Answer:
Four fingers and a thumb, yet flesh and blood I have none. What am I?
You use a knife to slice my head and weep beside me when I am dead.
I belong to everyone. Sometimes make you happy sometimes make you sad. I will never end until the day you do.
So simple, that I can only point. Yet I guide men all over the world.
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
If a rooster lays an egg on the exact peak of a barn, which side does it fall?