Good Riddles

Question: I sit on a bridge so you might see just how clear the world can be. What am I?

Question: A man enters a field. As soon as he does, he dies. He is carrying a mysterious package. What is the package and why/how did he die?

Question: Why did the nudist not like going to London?

Question: I am a thing, when I look at him , he looks at us!! who am I???

Question: I'm small but big, i hide behind you but come out when you fall... What am I?