Puzzles and quizzes

From Sam Jordison, author of the bestselling Crap Towns series, comes I-SPY for Grown-ups.

Our brains need a well-rounded workout just like our bodies!

Who invented the pub quiz?

This collection of 140 intriguing and challenging codebreaking puzzles are produced in association with the Bletchley Park Trust.

From Sam Jordison, author of the bestselling Crap Towns series, comes I-SPY for Grown-ups.

A collection fascinating, hilarious, brilliantly odd lists full of fun facts.

A quirky guide to counting the calories as they come off, through ways you may never have considered possibleExactly how long would you have to kiss in order to burn off a bottle of beer?

This entertaining compendium of bite-sized articles reveals the stranger-than-sci-fi world of strange science.

From the ice-age recordings of moon cycles and the earliest calendars, to modern wristwatches and quantum clocks, time and its effects have always enthralled mankind.

Pit your wits against the greatest detective of them all with this collection of fiendish and hugely entertaining puzzles and enigmas.

"e;I became insane, with long intervals of horrible sanity.

Travel with Alice down the rabbit hole into the fantastic world of Wonderland, and help a cast of extraordinary characters solve these tantalising puzzles and enigmas.

When Mitchell Symons wrote his extraordinary bestsellers This Book, That Book and The Other Book - all neatly combined in one sensational volume, The Ultimate Loo Book - he was judged by many to be the King of Trivia.

Are you a Bosom Caresser or a Harvey Wallbanger?

"e;Some books are unreservedly forgotten; none are unreservedly remembered.

All the fun of Portico's bestselling Strangest series, now in quiz form!