Answer:
What runs around all day. Then lies under the bed. With its tongue hanging out?
The more of them you take, the more you leave behind. What are they?
Of these things - I have two. One for me - and one for you. And when you ask about the price, I simply smile and nod twice.
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
I bind it and it walks. I loose it and it stops.
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?