1. Optical Illusions

2. Which is darker A or B?

3. Black spots appear at the intersections.

4. The grey centre bar is the same shade everywhere! - Watch

5. Move your head forwards and backwards while looking at the black dot
Move your head forwards and backwards while looking at the black dot. What appears to happen?

6. There is a pipe in the stream of water that holds up the tap and supplies the water!

7. Focus on the cross in the middle – what happens?

8. Rabbit or duck?

9. Rabbit or duck?

10. Circle or spiral?

18. This is a circle – honest!

19. The thick black lines are parallel.

20. B or 13?

21. You guessed it. The red lines are straight.

23. How many legs?

25. Young lady or old lady?

26. Really truly nothing is moving here!

27. Can you see the 10 in the orange circle?

28. What number is visible in the coloured circle
What number is visible in the coloured circle? If you are colourblind you may see no number – like the grey image.

31. Practical and sporty

33. Can you find mother and child?

35. A dog in the snow

36. A dog in the snow
Now can you see him?