Answer:
What can be forever wound up but never annoyed?
Where do you go in through one hole and come out through two holes at the same time?
The higher I climb, the hotter I engage. I cannot escape from my crystal cage.
Iron roof, glass walls, burns and burns and never falls.
They're up near the sky, on something very tall. Sometimes they die, only then do they fall.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?