A: Zero. Q: Why was the fraction afraid of the decimal? A: Because the decimal was always a point. Q: What is the number one rule in mathematics? A: Do not multiply by zero. Q: Why did number four sit with number five at lunch? A: Because they wanted to be “average”.~ Answer: A cow. Riddle: A man is found hanging dead from the ceiling of a room. Dimensions of the room The man is 30 meters tall and the rope was 30 meters long. There are no windows and only one door giving access to the room. The door is locked from the inside and there is a puddle of water under the man. Homework Riddle Riddle Meme. Riddle Quiz Easter Riddles. Easter Riddles are hand-selected Easter riddles for use by teachers in the classroom and for homeschooling. This Easter Riddles Quiz offers the option to be downloaded in PDF or printable format directly from the Easter Riddles Quiz page. Easter riddle quiz. Puzzle Relay Race: Divide your class into teams and have them race to answer different puzzles on index cards placed around the room. Benefits of using puzzles in the classroom to improve critical thinking skills. Puzzles force students to think outside the box and analyze information from different angles. This type of mind.