Sharpen your pencil and get ready to boost your brain with this brand-new numbers game. To solve each puzzle, fill the 16 cells with the numbers 1 to 16 using each number only once. Each puzzle has just one solution, and uses math you learned in grade school: addition, subtraction, multiplication, and division. The games, which all call for logic, imaginative thinking, intuitive elimination, and sheer persistence, are grouped in three categories, and range from relatively simple to super-challenging. The author's spirited instructions and sample puzzles walk you through the basics; clues for some puzzles provide what might be necessary encouragement. With 14 bonus puzzles aimed at children and those who want to start with the ultra-easy, these 150 puzzles will keep you thinking whether you're a student honing your math skills, a puzzle-lover looking for a challenge, or someone who just wants to get those brain synapses snapping!

A NEW day-of-the-week series with 100 puzzles in a convenient portable paperback package New York Times crossword solvers know the Tuesday puzzles are a little bit tougher than the Monday puzzles, but still easy enough to solve without having to reach for the migraine medication. This collection of 100 Tuesday puzzles is just what the doctor ordered. Features: -100 easy Tuesday puzzles -Bold, fun series cover design -Edited by crossword legend Will Shortz

The Wendy Gold USA State Flowers 1000 Piece Puzzle from Galison features an illustration by bestselling artist Wendy Gold of the United States of America with each state's flower positioned geographically on the map. Galison puzzles are packaged in matte-finish sturdy boxes, perfect for gifting, reuse, and storage. * 1000 Pieces, Ribbon Cut * Puzzle: 20 x 27", 508 x 686mm * Box: 8.25 x 11.25 x 2", 210 x 286 x 51mm * Contains informational insert about artist and state flower identification * Minimal Puzzle Dust

You are Sherlock Holmes... at home at 221b Baker Street, when a mysterious letter is posted through your door. What is the meaning of the message cut from newsprint? Is there a clue hidden in the letters? Could there be more to discover in the fog-bound alleys of London town? This ingenious new series is a spin on the current urban craze for 'Escape Rooms', in which participants are locked in rooms, and must solve the puzzles they find there to make good their escape. Here, the book becomes the locked room, the pages become the path, and the reader can take on a challenge every bit as brain-teasing from the comfort of their own home. Visual clues are hidden among the intriguing illustrations; fiendish riddles, logic puzzles, and timed challenges unlock hidden doors and reveal the direction of travel; and mathematical problems provide the codes required to follow the correct path. There are maps and mazes to explore; references to the original Sherlock Holmes adventures to unravel; and a code-wheel that holds the key to unlocking the next page. Solve the puzzles correctly to escape. Get them wrong, and you will find yourself further and further along the path to your own demise.

Part of an exciting series of sturdy, square-box 1000-piece jigsaw puzzles from Flame Tree, featuring powerful and popular works of art. This new jigsaw will satisfy your need for a challenge, featuring Aimee Stewart's Fantastic Voyage. This 1000 piece jigsaw is intended for adults and children over 13 years. Not suitable for children under 3 years due to small parts. Finished Jigsaw size 735 x 510mm/29 x 20 ins. Now includes an A4 poster for reference. Aimee Stewart is a self-taught artist, photographer and writer who has been blurring the lines between digital and traditional art since 2005. She is strongly influenced by music and literature. Her special focus is in eclectic digital painting and photomanipulation - she takes components from old photographs and manipulates them into elements that complement her work perfectly. Aimee describes herself as a champion of daydreams; she loses thoughts of reality and becomes immersed in fantasy creations, as can be seen in this beautiful, steampunk and nostalgic illustration.

Some questions you never think to ask. Others, you didn't know you didn't know. And some facts are so surprising they cry out for answers.

What can a president actually do? Why do cities sink into the ground? Why is Australia seemingly invulnerable to recessions? Why do people in couples do more housework than singletons? The brilliant minds of the Economist collect these questions. Individually, they might seem bite-sized and inconsequential, but taken together they can reveal a whole new world.

