Answer:
My keepers feed me colored balls. With sticks they store on my den walls. Sometimes I store them in my pouch. Sometimes deep in my belly; ouch!
I begin and have no end. Eventually I will be the end of all that has begun.
Iron roof, glass walls, I burn and burn but never fall. What am I?
I can't go left, I can't go right. I am forever stuck in a building over three stories high. What am I?
Although I may have eyes I cannot see. I have a round brown face with lots of acne.
What did the piece of wood say when he saw the screwdriver and screws approaching?