Traffic lights? Cuz when they change they Blink and it tells you to walk or stahp. Also you stare at them, dunno bout the three eyes though, seeing as Lights that tell you to walk have 2 Signs >.<
A man has 3 things he needs to. He needs to light a fire to cook, a fire to heat his bath and a fire fo his lantern. However he only has 1 match. What does he light first?