For the purposes of the puzzle, though, #5 is the apparent choice.
Why These Puzzles Are So Addictive
Visual puzzles like this are popular because they create a simple challenge with an immediate reward.
You see a picture.
You receive one instruction:
Find the odd one out.
And suddenly your brain switches into detective mode.
You begin scanning the image from left to right.
Maybe it’s No. 1.
No… perhaps No. 2.
Wait — No. 3 looks slightly different.
Then you look at No. 4.
You compare No. 5 with everyone else.
You check No. 6.
And finally you reach No. 7.
Then you start all over again.
The best visual puzzles work this way because they encourage people to examine details they would normally ignore.
The Psychology Behind the Challenge
Our brains are extremely good
at recognizing patterns.
When we see seven people wearing the same uniform, we automatically categorize them as a group.
We don’t normally stop to analyze every individual detail.
