Answer:
I help you carry your books.
It rows quickly with four oars but never comes out from under its own roof. What is it?
I am drawn by everyone without pen or pencil. What am I?
I regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
What did the thief get for stealing the calendar?
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.