Riddle: There was a family living in an round house. There was a mother, a father, a daughter, a son, and a maid. When the son was murdered everyone was suspects. The father said that he did not kill the boy, he was fixing the car outside. The mother said that she did not kill the boy, she was washing the dishes and cleaning the bathroom. The daughter said that she did not kill the boy, she was in her room all day listening to music. The maid said i did not kill the boy, i was sweeping every corner of the house. Who killed the boy?
Answer: The maid killed the boy. Her allaby was a false statment. There are no sides on a circle. And they lived in a round house.