20. Ghost face.
19. Black hole.
18. Ants & Labyrinths.
17. The three R's.
16. Mask of Love.
15. Illusive 'Toblerone'.
14. Pointing fingers.
13. Hawaian mistakes.
12. The hidden Tiger.
11. Geometrical baffle.
10. How many yellow-and-blue balls?
9. Find the panda cub.
8. Ferdinand Hodler's landscape.
7. Impossible courtyard.
6. Terrace dilemma.
5. Where you bean?
4. Illusory motion.
3. Google distraction.
2. Mystery house.
1. Restaurant illusion.