Answer:
A locked sphere without hinges or key. Break me open and golden treasures you'll see
What has a foot but no legs?
A girl was ten on her last birthday, and will be twelve on her next birthday. How is this possible?
What never ends but you always have it
Dragons are known to do this to their gold.
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?