A brain teaser shared on Facebook challenged users to count triangles.

But the challenge is deceptively simple: how many triangles can you spot in this picture? Brain teaser: Only the smartest people can find the correct answer. (Instagram/@mathematicshub01) ...

#25 Triangles in circles Set by Sam Hartburn If you have six equally spaced points on a circle and join three of them, you can make three different triangles.

Perhaps the real question is — how many triangles do you see? Read more news like this on HindustanTimes.com Social media users argued over a brain teaser asking them to count triangles.