What 20 songs are these from the '60s?

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Across
  1. 1. Commonly done in school
  2. 5. Aka: the business district
  3. 6. Hawaii's surf break
  4. 9. Hometown of the King
  5. 10. Scary / Frightening
  6. 11. A few days before tomorrow
  7. 14. The result from watching sad movies
  8. 15. A child's favorite excuse
  9. 17. This is perfect for most activities
  10. 19. Hearing these help many of us sleep
Down
  1. 2. Many teens are thought to be these
  2. 3. What many of us are losing
  3. 4. Black & white and makes shrill noises
  4. 6. We see these everywhere
  5. 7. The desired position at the checkered flag
  6. 8. A feeling or intuition
  7. 12. What we collect over the years
  8. 13. Happens when you spin around
  9. 16. Used for drinking and cooking
  10. 18. Great or flying kites