A brain teaser on Instagram asked users to count the number of "3"s in a phone dialer interface, challenging their ...

Observation Brain Challenge: Only 2% With Laser Vision Can Spot The Number 69 among 66 in 6 Seconds This brain challenge tasks individuals with identifying the number 69 hidden among a series of 66s ...

A new maths puzzle is leaving people scratching their heads as they struggle to work out the 100th digit in a sequence - as some say they 'don't even understand the question' ...

One particularly fiendish final question on The 1% Club had viewers utterly stumped and wasn't even attempted by the two ...

Brain teasers have captivated people for centuries ... Well, you need to find the answer to the last number in this puzzle. If you look closely enough your high IQ will notice a pattern between ...

To solve this brain teaser, viewers will need to study the ... Starting with the top right number and working clockwise, viewers need to look at the difference between four and seven, which ...

Brainteasers are becoming ever more popular online as people enjoy the satisfaction of cracking puzzles and giving their ...

A brain teaser challenges readers to find a hidden hippo in a lively ... What makes this optical illusion so challenging is the sheer number of people and activities happening in the frame. You’ll ...

Neuroscience helps show why the concept of zero took (takes!) so long to take hold, both for deep thinkers and for children's developing minds.

Practice makes perfect, after all, and brain teasers are good challenges to take on. Not only are the puzzles heaps of fun - ...