Answer:
I regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
The faster you run the harder it is to catch me
My seas have no water, my mountains have no rock, and my land has no grass. What am I?
My head bobs lazily in the sun. You think I'm cute, for my face is yellow, my hair is white and my body is green. What am I?
You can see me in water, but I never get wet. What am I?
What did the piece of wood say when he saw the screwdriver and screws approaching?