Answer:
What gets wetter as it dries?
A precious fluid, thicker than water.
Salty water everywhere but not sea in sight.
A beggar's brother went out to sea and drowned. But the man who drowned had no brother. Who was the beggar to the man who drowned?
The sharp slim blade, that cuts the wind. What is it?
I'm the source of all emotion but I'm caged in a white prison.