Riddle: There was once a rich man who lived in a large circle house, one day he woke up and found that someone had spilt jam all over his new shirt. When he asked who did it, the 1st servant said "it wasn't me I was cooking." The 2nd servant said " It wasn't me I was tiding up the books" the 3rd servant said "It wasn't me I was dusting the corners of the house" Who did it?
Answer: The third servant because they said they were dusting the corners of the house, but the house has no corners since it's a circle!