Riddle: A family lived in a round house. There was a father, chef, grandma, grandpa, and three kids. They heard the children scream.The father and chef said they were in the kitchen using sharp knives, the grandpa said he was reading the newswpaper, and the grandma said she was in the corner knitting. Who killed the children?
Answer: The grandma murdered the children. We know this because she said she was in the corner, but there is no corner in a round house. Therefore, she lied to make herself seem innocent.