March 18, 2013 by Nirupam Biswas Why we don’t hire programmers based on puzzles, API quizzes, math riddles, or other parlor tricks by David of 37signals Regulars 2 Comments Why don’t hiring managers follow this? People do lack common sense. Why we don’t hire programmers based on puzzles, API quizzes, math riddles, or other parlor tricks by David of 37signals.