Answer:
I am a mother from a family of eight. I spin around all day despite my weight. Had a ninth sibling before founding out it was fake. What am I?
What can you catch but not throw?
If two's company and three's a crowd what are four and five?
I am a protector of the scoreboard.
I will go within you and destroy you. Only because you wanted me too
No matter how little or how much you use me, you change me every month.