Answer:
I sit in a corner while traveling around the world. What am I?
I go up and never come down no matter how hard you wish. As I get higher, more wrinkles crawl on to the face. What am I?
Goes over all the hills and hollows, Bites hard, but never swallows.
kings and queens may cling to power and the jesters may have their call. I am the most common but I can rule them all.
You find me behind the stars; or in a sixth seventh or third. It takes something round a computer and me to make pie. I am bigger than anything you can think of.
Give it food and it will live, give it water and it will die.