Microsoft is famous in the hiring world for using brainteasers to identify creative problem solvers as part of its interview process: How would you move Mount Fuji? How would you weigh a jet plane without scales? Which way should the key turn to unlock a car door? How do they make M&Ms? Why are manhole covers round rather than square?
Many other companies have started using similar puzzles. Some combine brainteasers with stress tests. One Wall Street investment bank begins interviews by brandishing an air pistol and inviting the candidate to play a game of Russian roulette. The idea behind all of the questions is to see how you deal with difficult situations and impossible questions. Read complete blog post.