Answer:
I help you carry your books.
I have hundreds of ears but cannot hear a thing. What am I?
The shorter I am the bigger I am.
When I come in from sea to shore twenty paces you'll see No less no more.
Never ahead, ever behind, yet flying swiftly past, for a child, I last forever, for adults, I'm gone too fast.
A little house full of meat, no door to go in and eat.