Answer:
What is made of wood but can't be sawed?
I grow where no flower grows, where no light touches the walls, up or down, that I don't care, was here before people were.
I turn around once. What is out will not get in. I turn around again. What is in will not get out.
I can be written, I can be spoken, I can be exposed, I can be broken.
It flies when it's on and floats coming off.
What is so fragile that saying its name breaks it?
Difficult
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?