Answer:
At night I come without being fetched. By day I am lost without being stolen.
A hill full, a hole full; yet you cannot catch a bowl full. What is it?
What is the thing that stays the same size, but the more it's used the more it decreases?
To cross the water I'm the way, for water I'm above. I touch it not and, truth to say, I neither swim nor move.
Reaching stiffly for the sky, I bare my fingers when its cold. In warmth I wear an emerald glove and in between I dress in gold.
You use it between your head and your toes, the more it works the thinner it grows.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?