Answer:
It's what light turns into in the night
What devours all and can kill a king. Destroy a town and crushes mountains down?
What comes in many varieties and can't be seen or touched, but it often makes you move?
You're currently trying to solve one
What does a stone become when in the water?
What did the piece of wood say when he saw the screwdriver and screws approaching?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?