Answer:
I go in hard, come out soft. Blow me hard and I'll make a pop. What am I?
Whoever makes it, tells it not. Whoever takes it, knows it not. Whoever knows it, wants it not. What am I?
I am always around you but often forgotten. I am pure and clean most of the time, but occasionally rotten. What am I?
I run up and down the stairs without moving. What am I?
There's a one-story house in which everything is green. Green walls green windows green doors. What color are the stairs?
I flow from the Homerβs mouth when he sees doughnuts.