Welcome back! For Day 4 of the challenge, let’s do a short and fun activity based around a concept called cognitive reserve.

The brain teaser was shared on X (formerly Twitter) by @Parkertzb with the caption, “Brain Teaser..! How many 16 can you see?

During today's Pokémon Presents, The Pokémon Company announced a brand new Pokémon spin-off game. It's called Pokémon Friends, and it's a daily brain teaser game featuring lots of Pokémon-themed ...

An optical illusion brain teaser IQ test is a test that involves the perception of images that deceive both the eye and the brain. To make use of your crystal-clear gaze is to look attentively, to ...