Answer:
What is the easiest way to keep water from running?
What starts with a 'P', ends with an 'E' and has thousands of letters?
It increases and decreases yet no one see it. It is not a fire and yet it can be quenched.
Why was the math book sad?
It can make rain, but take away one leg and it'll give you pain.
What sphinxes employ and players enjoy.
Funny
Animal
Difficult
Easy
Food
Kids
Logic
What am I?