The United Kingdom-based dance apparel company Dancewear Central, which also provided us with this tricky puzzle where only 10 percent of people can spot the difference, posted this perplexing pink plethora on its Instagram page. It’s a simple premise:

IQ, short for intelligence quotient, is a measure of a person’s reasoning ability. … IQ tests begin to assess this by measuring short- and long-term memory. They also measure how well people can solve puzzles and recall information they’ve heard — and how quickly. Every student can learn, no matter how intelligent.

There are people who have the ability to observe their surroundings in such detail that nothing goes unnoticed — they simply have a hawk’s eye. But there are also those who miss things, even if they are on the tip of their nose!