Answer:
What do you have when you're sitting down that you don't have when you're standing up?
You use it between your head and your toes, the more it works the thinner it grows.
There are two meanings to me. With one I may need to be broken, with the other I hold on. My favorite characteristic is my charming dimple.
I'm a god. I'm a planet. I measure heat.
I am the fountain from which no one can drink. For many I am considered a necessary link. Like gold to all I am sought for, but my continued death brings wealth for all to want more.
I can only be played on a windy day
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?