Good Riddles

Question: Why are some fish at the bottom of the ocean?

Question: What has legs but doesn't walk?

Question: Bobby's teacher gave him a math quiz. Every time he got an answer right, points would be taken away, so whoever had the most points, got the most questions wrong. Bobby's score was the highest, yet he still got the most questions correct out of the class. How is this possible?

Question: You were counting sheep. You thought you counted eight but you only counted seven and a half. How is that possible?

Question: How do you run around your block 10 times without breathing heavily?