Crossword of Friends

12345678910
Across
  1. 3. "Watch out!"
  2. 5. what causes a lit train
  3. 8. what happens every 365 days sometimes 366
  4. 9. "___ they, won't they?"
  5. 10. the head of problem games
Down
  1. 1. a number that does not fit in with others
  2. 2. a common incorrectly spelled homophone
  3. 4. homophone of answer to "Watch out!"
  4. 6. the best person ever
  5. 7. a common "wall" on the internet