Answer:
Long and thin red within with a nail at the end.
Sometimes I am white, sometimes I am dark. Most people love me. What am I?
Poor people have it. Rich people need it. If you eat it you die. What is it?
I can be cracked made told and played. 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.
A little house full of meat, no door to go in and eat.