Browsing: Quiz

Can you find his p.a.t.i.e.n.ts? This one’s more challenging. We can see the doctor clearly, but several of his patients are depicted in this image, too.…

Choose the right keyhole Some pirates believed that earrings had a positive effect on vision. But would this help them in solving our visual riddles? We…

What catch your attention right away? Optical illusions have long fascinated us, drawing our attention while raising a plethora of unsolved questions. Instead of only using…