Answer:
What is it that you must give before you can keep it.
You must keep this thing. Its loss will affect your brothers. For once yours is lost, it will soon be lost by others.
I am so simple that I can only point. Yet I guide men all over the world.
This is in a realm of true and in a realm false, but you experience me as you turn and toss.
What do you throw out to use and take in when you're done?
If itβs information you seek, come and see me. If itβs pairs of letters you need, I have consecutively three. What am I?