There are 11 human faces in the picture. Can you find them all?
In this optical illusion can you tell if the lines are Circular or Spiral
Just try to click on the black dot
Sitting in front of the screen and look at the dot and move your head
Do you see the hidden image
This puzzle is missing a piece ...or is it
There are people hidden within this image.
Your brain will try to reinterpret this image
Classic left brain right brain conflict
If we remove the squares are the lines straight
Are all of these squares equal in size
Another circle or spirals question
Concentrate on the black ' + ' in the centre of the picture