Answer:
I am a daily ritual involving using a metal tool on the body
What body part is pronounced as one letter, but written with three, only two different letters are used?
When it comes to me you go on red and stop on green.
In a tunnel of darkness lies a beast of iron. I can only attack when pulled back. What am I?
I can be in your body but never on your placemat. I'm always better when I'm fresh, but you'll never see me in the flesh. What am I?
I flow from the Homerβs mouth when he sees doughnuts.