the principal?
Answer: The math teacher (He was 'Taking' a mid year test, on the first day of school!)
Source: https://riddles.com/index.php/6448