Answer:
I ask no questions but receive a lot of answers
I am easy to see, but no one likes looking at me. Without me, there would be no you. What am I?
I have three feet but no arms or legs
With three eyes and as black as night I frequently knock down ten men with a single strike!
When it comes to me you go on red and stop on green.
Whoever made me don't want me. Whoever bought me don't need me. Whoever use me don't know me.