Answer:
What goes in, but never through? I've got some and so do you. We might lend one, or even two, but only if our trust is true.
What can stand in place of a country but still fold away in a drawer?
Tall in the morning, short at noon, gone at night. But I'll be back soon.
What can you throw but not catch?
Who is it that rows quickly with four oars, but never comes out from under his own roof?
Dark, feathery, and popular in Baltimore and fantasy books.