Three eyes have I, all in a row; when the red one opens, all freeze - traffic light... What is so fragile that when you say its name it breaks? - silence... I have a head and a tail but no body, i am NOT a snake- coin... What fall but does not break, what breaks but does not fall - night falls, day breaks... I am weightless but you can see me, put me in a bucket and ill make it lighter, what am i? - hole