What Has - Jokes

What has a bottom at the top?
I don't know. What has a bottom at the top?
Your legs.

What has four legs, is big, green, fuzzy, and if it fell outof a tree would kill you?
A pool table.

What has four legs, whiskers, a tail and flies?
A dead cat.

What has ten legs, bulging eyes and is green and slimy?
I don't know.
Neither do I - but there's one crawling up your leg now!