Answer:
What has to be broken before you can use it?
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. What am I?
What goes around the wood but never goes into the wood?
What kind of dog keeps the best time?
I may be of the eye, in order I am pie. In my center there is a star, I keep medics where they are. What am I?
Written on with words of white, Has the color of the night, Is the teacher's best delight, And a student's daily fright