Answer:
The sun bakes them, the hand breaks them, the foot treads on them, and the mouth tastes them.
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
A hole in a pole, though I fill a hole in white. I'm used more by the day, and less by the night.
Iron roof, glass walls, burns and burns and never falls.
I weaken all men for hours each day. I show you strange visions while you are away. I take you by night, by day take you back. None suffer to have me, but do from my lack.
What is so fragile that saying its name breaks it?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?