Impossible Crossword

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Across
  1. 2. The name of a Dairy Queen dessert?
  2. 6. German word for birthday surprise?
  3. 7. Capital of Norway?
  4. 9. Condition where the yolk sack of a fish embryo swells up with fluid?
  5. 12. US state in between Washington state and California
  6. 13. Seventeenth letter of the Greek alphabet?
  7. 14. What team won the 1993 World Series?
  8. 16. Most popular game played at children's birthday parties?
  9. 17. Most popular nail polish colour of 1950?
  10. 18. What Frosty the Snowman's nose was made out of?
  11. 19. Most common age where people get married in Malaysia?
Down
  1. 1. Happiest day of the year in the UK?
  2. 3. What did April and Matthew's mints say in Grey's Anatomy?
  3. 4. Marilyn Monroe's middle name?
  4. 5. Which language has the most native speakers?
  5. 8. Country where it is illegal to have gum?
  6. 9. Ross and Rachel's daughter in friends?
  7. 10. Most popular baby girl name of 1999 in BC?
  8. 11. First video on YouTube to get 1 billion views?
  9. 15. Last province to join Canada?