Answer:
Goes over all the hills and hollows, Bites hard, but never swallows.
What can travel around the world while staying in a corner?
What do you call a three humped camel?
I can be cracked made told and played.
There's not a kingdom on the earth I haven't traveled over and over and though I know not whence my birth yet when I come you know my roar. I through the town do take my flight and through the fields and meadows green and whether it be day or night I neither am nor can be seen.
The sun bakes them, The hand breaks them, The foot treads on them, And the mouth tastes them. What are they?