Answer:
I fly away as soon as you set me loose. People around you may slowly move away once they sense my presence.
A dragon's tooth in a mortal's hand, I kill, I maim, I divide the land.
I have roots nobody sees. I am taller than trees. Up, up I go but I never grow. What am I?
I'm many people's favorite place even though many don't remember their stay. You'll love to come but hate to leave if you get cold use my sleeves.
I am black within and red without; with four corners round about. What am I?
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.