Britain's most popular pub quiz has held its bumper Christmas edition - complete with a question from A lister Paul Rudd.<br /><br />The Barley Mow in Marylebone, central London holds a quiz every Tuesday which gets booked out weeks in advance - and boasts a lengthy waiting list. <br /><br />Its Christmas Quiz, a ticketed event which raises money for homeless charity Shelter, is even more popular if possible - selling out practically instantly.
