Answer:
Part carbon part water I am poison to the fishes. Many falsely claim my name I am the pause that refreshes.
You turn me over after you have travelled far.
I stink up your breath and fights evil vampires
A dagger thrust at my own heart dictates the way I'm swayed. Left I stand and right I yield to the twisting of the blade. What am I?
Soft, hairy, from door to door. I am the pet that always stays on the floor. What am I?
Keep doing me to avoid lens dryness