Riddle: I exist, but have no material form. I am made of numbers, but appear square. I build upon other of my own, but do not topple down. I sit still and do nothing, but I'm still useful. What am I?
Riddle: The Smiths were a wealthy family. They lived in a large circular house. When Mr. Smith came back he noticed that his favorite jersey was ruined. He asked who did this. Mrs. Smith said I was washing the cloths. The daughter said I was drawing a picture. The son said I was playing basketball. The maid said I was dusting in the corners. Who ruined the jersey.
Answer: The Maid did! Because she said she was dusting in the corners. But the Smiths own a CIRCULAR house!
Riddle: You start at home. You leave, make three left turns, and you are back home. There is two people waiting for you to arrive. What two people are there waiting for you?