Answer:
What goes up and down without moving?
I have eighty-eight keys but cannot open a single door? What am I?
Where humans breathe liquid.
What gets colder as it warms up?
What is it that given one, you'll have either two or none?
What never gets any wetter no matter how hard it rains?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?