How many holes does this t-shirt have? Only one in seven people find the right answer

Why Our Brains Are So Wrong So Often

Our brains love shortcuts. Faced with a t-shirt, he immediately thinks of the obvious openings: the head, the arms, the bottom. But he tends to ignore a fundamental detail… or rather two: the front and the back.

In this type of puzzle, you focus on what you see first. We forget that the holes go through the fabric from one side to the other. And this is precisely where the trap closes.

Let’s take the time to count together

Let’s start calmly, without rushing.

• A hole for the head
• Two arm holes
• A hole at the bottom for the body

So far, everyone agrees. So we get to four holes. It is often at this stage that many stop… or they add the two holes visible on the front of the t-shirt (in the challenge art), which brings them to six.

But this reasoning remains incomplete.

The detail that almost everyone forgets

A hole, by definition, passes through a material. If you can see through it, it means that there is an entrance and an exit. In other words, a visible hole at the front also exists at the back.

The two holes visible on the front of the t-shirt are therefore also present on the back. We don’t always notice them, because our gaze naturally stops on what is directly in front of our eyes.

This is where the enigma gets really interesting… and that the answer shifts.

The final (and correct) answer

Let’s go back to the final calculation:

• 1 head hole
• 2 arm holes
• 1 hole at the bottom
• 2 visible holes on the front
• 2 matching holes on the back

Total: 8 holes

Yes, 8. An answer that seems exaggerated at first, but which becomes obvious once the explanation is put in black and white.