Book excerpt: Every Saturday the Sun publishes a large general knowledge crossword - the Quizword. The Quizword provides a real challenge and this book brings together over 100 crosswords to tax the enthusiast. The Quizword is a sort of pub quiz in which the questions have been turned into clues. The subjects covered include music, television, sport, radio, history, geography, mythology and current affairs. Of course with a pub quiz you have to know the answers right away but with a Quizword you have the time to take up the challenge and hunt down the right answer. Just to give a flavour, here some examples of clues: BBC TV series featuring computer-generated re-creations of extinct monsters (7,4,6)Hybrid offspring of a male lion and a female tiger (5)Capital of Cameroon (7)What David Attenborough describes in his series as the Blue Planet (5)Gorgon of Greek myth, sister of Medusa and Stheno (7)Former federation of southeast Asian kingdoms that become a part of Malaysia (5,6)Pop superstar who returned to the charts in 2001 with The Music's No Good Without You (4