Common knowledge

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Across
  1. 1. What is the name of Mickey Mouse's pet dog?
  2. 4. What is the largest country in the world (by land area)?
  3. 7. How many states are there in the U.S.?
  4. 9. What is the one and only god in Islam?
  5. 10. Who said "One small step for man,one giant leap for mankind."
  6. 11. What country is sushi from?
  7. 13. what is the atomic sign for Helium on the periodic table?
  8. 14. Who is the wife of Bart Simpson?
  9. 17. How many stars are on the U.S. flag?
  10. 19. Who painted the Mona Lisa?
  11. 22. What is the general name for a group of wolves?
  12. 23. Which alcoholic beverage is commonly made from grapes?
  13. 28. How many countries are there total in the world?
  14. 29. How many Olympic rings are there?
  15. 30. Arachnophobia is a fear of what?
Down
  1. 2. What is the famous theory Einstein came up with?
  2. 3. What is the smallest country in the world?
  3. 5. Where is the Taj Mahal?
  4. 6. Which country sports a red maple leaf on its flag?
  5. 8. In Greek mythology, Hades is the god of what?
  6. 12. What is the name of a baby kangaroo?
  7. 15. Which singer told people to "Beat It" and "Heal the World"?
  8. 16. The Statue of Liberty was given by which country?
  9. 18. What planet is the third closest to the sun?
  10. 20. How many bones are there inside of your body?
  11. 21. What does the Japanese word Sayonara mean?
  12. 24. How many innings are in a baseball game?
  13. 25. How many minutes are there per quarter in basketball?
  14. 26. What is the currency of Scotland?
  15. 27. What is the longest river in the world?