Author(s): Boris A. Kordemsky
A non-stop train leaves Moscow for Leningrad at 60 miles per hour. Another train leaves Leningrad for Moscow at 40 miles per hour. How far apart are the trains one hour before they pass each other? A man has to row a wolf, a goat and some cabbage across a river in a boat which will only hold himself and one of the three. If he leaves them alone, the wolf will eat the goat and the goat will eat the cabbage. How does he get them across? These and dozens of other problems of maths, logic and common sense appear in this classic Russian puzzle book, first published in 1956. Warm, charming and lavishly illustrated with over 400 diagrams and sketches, The Moscow Puzzles offers countless hours of entertainment for puzzle lovers of all abilities.
Boris A. Kordemsky PhD (1907 - 1999) was a Russian mathematician and educator. He is best known for his popular science books and mathematical puzzles, writing over 70 books in the course of his lifetime.