{"product_id":"puzzle-box-volume-3-9780486816852","title":"Puzzle Box, Volume 3","description":"\u003ci\u003eA car dealer sells two cars for $9,999 each -- one at a 10% profit, the other at a 10% loss. Overall, did the dealer make or lose money?\u003cbr\u003eHow many common words of six letters can you make from \u003c\/i\u003e\u003ci\u003e\"machine,\" \u003c\/i\u003e\u003ci\u003eusing each letter only once per word?\u003cbr\u003eRaoul asked his brother's wife's mother-in-law's only husband's only daughter to join him and his wife for lunch. What relation is she to Raoul?\u003cbr\u003e\u003c\/i\u003eDecipher hidden quotes, reposition matchsticks to form equilateral triangles, navigate complex mazes, and solve scores of other intriguing challenges with this puzzle treasury. The third in a series of collected brain-teasers, conundrums, and riddles, this volume presents a splendid variety of puzzles created by a dozen renowned mathematicians and puzzle lovers. \u003cbr\u003eThe 300 original exercises, printed in full color, include 19 different kinds of puzzles, including: 3-D puzzles, chess puzzles, connections, dissections, foldings, geometrical puzzles, logic problems, matchstick puzzles, mazes, moving pieces, number puzzles, put-togethers, strimkos, sudoku, and visual and word challenges. The difficulty level of each puzzle is marked by stars, ranging from 2 to 5; 3 stars indicate an average-level challenge. Complete solutions for every puzzle are included.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cb\u003eAbout the Author\u003c\/b\u003e\u003cbr\u003ePeter and Serhiy Grabarchuk are part of the Grabarchuk Puzzle Family. Over a period of decades they have produced puzzle books, puzzle apps, interactive puzzles, and more.\u003cbr\u003e","brand":"Dover Publications","offers":[{"title":"Default Title","offer_id":50491786068242,"sku":"9780486816852","price":11.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0831\/4771\/8930\/files\/img_a4c580ad-5eb0-4725-bda5-8a48a0b3caf1.jpg?v=1730555380","url":"https:\/\/surprise-castle.myshopify.com\/products\/puzzle-box-volume-3-9780486816852","provider":"Surprise Castle","version":"1.0","type":"link"}