Problem: Which country changed its name to Botswana on gaining independence in 1966?
Answer: bechuanaland

Problem: March 28, 1987 saw the death, at age 82, of one Maria von Trapp, who was the inspiration behind what Rogers and Hammerstein musical?
Answer: sound of music

Problem: In which decade was Arnold Schwarzenegger born?
Answer: 1950s

Problem: What cave, located in Kentucky, has over 400 miles of passages?
Answer:
mammoth cave