"I am the smallest bank in the world. I have no interest rates. I must be broken to be emptied. I am shaped like a pig for reasons nobody agrees on. What am I?"

Answer: A Piggy Bank. A piggy bank is a ceramic or plastic savings container for coins. To retrieve the money you must often break it open. The pig shape is thought to come from 'pygg' — a Middle English word for the orange clay used to make household pots, which were used to store coins.