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?
Adored by few, feared and hated by many. Mistress of the entire universal reason, master in the art of numbers. Some may have solved many of my mysteries, but there are still many of them to find. What am I?
I give people a huge fright, but at the end I'm sweet. I normally celebrate at night, when there's less heat. What am I?
I'm really blue but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt.
I describe a toilet cleaner as well as one of Santa's reindeer
What is lighter than what it is made of?