Answer:
Sitting down you have it, Standing up you don't.
What can you hold in your left hand but not in your right hand?
What is it that no man ever saw, which never was, but always will be?
A canvas full of stars.
The more I appear The less you see. So riddle me this: What could I be?
Break me and I am better immediately set and harder to be broken again.
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?