Answer:
What can be drawn but never taken?
I build up castles. I tear down mountains. I make some men blind, I help others to see. What am I?
What is light as a feather but even the strongest man cannot hold it for more than a few minutes?
What has banks but no money a bed but no sleep waves but no ocean?
I am heavy forward but backward I'm not.
How do you know if a sniper likes you?