Answer:
What can run but can’t walk?
The sun bakes them, the hand breaks them, the foot treads on them, and the mouth tastes them.
Walk on the living, they don't even mumble. Walk on the dead, they mutter and grumble.
Halo of water, tongue of wood. Skin of stone, long I've stood. My fingers short reach to the sky. Inside my heart men live and die.
What has a spot and is very bright, is sometimes, red, white, blue, yellow or green and is often blinding.
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?