Answer:
What cleans as it gets dirty only to get clean the more you use it?
This is your stomach's way of letting you know you've neglected it.
Mountains will crumble and temples will fall, and no man can survive its endless call. What is it?
I have joy in bringing two together, but darning my existence! My life hangs by a thread, filled with ups, downs and resistance!
What is something that can go up quite easily, but is not as easy to bring back down?
What never gets any wetter no matter how hard it rains?
Easy
Animal
Difficult
Food
Funny
Kids
Logic
What am I?