Fun Riddles

Question: A man in tights is knocked out by a rock next to him.The rock did not touch him.What happened to him?

Question: Most people are born on one, die on one, and experience some of their most blissful moments upon it.

Question: what is a cow moving backward?

Question: What do you get when you cross a cheetah and a burger?

Question: It takes one word to separate them; otherwise they are inseparable.

What are they?