Answer:
I am so simple that I can only point. Yet I guide men all over the world.
It is by nature, soft as silk; A puffy cloud, white as milk; Snow tops this tropical crop; The dirtiest part of a mop
What always runs but never walks, often murmurs, never talks, has a bed but never sleeps, has a mouth but never eats?
I am two-faced but bear only one. I have no legs but travel widely. Men spill much blood over me. Kings leave their imprint on me. I have greatest power when given away, yet lust for me keeps me locked away.
What lies in a tunnel of darkness. That can only attack when pulled back?
What is so fragile that saying its name breaks it?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?