August 30, 2006 1:20am CST
This should not be too hard. "Say my name and I will disappear, what am I?"
• Sri Lanka
8 Jan 07
There must be a standard answer to this but I would like to point out that the word "Burglar" can be like this. If you see a burglar inthe house, and shout burglar then he will disappear. But when you shout "Silence" you can see the silence in front of you. Silence disappears only when there is noise.