50 is Nifty!

123456789101112131415161718
Across
  1. 3. Who won the 50th Superbowl?
  2. 4. Steelers linebacker who wore #50
  3. 8. Country that crosses the 50th parallel south
  4. 9. Pirate who wears #50
  5. 11. Element with atomic number 50
  6. 13. Fifty shades of _
  7. 14. President in 1950
  8. 16. 50th Superbowl MVP
  9. 17. Celsius degrees for 50F
  10. 18. Counting by fours, the 50th day of the year falls in this month
Down
  1. 1. 50th state to join the US
  2. 2. Fifty in Greek written phonetically
  3. 3. First baseball player to join the 50 home run club
  4. 4. NFL team that can't seem to score 50 points
  5. 5. 50 Ways to Leave your Lover artist
  6. 6. Rapper 50_
  7. 7. Gift type for a 50th anniversary
  8. 8. Fifty in French
  9. 10. Fifty in Roman numerals
  10. 12. Your age today!
  11. 15. Add 30 for a significant street