Andrew the Assured, Brian the Big, Casey the Careful, Dootles the Dreamy and Edwina the Eager are all members of a reading club, ‘The Burping Bookworms’. They have a bizarre rule in the club: for each 5-person group, they must read 5 books in week, but in a special way–after they finish reading each book [...]
Arthur has invented a new puzzle to show his friends. He calls it: Arithmogons. He draws the following diagram first. Then he puts any three integers he likes in the circles. In the squares he puts the sum of whatever two integers appear on the ends of the corresponding side. Before showing this to a friend, [...]