Fun Riddles

Question: Light hides me and darkness kills me.

What am I?

Question: You can only keep it once you give it to somebody.

What is it?

Question: Sometimes I'm high and sometimes low,
and I creep between your toes.
My orders come from the sky,
I make men fall and rise.

What am I?

Question: 7 frogs are sitting on a log. 1 of them decides to jump off of the log. At this moment how many frogs are on the log?

Question: A man walks into a completely dark room. There is a box on a table at the other end of the room and immediately the man knows one of the contents of the box. He cannot smell, see, or hear it.

How does he immediately know what is inside?