
Optical illusions have taken social media by storm, captivating people with their ability to test and challenge visual perception while filling them with intrigue and excitement. These illusions can reveal insights about one’s personality and improve focus and concentration, stimulating cognitive abilities. Why not give it a go and test your skills with one of these optical illusions?
The Challenge
In the image, you’ll be looking at a stack of colorful books where a pencil is cleverly hidden. Commissioned by Exam Papers Plus, this minimal color palette image requires keen observation to spot the pencil among the books.

You have 20 seconds to find it. Search every nook and corner, don’t give up.
Keep your focus sharp and persist.
If you’re in need of a clue, remember that the pencil in the illustration shares the same green color as the books.
Keep using your eagle eyes to spot the elusive pencil.
Have you found it? Congratulations if you have!
The Solution
If you’re still having trouble, here’s the answer below:
An IQ test optical illusion is a type of visual puzzle or challenge that is designed to test a person’s cognitive abilities, particularly their visual perception, observation skills, and ability to identify patterns or hidden objects within an image. These illusions typically involve deceptive or misleading visual cues that can trick the brain into perceiving something differently than what is actually depicted. IQ test optical illusions are often used as a fun and engaging way to assess a person’s cognitive capabilities and measure their IQ (intelligence quotient) levels. They can be found in various forms, such as images, videos, or interactive online games, and are popular on social media and other platforms.