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 drift forever with the current and flows to your everyday life. I make living easy but I am good at killing people too.
Glittering points that downward thrust. Sparkling spears that never rust.
I have an eye but am blind, a sea, but no water; a bee, but no honey; tea but no coffee; and a why, but no answer. What am I?
The more you take away from me the bigger I shall get.
I have a ring but no fingers. I used to stay still all the time but nowadays I follow you around.