Riddle and jokes, makes no sense!

1234567891011121314151617
Across
  1. 2. biggest mode
  2. 7. when you don't have to go to school
  3. 9. scary halloween evil
  4. 10. electrical phenomenon
  5. 13. what you speak with
  6. 16. fake
  7. 17. do imposible things to do
Down
  1. 1. robot cat
  2. 3. something you turn off before you go to sleep
  3. 4. cow trying to speak
  4. 5. half infintity
  5. 6. when your mom shout at you to do something
  6. 8. the past of today and the future of 2 days ago
  7. 11. need for the start of a golf ball game
  8. 12. delicious
  9. 14. have to have
  10. 15. same meaning as "draw"