Answer:
What has only two words, but thousands of letters?
What has been around for millions of years but is never more than a month old?
It goes up and down the stairs without moving.
Where humans breathe liquid.
I reach for the sky, but clutch to the ground. Sometimes I leave, but I am always around
What is lighter than what it is made of?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?