{"product_id":"mensa-number-puzzle-book-book-mensa-ltd-9781787391529","title":"The Mensa Number Puzzle Book","description":"For as long as civilizations have known how to ascribe numerical values to quantities, there have been number puzzles; ancient Egyptian scrolls have been found with difficult problems for the reader to solve. Now Mensa, the leading high IQ society, have created a book which will challenge even the most adept puzzle-solver.   A wide variety of puzzle types have been included from societies around the world in The Mensa Number Puzzle Book. Many include a historical introduction and advice on how to solve them from Mensa's top puzzle-setters.","brand":"WoB","offers":[{"title":"GB \/ VERY_GOOD \/ INTERNAL","offer_id":49527467114769,"sku":"GOR009810025","price":3.9,"currency_code":"GBP","in_stock":true},{"title":"GB \/ GOOD \/ INTERNAL","offer_id":49561293914385,"sku":"GOR010007355","price":3.7,"currency_code":"GBP","in_stock":true},{"title":"GB \/ LIKE_NEW \/ INTERNAL","offer_id":53376514130193,"sku":"GOR012383122","price":4.1,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0784\/4072\/6801\/files\/1787391523.jpg?v=1750897935","url":"https:\/\/www.worldofbooks.com\/en-gb\/products\/mensa-number-puzzle-book-book-mensa-ltd-9781787391529","provider":"World of Books ","version":"1.0","type":"link"}