{"title":"Dick Hess","description":null,"products":[{"product_id":"mental-gymnastics-book-dick-hess-9780486480541","title":"Mental Gymnastics","description":"Ready for a challenge? These puzzles offer a workout for your mathematical thinking processes along with your aptitude for logic and insight and your grasp of geometrical and analytical concepts. They'll test your perseverance, too  Suitable for dedicated puzzlists ages 12 and older, these 123 brainteasers vary in difficulty, ranging from playful puzzles involving games to tough questions of probability. Complete solutions appear at the end.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49559258005777,"sku":"GOR008717656","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ GOOD \/ SBYB","offer_id":49892108108049,"sku":"CIN0486480542G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50174538449169,"sku":"CIN0486480542VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"GB \/ LIKE_NEW \/ INTERNAL","offer_id":51561558049041,"sku":"GOR014328920","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0486480542.jpg?v=1751007292"},{"product_id":"golf-on-the-moon-book-dick-hess-9780486497389","title":"Golf on the Moon","description":"\u003cp\u003eDivide a rectangular cake into five even pieces, calculate the cost of running a successful casino, figure out the maximum number of losses on the road to winning the U.S. Open Tennis Championship, and solve other amusing and challenging puzzles--including a mathematical brainteaser involving a couple of holes of golf on the surface of the moon.\u003cbr\u003eIn addition to logical puzzles and mathematical paradoxes, this original collection features a variety of word problems and sports-related riddles. The puzzles, which vary in complexity from playful propositions to tough mathematical conundrums, are suitable for ages 12 and up. Detailed solutions appear at the end. \u003cbr\u003eDover (2014) original publication.\u003cbr\u003eSee every Dover book in print at\u003cbr\u003e\u003cb\u003ewww.doverpublications.com\u003c\/b\u003e\u003c\/p\u003e","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49594958709009,"sku":"GOR008856866","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":49635036365073,"sku":"GOR010688133","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":49938981552401,"sku":"CIN0486497380G","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50771728564497,"sku":"CIN0486497380VG","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0486497380.jpg?v=1751424712"},{"product_id":"dorfsman-cbs-book-dick-hess-9780847808649","title":"Dorfsman \u0026 Cbs","description":null,"brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":50463113478417,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ GOOD \/ SBYB","offer_id":50463114592529,"sku":"CIN0847808645G","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/0847808645.jpg?v=1750883313"},{"product_id":"number-crunching-math-puzzles-book-dick-hess-9781454909743","title":"Number-Crunching Math Puzzles","description":"Are you sharp enough to solve these devious mind-bogglers?  These diverting number, geometric, logic, analytical, and story problems--which vary in difficulty from pleasantly puzzling to chew-your-pencil challenging--will test your smarts. Math conundrum connoisseurs will treasure this collection, and everyone who loves a good puzzle will feel a sense of accomplishment by the end of the book.","brand":"WoB","offers":[{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":50498446360849,"sku":"CIN1454909749VG","price":0.0,"currency_code":"GBP","in_stock":false},{"title":"US \/ GOOD \/ SBYB","offer_id":50764041814289,"sku":"CIN1454909749G","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1454909749.jpg?v=1751084999"},{"product_id":"all-star-mathlete-puzzles-book-dick-hess-9781402755286","title":"All-star Mathlete Puzzles","description":"Puzzle collections are ubiquitous. This title gathers together the author's favourites which includes number puzzles, geometric puzzles, logic puzzles, analytical puzzles, and story puzzles. It is suitable for those who love a good puzzle.","brand":"WoB","offers":[{"title":"- \/ - \/ -","offer_id":51329628078353,"sku":"","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"US \/ VERY_GOOD \/ SBYB","offer_id":51329630503185,"sku":"CIN1402755287VG","price":0.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1402755287.jpg?v=1751402503"}],"url":"https:\/\/www.worldofbooks.com\/en-gb\/collections\/author-books-by-dick-hess.oembed","provider":"World of Books ","version":"1.0","type":"link"}