Thomas' general knowledge crossword

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Across
  1. 4. the most powerful brand
  2. 7. single strand of spaghetti
  3. 9. greek mathematition
  4. 11. fastest man alive
  5. 12. longest british reigning monarch
  6. 15. freed from desire lyrics writer
  7. 16. game company made 1889
Down
  1. 1. planet furthest from sun
  2. 2. smell
  3. 3. string istrument
  4. 5. stern
  5. 6. think
  6. 7. central american island
  7. 8. church song
  8. 10. number of players to score world cup final teenagers
  9. 13. creator of tesla
  10. 14. spanish top football league
  11. 15. main character of diary of a wimpy kid