Answer:
Good memory, skin like the sea. A great beast I am, yet vermin frightens me. What am I?
If I drink, I die. If I eat, I am fine. What am I?
He has married many women, but has never been married. Who is he?
I'm very tempting so its said I have a shiny coat of red and my flesh is white beneath. I smell so sweet taste good to eat and help to guard your teeth.
I hide in a dark tunnel awaiting my time. I can only be released by pulling back. Once released I may do unstoppable damage.
What is lighter than what it is made of?