Answer:
You must keep this thing. Its loss will affect your brothers. For once yours is lost, it will soon be lost by others.
Bright as diamonds, Loud as thunder, Never still, A thing of wonder.
What letter comes next: O T T F F S S ?
What is often returned but is never borrowed?
Hard to catch, easy to hold. Can't be seen, unless it's cold
They are many and one, they wave and they drum, Used to cover a state, they go with you everywhere.