Answer:
In the evening I'm long, in the morning I'm smallΝΎ When seen in a ballroom, I'm nothing at all.
What has three ways out and just one way in?
My second is performed by my first, and it is thought a thief by the marks of my whole might be caught.
Many have heard it, but nobody has ever seen it. It will not speak until spoken to. What is it?
Describes universities like Harvard and can be poisonous.
What covers its face with its hands, speaks no language, yet most known what it's saying?