question: What is the answer: On Sept 14, 1901, the youngest president is sworn in following the assassination of William McKinley. Who is it?
answer: theodore roosevelt

question: What is the answer: What is the name of the international airport with IATA code DSA built on the site of the former RAF Finningley?
answer: robin hood airport

question: What is the answer: Who changes colour during The Two Towers, from Grey to White?
answer: gandalf

question: What is the answer: How do we better know a list compiled in ancient times by Antipater of Sidon and by an observer identified as Philo of Byzantium?
answer:
seven wonders of ancient world