Answer:
What building has the most stories?
What do you have when you're sitting down that you don't have when you're standing up?
What can be seen but never found that only hides in the unwound?
What is the heart of many risks, has a heart, but is not a living being?
What is that which, though black itself, enlightens the world without burning?
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?