Answer:
As round as an apple. As deep as a cup. All the king's horses can't pull it up.
The sun bakes them, the hand breaks them, the foot treads on them, and the mouth tastes them.
Vikings use this for warmth.
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.
What has a mouth but can't chew?
What did the piece of wood say when he saw the screwdriver and screws approaching?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?