Collected over several years by Peter Winkler, of Bell Labs, dozens of elegant, intriguing challenges are presented in Mathematical Puzzles. The answers are easy to explain, but without this book, devilishly hard to find. Creative reasoning is the key to these puzzles. No involved computation or higher mathematics is necessary, but your ability to construct a mathematical proof will be severly tested--even if you are a professional mathematician. For the truly adventurous, there is even a chapter on unsolved puzzles.

Part of an exciting series of sturdy, square-box 500-piece jigsaw puzzles from Flame Tree, featuring powerful and popular works of art. This new jigsaw will satisfy your need for a challenge, with the beautiful Swans Flying over the Reeds by Robert Gillmor. This 500-piece jigsaw is intended for adults and children over 13 years. Not suitable for children under 3 years due to small parts. Finished Jigsaw size 490 x 360mm/19.3 x 14.2 ins. Includes an A4 poster for reference. One of the UK's best-known wildlife artists, Robert Gillmor MBE is also an ornithologist, illustrator, author, and editor, not to mention founder member of the Society of Wildlife artists. He has illustrated over 150 books, designed a series of stamps for Royal Mail, and helped to create the RSPB's logo. Gillmor received the RSPB Medal in 2001, and in 2015 was awarded an MBE for his services to art and conservation.

A colorful collection of iconic and quirky vintage cookbook covers from artist and illustrator Richard Baker, a visual feast of a puzzle for bibliophiles and foodies alike. Piece together your own colorful collection of vintage cookbook covers! Classic Cookbooks 1000-Piece Puzzle features artist Richard Baker's amazing paintings of beloved real cookbooks, both iconic like The Joy of Cooking, Mastering the French Kitchen, and The Dooky Chase Cookbook and quirky, like Fabulous Fondues and Love & Knishes. Each book portrait captures the telltale signs of wear from years in the kitchen. The perfect gift for foodies, home chefs, book lovers and collectors everywhere.

Part of an exciting series of sturdy, square-box 1000-piece jigsaw puzzles from Flame Tree, featuring powerful and popular works of art. This new jigsaw will satisfy your need for a challenge, featuring artist Nel Whatmore's "A Million Shades". This 1000 piece jigsaw is intended for adults and children over 13 years. Not suitable for children under 3 years due to small parts. Now includes an A4 poster for reference. Nel Whatmore is a fine artist, well known for her floral paintings and abstracts. As with many of her paintings, A Million Shades was built up over several months, until Nel was happy with the final piece. A contemporary colourist, her paintings are both expressionist and evocative. She seeks t o constantly explore mediums and their ability to convey emotion. Her work i s varied, with landscapes and skyscapes featuring alongside still life and floral works, which encapsulate her interest in expressionist painting. She expresses her love of flowers not only through her fine art, but also her textile designs, and regularly exhibits her work at the Chelsea Flower Show.

We need to exercise our bodies to keep fit and the same is true for our brains. After all, what's good for your gut, your cardiovascular system, and your muscles, is good for your brain - it's all connected. This definitive mental workout will show you how to build up your brain's agility and enable you to solve problems faster and better. Perfect for anyone wanting to get their grey matter moving and improve their brain power, once and for all. The Brain Fitness Puzzle Book is an authoritative training regime for anyone wanting to get to grips with their brain and have fun whilst improving its power. Put your brain through its paces with over 80 puzzles, these varied puzzles will help you improve everything from logic and reasoning, creativity, visual and lateral thinking and concentration, and much more. Learn how to stretch your brain muscles and get your grey matter moving by following the comprehensive workout - structured to imitate a physical exercise session, with a warm-up, ramping up phase, high-intensity 'cardio' challenge, and a cool-down. Get ready to be pushed to your limits as million-copy bestselling author Dr Gareth Moore and University of Cambridge's Memory Laboratory expert, Helena M. Gellersen, show you how to put your brain to the test. Explaining the science behind the puzzles, and packed with tips and tricks throughout, this guided puzzle book is perfect for anyone wanting to improve their brain power but not quite sure where to start.

