Of the world powers in World War I, which empire did not realize the value of coded messages and used an overcomplicated version of the Vigenère Cipher broken within three days by Austro-Hungarian cryptanalyst Hermann Pokorny?

In which of these places is Christmas a public holiday?

In which year did Alexander Fleming discover penicillin?

When Justin participated in Ellen DeGeneres' show in connection with his 18th birthday, he was surprised to receive a car as a birthday gift. Which car did he get?

Justin Bieber's home town friend Ryan Butler has appeared in one of his music videos. Which one?

Which of these films is the newest?

On 22nd October 1995, the 50th anniversary of the foundation of which of these organizations was celebrated in New York City?

Michelle Obama launched which campaign to help tackle childhood obesity on February 9, 2010?