adamba writes: "Why are manhole covers round?" "How many gas stations are there in the United States?" "How would you design a remote control for venetian blinds?" "What company is famous for interview questions like those?" You might not know the answer to the first three questions, but you probably know the last one. The notion of asking "Microsoft interview questions," quick logic puzzles and brainteasers, has become accepted wisdom for many technology companies. In comparison, the questions asked during traditional interviews, such as "Describe your typical day" and "What is your greatest weakness?" seem too simplistic, too easy to handle with a prepared answer, too prone to allowing weak candidates to slip through: they simply don't reveal enough about the person. While the Microsoft questions appear to be a better way to evaluate people, the issue has never really been seriously examined. Microsoft's success would seem to make the argument pointless: Can $250 billion in market capitalization be wrong?" Read on for an interesting look at the details and justifications for this kind of interview.