Answer:
I go up when the rain comes down
What can travel around the world while staying in a corner?
What can be heard in court or used to carry briefs?
He has married many women, but has never been married. Who is he?
I can sizzle like bacon. I am made from an egg. I have plenty of backbone but lack a good leg. I peel layers like onions but still remain whole. I can be long like a flagpole yet fit in a hole.
Almost everyone needs it, asks for it, gives it. But almost nobody takes it.