No matter who we are, we will all have to pass tests at some point in our lives. A portion of these exams might be administered in a classroom, while others will just be a part of the “school of hard knocks.”

Because there is so much pressure to perform well on examinations, some people detest taking them. On the other hand, sometimes we take tests without even realizing it—or maybe we even go looking for them for the appropriate reasons.

This includes an assessment to determine your IQ and general level of intelligence. There’s no need to discuss the results with anyone, and these tests can be entertaining. It’s solely intended for your eyes.

That’s what the image that follows shows. Because no one can identify which chicken is different, this has gone viral.

It takes a sharp eye and a high IQ to determine which of these hens is unique. Many have attempted, but many have not succeeded.

WARNING:

You might look at each chicken to see if there are any differences if you would like a hint. By the way, this makes the puzzle harder rather than easier.