Answer:
I am a piece of paper that takes most people 3 or 4 years to get. What am I?
I shift around though always slowly. I never move more than a few inches at a time. A large movement by me can kill many people. I am huge yet unseen by humans.
You hear me speak, for I have a hard tongue. But I cannot breathe, for I have not a lung. What am I?
I am a chair that can move. What am I?
You shoot me but I don't die. You hang me but I don't die. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?