Spot the difference puzzles are excellent for testing an individual's observation skills and memory power. These present ...

120426426 But look again. These two images, side by side, are not identical. There are three subtle but noticeable differences if you look closely. Did you spot them?

BRAIN TEASER: THIS 'TRICKY' NATURE-INSPIRED MATH PUZZLE MIGHT STUMP YOU IF YOU'RE NOT CAREFUL The differences can be found in the details — so look closely as you compare the two images.

Readers must identify the differences between two similar images in a spot-the-difference game. Notice the change. Puzzles are a fantastic way to test your memory and focus.