Easter crossword quiz

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Across
  1. 2. What is the longest river in the world?
  2. 8. Where was the first modern Olympic Games held?
  3. 9. Who invented the iconic Little Black Dress?
  4. 11. Name the best-selling book series of the 21st century
  5. 13. What's the smallest country in the world?
  6. 14. Man's best friend
  7. 16. Which city has a football team known as 'The Red Devils'?
  8. 19. What city does Banksy come from?
  9. 20. Name the largest (not highest) mountain range in the world
Down
  1. 1. Which artist painted the ceiling of the Sistine Chapel?
  2. 3. Which city do The Beatles come from?
  3. 4. Which driver has won the most F1 championships?
  4. 5. Large marsupial
  5. 6. Flying mammal
  6. 7. Until 1923, what was the Turkish city of Istanbul called?
  7. 10. What's the name of the coffee shop in Friends?
  8. 12. What's the capital of Canada?
  9. 15. What is the slang name for New York City, used by locals?
  10. 17. Which of the following empires had no written language: Incan, Aztec, Egyptian, Roman?
  11. 18. How many time zones are there in Russia?