Answer:
Has no feet, but travels far. Is literate, but not a scholar. Has no mouth, yet clearly speaks.
Mountains will crumble and temples will fall. And no man can survive its endless call.
My life can be measured in hours, I serve by being devoured. Thin, I am quick. Fat, I am slow. Wind is my foe.
This is needed both for courage and hardcover books.
My first half is normally made of stone, my second is crazy, and I taste sweet when complete.
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?