In today’s brain teaser you have to spot the alien by looking at the picture. In the image, three women can be seen. All of them are wearing royal gowns. However, one of the three women is not a human ...
The blood–brain barrier acts as a strict control point for what can enter the brain, and is created by tight junctions between endothelial cells lining blood vessels, astroyctic endfeet and a ...
Challenge yourself with some of the hardest riddles we could find so you can keep your mind sharp! As you tackle these tricky brain teasers, you'll engage your mind in a way that few other activities ...