Answer:
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.
Beautiful girls strut and sexy men 'do their little turn' on this.
What can be filled with empty hands?
I can run but not walk. Wherever I go, thought follows close behind.
There is an ancient invention. Still used in some parts of the world today. That allows people to see through walls.
I am the kind of an ant that's good at math. What am I?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?