Answer:
When it comes to me you go on red and stop on green.
I am a caribbean shape that makes ships disappear
I am bought by the yard but worn by the foot. What am I?
What gets bigger the more you take away?
There is one in a minute two in a moment and none in a thousand years. What is it?
What do you purposefully put lots of in and on your body, but run away from when you encounter it outside?