Answer:
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.
I have two bodies joined together as one. When standing still I run and run.
the only amusing part of the body
By Moon or by Sun I shall be found. Yet I am undone if there's no light around.
I am mother and father, but never give birth or nurse. I'm rarely still, but I never wander. What am I?
I build up castles. I tear down mountains. I make some men blind. I help others to see.