Brain Teaser 3

Teaser 1: Feed me and I live, yet give me a drink and I die.

Teaser 2: Forward I am heavy, but backward I am not. What am I?

Teaser 3: He has married many women, but has never been married. Who is he?

Teaser 4: Take off my skin – I won’t cry, but you will! What am I?

Teaser 5: Imagine you are in a dark room. How do you get out?