Answer:
When it comes to me, you go on red and stops on green. What am I?
I am a protector of the scoreboard.
Fatherless and motherless. I was born without sin. Roared when I came into the world, but I never spoke again. What am I?
Can not be bought, Can not be sold, Even if it's made of gold. What is it?
I'm blue, but when you see me I'm red. You don't see me too often. I'm there for you if you're hurt, but I'm good for you. What am I?
The answer I give is yes, but what I mean is no. What was the question?