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!
What runs around a soccer field, but doesnβt move?
I fill a room but take no space.
I am heavy forward but backward I'm not.
Born of sorrow, grow with age, you need a lot of me to be a sage. What am I?
What language does a billboard speak?