Answer:
Good memory, skin like the sea. A great beast I am, yet vermin frightens me. What am I?
Some people avoid me some people count me some people just consume me
The shorter I am, the bigger I am. What am I?
Against the sun I protect your eyes and am often worn on the face of spies
I never was but always will be. No one ever saw me but everyone knows I exist. I give people the motivation to better themselves every day. What am I?
It has no top or bottom, but it can hold flesh, bones, and blood all at the same time.