Answer:
Mountains will crumble and temples will fall, and no man can survive its endless call. What is it?
They are the shore's gallant knights.
Inside a burning house, this thing is best to make. And best to make it quickly, before the fire's too much to take.
It weighs next to nothing but no one can hold it for long. What is it?
One more than a duet.
It can be cracked, It can be made, It can be told, it can be played. What is it?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?