Answer:
Where humans breath liquid?
I am whole but incomplete. I have no eyes, yet I see. You can see, and see right through me. My largest part is one fourth of what I once was.
What is often returned, but never borrowed/
I can be short and sometimes hot. When displayed, I rarely impress.
All about the house, with his lady he dances, yet he always works, and never romances.
According to the music industry, you can count on a midnight train and the devil to turn up here.