This week: We want you to identify the ads and the theme. Fax your answers to (020) 8267 4914/4915 or e-mail email@example.com by the close of play on Friday 3 December. The winner will receive a bottle of Champagne.
Last week: Congratulations to Marie de Lantsheere of Orion Books, who answered last week's competition correctly. The answers were: 1. Citroen; 2. Fosters; 3. PlayStation. The theme was robots.