17 Optical Illusions That Will Melt Your Brain

By Tom Butler /

12. How Many Dogs?

See if you can count how many sausage dogs are in this image. Hint: you can't.

11. Beer Ad

From almost every angle this would look like a horribly jumbled mess. Approach from exactly this direction though, and it unnervingly looks like a bottle is sticking out of the lorry. Just in time to not notice that oncoming motorbike.