Answer:
What do you throw out when you need it but put away when you donβt?
I'm white, I'm round, but not always around. Sometimes you see me, sometimes you don't.
You can spin, wheel and twist. But this thing can turn without moving.
What runs around all day. Then lies under the bed. With its tongue hanging out?
I bind it and it walks. I loose it and it stops.
Special abilities and brightly colored underwear are all you need to be one of these.