Answer:
What does everyone know how to open but not how to close?
A type of hammer that brings a room to order.
The more of them you take, the more you leave behind. What are they?
The eight of us move forth and back. To protect our king from the foes attack.
Has no feet, but travels far. Is literate, but not a scholar. Has no mouth, yet clearly speaks.
I can only be played on a windy day