Number Puzzle

12345678
Across
  1. 1. how many legs does a spider have?
  2. 4. what is the number that changed into a alphabet in a Korean elevator
  3. 6. What is the number of a nose of a human
  4. 7. the lucky number
  5. 8. 3x3-(3+2)+2^2
Down
  1. 2. what is the number of arms of a human
  2. 3. what is the number of fins of a dolphin?
  3. 4. The first letter of Fart?
  4. 5. the last number of this crossword puzzle
  5. 7. omen the movie's favorite number