Problem: What was the predecessor to the computer game Riven?
Answer: myst

Problem: James Arthur was the winner of which TV reality programme in December 2012?
Answer: x factor

Problem: Who had hits with the songs, 'Lonely Boy' in 1976 and 'Never Let Her Slip Away' in 1978?
Answer: andrew gold

Problem: What is the plural of court-martial?
Answer:
courts martial