{"product_id":"9781802791884-mensas-most-difficult-number-puzzles-prove-your-logical-and","title":"Mensa's Most Difficult Number Puzzles: Prove your logical and","description":"\u003cp\u003eProve your logical and arithmetical prowess by solving the exceptionally tricky problems in Mensa's Most Difficult Number Puzzles.  This full-colour book features a huge variety of numerical conundrums that are certain to test even the most adept of puzzlers. Some puzzles   such as sum skyscraper and calcudoku   will test your mental maths, while others   such as touchy and bridges   will provide a trial for your logical and lateral thinking. Are you up to the fiendish challenge?\u003c\/p\u003e","brand":"Book Grocer","offers":[{"title":"Default Title","offer_id":48584521089243,"sku":"9781802791884","price":17.5,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/7646\/9701\/files\/199d134a-178c-455f-9a9c-c3e8e08a4571.jpg?v=1775841708","url":"https:\/\/bookgrocer.com\/products\/9781802791884-mensas-most-difficult-number-puzzles-prove-your-logical-and","provider":"Book Grocer","version":"1.0","type":"link"}