Answer:
I am a protector. I sit on a bridge. One person can see right through me, while others wonder what I hide. What am I?
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 am a word. I become longer when the third letter is removed.
If you're looking for something sweet I know what to do. But if you don't like heat I'm not for you.
Wind and cord combine, buzzing in the box. In all this we find, though to some the use is lost. What am I?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?