1. Who is known as the "Father of the Nation" in India?

2. Who developed the theory of relativity?

3. Which famous London theatre is most closely associated with William Shakespeare and his playing company?

4. In front of which landmark did Martin Luther King Jr. deliver his 'I Have a Dream' speech?

5. Which Mongol ruler did Marco Polo serve for nearly two decades in China?

6. What device did Thomas Edison invent that was the first to record and play back sound?

7. Which famous philosopher served as the personal tutor to a young Alexander the Great?

8. Crossing which river signaled Julius Caesar's declaration of war against the Roman Senate?

9. Nikola Tesla was a major proponent of which electrical system during the 'War of Currents'?

10. What nickname was given to Margaret Thatcher by a Soviet journalist to describe her uncompromising style?

11. At which 1815 battle was Napoleon finally defeated by the Duke of Wellington?

12. Which famous biblical figure did Michelangelo sculpt in marble for the city of Florence?

13. Which U.S. state's landscape became a major inspiration for Georgia O'Keeffe's later work?

14. Bach was a master of which musical period?

15. According to Sun Tzu, what is the 'supreme art of war'?

16. What was the name of Charlie Chaplin's 1940 film that satirized Adolf Hitler?

17. Which famous playwright was Marilyn Monroe's third husband?

18. What term did Desmond Tutu coin to describe the multiculturalism of post-apartheid South Africa?

19. What is the name of the house where Frida Kahlo was born and lived for most of her life?

20. What exclamation, meaning 'I have found it!', is famously attributed to Archimedes?