Christmas Mystery puzzle

1234567891011121314151617181920
Across
  1. 1. Indian commander
  2. 5. Author of "A Christmas Carol"
  3. 8. "Iron Man" + two
  4. 9. Founder of the Slytherin house
  5. 11. Tallest U.S. president
  6. 12. Folded guide
  7. 13. Before tax
  8. 14. America’s discovery month
  9. 15. Tour de France equivalent in Spain
  10. 18. Finger highway
  11. 20. The genius behind the apple
Down
  1. 2. Only U.S. state capital without a McDonald’s
  2. 3. Sand in Spanish (and sports brand)
  3. 4. Business association
  4. 6. America’s Finest City
  5. 7. Praise or compliment someone
  6. 10. Biggest U.S. state
  7. 16. First capital of Italy
  8. 17. Foot prison
  9. 19. What Baryshnikov was