Answer:
Brown I am and much admired. Many horses have I tried. Tire a horse and worry a man, tell me this riddle if you can. What am I?
I can point in every direction but can't reach the destination by myself. What am I?
What has a bottom at the top?
I can run but not walk. Wherever I go, thought follows close behind. What am I?
You will always find me in the past. I can be created in the present, but the future can never taint me. What am I?
What language does a billboard speak?