Answer:
What object has keys that open no locks, space but no room, and you can enter but not go in?
I'm the start of eternity and the end of space. There are two of me in heaven and one in hell.
Rotten trees and Jack-O-Lanterns have this characteristic in common.
What can you hold in your left hand but can never hold in your right hand?
There's one in every deck of cards and in a famous movie
What never gets any wetter no matter how hard it rains?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?