Answer:
A locked sphere without hinges or key. Break me open and golden treasures you'll see
What is really easy to get into but really hard to get out of
What asks no questions but requires many answers?
Santa's favorite entrance for home invasion
It breathes fire in fairy-tales
I never sleep yet sometimes I weep. I can get angry or just be happy. Wherever you go, I will follow. No matter what you do, I will be there. I cannot die. What am I?