Problem: Which vitamin is also known as Retinol/
Answer: vitamin

Problem: Who did Nick Clegg narrowly defeat in the LibDem leadership contest in 2007?
Answer: chris huhne

Problem: On which motorway is the Thelwall Viaduct?
Answer: m6

Problem: Films. Give the next title in the following sequence: East of Eden, Rebel Without a Cause - ?
Answer:
giant