Answer:
What goes through a door but never goes in and never comes out?
I am the kind of food monkey likes and people slip on me and fall in cartoons.
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 can run but not walk. Wherever I go thought follows close behind.
I wear a green jacket on the outside white jacket as a second layer and red jacket inside. I am pregnant with a lot of babies. (one word)
What is lighter than what it is made of?