How many holes are in this shirt?

Every once in a while, a simple riddle comes along and completely divides the internet. It starts innocently enough—usually passed around in a group chat or spotted late at night on a social media feed—and before you know it, hundreds of people are arguing in the comment section over what seems like basic math.

The latest brain-teaser keeping people up at night is perfectly captured in the viral image.

It features a simple illustration of a blue polo shirt against a wooden backdrop, accompanied by a straightforward question: "How many holes are in this shirt?"

At first glance, you might glance at it, count to two or three, and prepare to scroll past. But look a little closer. This visual puzzle is a masterclass in lateral thinking, and the true answer requires you to think in three dimensions.

The Trap: Why Most People Get It Wrong

When people first look, their eyes are immediately drawn to the most obvious anomalies: the two large, irregular tears right in the middle of the fabric. Because of this, the most common gut-reaction answer is 2.

Those who are a bit more literal-minded will stop and remember that a shirt isn't a solid piece of cloth; it has built-in openings so a human can actually wear it. They add the neck, the two sleeves, and the bottom hem to the tally, confidently guessing 6.

But both of these answers miss a crucial piece of visual evidence hiding right in plain sight.

The Breakdown: Counting the Real Total

To find the correct answer, you have to treat the shirt like a real object existing in the physical world. Let's break down the anatomy of the shirt in the image: