Plot: John Humphrys asks the questions as four famous faces brave the black chair in another episode of the classic quiz, donating their winnings to their chosen charities. TV presenter Dr Ranj Singh, former TOWIE cast member Jessica Wright, author and former politician Alan Johnson and comedian Katy Brand are in the spotlight tonight, answering questions on RuPaul’s Drag Race, Monica Geller from Friends, The Beatles and Dirty Dancing