This series of fun puzzles have the ability to put your observation skills to the test, each puzzle slightly more difficult than the last.
Set a timer for 60 seconds, scroll down, and see how long it takes you to spot the odd one out in each of the four pictures. Can you beat the clock? The answers are revealed down below.
Are you ready? Let’s start!
How fast can you spot all differences in this test? Let us know your score in the comments!