Answer:
If a man carried my burden, he would break his back. I am not rich, but leave silver in my track.
Goes over all the hills and hollows. Bites hard, but never swallows.
What goes through a door but never goes in. And never comes out?
A dragons tooth in a mortals hand, I kill, I maim, I divide the land.
It is destruction made out of thin air, You hear it howl and give a prayer, Through barns and houses it will tear. It is a deadly funnel, Of violent and twisting air.
What never gets any wetter no matter how hard it rains?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?