Answer:
The higher I climb, the hotter I engage. I cannot escape from my crystal cage.
What does everyone know how to open but not how to close?
What is it that no man ever yet did see, which never was, but always is to be?
What goes with a car, comes with a car, is no use to a car but a car cannot move without it?
What gets wetter as it dries?
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?