Loner (7/11/2008)
There are two rooms separating by a wall, one room has three lamps, the one one has three switches, can you tell how to find out which switch is for which lamp if you only allow to look at other room once. (Question from Bill Gates, he said if anyone can answer this question in five minutes, he would hire that person.) So far I asked many people this question, only one guy could answer this question within 5 minutes, he was a geek though.
Judging by all the idiots that answered that question successfully that I've seen get hired over the years and still can't write SQL without cursors, while loops, and CLRs, I'd say that those types of questions are totally useless. If you want to find out how they think when programming... ask them some SQL questions...
... and see if the geek know's how to do it with 4 or even 5 lights 😉
--Jeff Moden
Change is inevitable... Change for the better is not.