Answer:
What do you call a three humped camel?
So simple, that I can only point. Yet I guide men all over the world.
My first two letters say my name. My last letter asks a question. What I embrace I destroy.
What do you call a bear with no teeth?
I'm as simple as a circle worthless as a leader; but when I follow a group their strength increases tenfold. By myself I'm practically nothing.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.