Answer:
Fashions change, but what can a person wear that is never out of style?
You can drop me from the tallest building and I’ll be fine, but if you drop me in water I die. What am I?
Who keeps the ocean clean?
I ask no questions but receive a lot of answers. What am I?
I may only be given but never bought. Sinners seek me but saints do not. (one word).
I am your mother's brother's only brother in law. Who am I?