Answer:
I have three feet but no arms or legs
You find me behind the stars; or in a sixth seventh or third. It takes something round a computer and me to make pie. I am bigger than anything you can think of.
When it comes to me, you go on red and stop on green. What am I?
I have to be broken before I can be used
I am found on Mercury Venus Earth and Mars but not on Jupiter or Saturn. What am I?
I flow from the Homerβs mouth when he sees doughnuts.