Answer:
White fat and fluffy, May even look like a puppy. Seems heavy but is light, Floats about without a worry, But if it turns dark you have to hurry!
I am mother and father, but never birth or nurse. I'm rarely still, but I never wander.
It's a game played by serious people that takes place on a global scale.
I am the yellow hem of the sea's blue skirt.
A hill full, a hole full, yet you cannot catch a bowl full.
Dry though I may be, I am still a sea.
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?