'They've probably also pondered such problems as why are manhole covers round? how do they make M&Ms? what does all the ice in a hockey rink weigh? how many piano tuners are there in the world? Questions like these, which test problem-solving abilities, not specific competencies, are de rigueur at job interviews at Microsoft, other tech firms and on Wall Street.'

out of a review on william poundstone's book: "how would you move mount fuji? microsoft's cult of the puzzle - how the world's smartest company selects the most creative thinkers".