Answer:
I have three hundred cattle, with a single nose cord
The root tops the trunk on this backward thing, that grows in the winter and dies in the spring.
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see.
Take one out and scratch my head I am now black but once was red.
The eight of us move forth and back. To protect our king from the foes attack.
What goes up the hill and down the hill, And spite of all, yet stand still?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?