David Astle is a crossword-maker (alias DA) and Wordplay columnist with the Sydney Morning Herald. He's also the new Evenings host for ABC Melbourne, as well as being a regular on ABC TV's News Breakfast. An author of some 15 books, David's most recent titles are Rewording The Brain (how puzzling benefits our neurons), and for kids: 101 Weird Words (and 3 Fakes).