The Scotsman - Top Stories - The three questions that will show how clever (or not) you really are Interesting how obsessed how people can be at quick ways to judge people's "intelligence." One would think that there's a lot more in finding the right person for a job than whether or not one can solve simple logical problems. Ah, well... On the other hand, those questions bankers seem to ask of job applicants (with the infamous "how many pingpong balls would fit in an Airbus 330") are more interesting because they have more to do about process and access to information (you're allowed to ask questions) than about accuracy of the answer. FWIW, did think about the correct answer but that's probably just because it was mentioned in a mailing-list with a mention of the incorrect answer. In fact, like all bar tricks, they work only when you catch people unprepared.