(a ouvrir)
Watch the images below. Do they appear to be spinning?
(a ne pas ouvrir)
How many full cubes do you see here?
(a ouvrir)
This Is Trippy
(a ouvrir)
Scroll this page up and down and watch the center square magically move
(a ouvrir)
Watch the image and black dots will magically appear.
(a ouvrir)
Is the shape below a perfect square?
(a ouvrir)
How many prongs does this fork have?
(a ouvrir)
Stare at the image on the bottom and move your head forward while concentrating on the center dot
(a ouvrir)
