Answer:
If eleven plus two equals one, what is nine plus five equal to?
Dies half its life. Lives the rest. Dances without music. Breathes without breath.
Neither bought nor sold but more valuable than gold. It is built but not by hand. What is it?
Covered in stone and sun. It's home to many but also none. What is it?
I'm a god. I'm a planet. I measure heat.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?