Answer:
I have an eye but cannot see, You'll head inside when you see me.
Always old, sometimes new. Never sad, sometimes blue. Never empty, sometimes full. Never pushes, always pulls.
What can be swallowed, But can also swallow you?
Where humans breath liquid?
In the evening I'm long, in the morning I'm smallΝΎ When seen in a ballroom, I'm nothing at all.
What never gets any wetter no matter how hard it rains?