The famed International Mathematical Olympiad has been challenging students worldwide for over 40 years. Since the first competition in Romania in 1959 - with only seven countries participating - it has expanded to attract competitors from over 80 countries, representing all five continents. This first volume features every question from 1959–75, along with comprehensive solutions and multiple answers where applicable. A fantastic selection of mathematical puzzles, this fully updated three volume series will be of interest to serious mathematicians and enthusiasts alike. Istvan Reiman’s compilation of logic puzzles and questions will tease the intellect of all those with a mathematical mind.