Answer:
You can catch me but cannot throw me.
I am perfect with a head perfect without a head; Perfect with a tail perfect without a tail; Perfect with either neither or both.
I regularly change shape yet remain a sphere. I am always there but not often seen. What am I?
What is the beginning of eternity the end of time and space the beginning of every end and the end of every race?
I have 4 wings but cannot fly. I never laugh and never cry. On the same spot I'm always found toiling away with little sound. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?