Answer:
A type of hammer that brings a room to order.
What goes in the water black and comes out red?
Thousands lay up gold within this house, But no man made it. Spears past counting guard this house, But no man wards it.
What can you share and still have all for yourself?
I am round as a bowl, deep as a tub, but all the world's water couldn't fill me up.
What is so fragile that saying its name breaks it?