99% of people are wrong… How many holes does this shirt really have?

99% of people get it wrong… How many holes does this t-shirt really have? 

Visual puzzles are a great way to test your observation skills. At first glance, this image seems very simple: a red t-shirt with several visible holes. However, most people give the wrong answer because they only focus on the front of the garment.

Take a few seconds before reading on… How many holes do you count?

Why is this puzzle so tricky? Our brains tend to count only the most obvious openings. But you have to think about the entire t-shirt:

The neck opening.
Both rounds.
The opening at the bottom of the t-shirt.
The large holes are visible in the fabric.

Upon closer inspection, six holes can be seen in the fabric. Since these holes go all the way through the t-shirt, they are visible through the cardboard placed behind it.