What do you call a community of paper with an organized system of government?
Ruled

How can you tell a homeless piece of paper?
High rag content

What might British people call a ball of unwanted paper?
A tosser

A piece of paper walks into a bar.  The bartender says, "You look parched."

A couple is eating dessert in a restaurant.  A piece of paper walks up to the table and says, "Hi, I'm Bill."

What's a piece of paper's favorite underwear?  A slip.