Problem: "On what river do Oxford and Cambridge compete in a ""Boat Race""?"
Answer: thames

Problem: In which Gilbert and Sullivan opera do fairies take over Parliament?
Answer: iolanthe

Problem: What is the minimum number of people that can turn an unruly disturbance into a riot
Answer: three

Problem: "In what country was ""The Lord of the Rings"" trilogy filmed?"
Answer:
new zealand