Answer:
Without a bridle or a saddle across a thing I ride a-straddle. And those I ride by help of me though almost blind are made to see.
I am an activity dogs are very good at when a ball is thrown.
Soft hairy from door to door. I am the pet that always stays on the floor.
Flat as a leaf, round as a ring; have two eyes, can't see a thing. What am I?
I'm tall when I'm young and I'm short when I'm old. What am I?
What never gets any wetter no matter how hard it rains?