Which major UK retailer has the same name as Odysseus's dog in Greek mythology? In the original version of the Band Aid hit 'Do They Know It's Christmas?', who sang the opening line? Which is the only US state whose name can be typed on a single row of a QWERTY keyboard? Travel writer and quiz fan Mark Mason decided to combine two of his greatest loves by setting off on a tour of Britain's quizzes. From a pub quiz in Edinburgh to a charity quiz in Hampshire, from a corporate quiz in Birmingham to a journalists' quiz in Parliament, he finds answers aplenty while asking some questions of his own.