Problem: Alban Berg's opera 'Lulu' ends with the appearance of which murderer?
Answer: jack ripper

Problem: The device shaped like a human foot, which cobblers use to make and repair shoes is called what?
Answer: last

Problem: When was the Euro first used as a unit of currency?
Answer: 1999

Problem: What is the name of the paranoid android in the novel 'The Hitchhiker's Guide to the Galaxy' by Douglas Adams?
Answer:
marvin