1. The number changes constantly
  2. It depends on how you look at it
  3. The movement is illusory
  4. Once again, the movement is illusory
  5. Technically, it's called an impossible box
  6. A seal and a donkey
  7. Yes, the staggard boxes make them look unparallel
  8. TRUE! It's amazing I know, but it's true, I've checked.