Answer:
What can be filled with empty hands?
What I am filled, I can point the way. When I am empty. Nothing moves me. I have two skins. One without and one within.
I have legs but walk not, a strong back but work not. Two good arms but reach not. A seat but sit and tarry not.
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
I am mother and father, but never birth or nurse. I'm rarely still, but I never wander.
I am free the first time and second time but the third time is going to cost you money.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?