Answer:
Lighter than what I am made of, more of me is hidden than is seen. What am I?
I am cracked by Indiana Jones.
What is always coming but never arrives?
Good memory, skin like the sea. A great beast I am, yet vermin frightens me. What am I?
I am a seven letter word. I am very heavy. Take away two letters from me and you will get eight. Take away one letter from me and you will get 80. What word am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.