Answer:
Soft hairy from door to door. I am the pet that always stays on the floor.
I start new then become old. Start clean but become dirty. I usually start big then become little. What am I?
I am the kind of an ant that's good at math. What am I?
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
I hold two meanings. With one I may be broken, with the other I hold on. What am I?
A cowboy rode into Friday. He stayed in town for three days and rode back on friday. How is that possible?