Kakuro is the next hot puzzle craze, and everyone can give it a try with this new, multilevel series. These language-free number puzzles use pure logic and require just simple arithmetic to solve. So, in addition to being fun, they help develop your powers of deduction and reasoning. Beginners can get started - and more experienced solvers hone their skills - with these perfectly tiered "belt" books, each containing 150 kakuros. They take their cue from the belt colors in martial arts: white is for novices, green for intermediates, brown for very accomplished players, and black for those consummate experts who crave a challenge.

'I find it impossible to believe you will not love this book' - Daniel Radcliffe The Ministry of Quizzes is the must-buy gift book for quiz solvers and puzzlers, from David Gentle, author of On the Tip of My Tongue. Perfect for fans of the GCHQ Puzzle Book, Bletchley Park Brainteasers, and The Ordnance Survey Puzzle Book. Deep in the heart of Whitehall, up an unnoticeable side road, is an office block. Unremarkable on the outside, inside it buzzes and bustles with activity. Civil servants are hard at work, researching, compiling, cross-checking. Facts and trivia, questions and puzzles. This is the Ministry of Quizzes. This small but essential government department serves the nation's needs on all matters relating to quizzes, puzzles and general knowledge trivia. Now, for the first time, their work can be revealed. The Ministry of Quizzes features an ingenious and irresistible mixture of over 200 quizzes and puzzles to be played solo or with family and friends. Not everyone is convinced this government department actually exists. But how else could we explain such a copious and comprehensive collection of diverse, devious and distracting questions and brainteasers?

Piece together the world of Freddie Mercury in this jigsaw puzzle that tells the story of his life and songs. From his childhood in Zanzibar and England to his meteoric rise to rock stardom with Queen and his tragic death from AIDS, there's a galaxy of stars, friends, lovers and cats to explore. Discover why Freddie Mercury remains the Champion of the World.

200 of the easiest New York Times crossword puzzles, perfect for beginners Why stress out when you could take it easy? Here's another great big volume of easy breezy New York Times crossword puzzles to pass the time. Like its popular predecessors, this collection features: - 200 Monday and Tuesday puzzles - The easiest crosswords published in The New York Times - Big grids for easy solving

The #1 New York Times bestselling author of What If? and How To answers more of the weirdest questions you never thought to ask.

The millions of people around the world who read and loved What If? still have questions, and those questions are getting stranger. Thank goodness xkcd creator Randall Munroe is here to help. Planning to ride a fire pole from the Moon back to Earth? The hardest part is sticking the landing. Hoping to cool the atmosphere by opening everyone’s freezer door at the same time? Maybe it’s time for a brief introduction to thermodynamics. Want to know what would happen if you rode a helicopter blade, built a billion-story building, made a lava lamp out of lava, or jumped on a geyser as it erupted? Okay, if you insist.

Before you go on a cosmic road trip, feed the residents of New York City to a T. rex, or fill every church with bananas, be sure to consult this practical guide for impractical ideas. Unfazed by absurdity, Munroe consults the latest research on everything from swing-set physics to airliner catapult–design to answer his readers’ questions, clearly and concisely, with illuminating and occasionally terrifying illustrations. As he consistently demonstrates, you can learn a lot from examining how the world might work in very specific extreme circumstances.

Gray Malin's awe-inspiring aerial photographs are shot from doorless helicopters, creating stunning celebrations of natural form, color, and repetition. This two-sided puzzle features a majestic mountainside ski-slope and skiers on one side and an array of rainbow hues decorating the crisp white snow of a luxury ski resort on the other side.

Put your Liverpool knowledge to the test with the ultimate quiz book for Reds fans. Do you think you know it all about Liverpool? Could you name the starting line-up in 2005 Champions League final? The most decorated player in the club's history? Do you know which sides Liverpool have beaten most, and vice versa? Or which game drew the Reds' biggest-ever crowd? Whatever your area of interest or depth of knowledge, this expertly assembled quiz will have some testing questions for you. From the club's earliest days to the glory years of Bill Shankly and Bob Paisley, the renaissance under Jurgen Klopp and beyond, Think You Know It All? Liverpool will challenge your knowledge of the iconic team's players, managers, records and more. Featuring an entertaining mix of questions and puzzles, this is the perfect test for new and veteran LFC fans alike. Proving you know it all about your club has never been such fun - or so tricky.