Here is what the brain teaser reads: A+A=20, B+B=30,C+C=40, A+B+C=? While these may appear to be very simple equations the ...

This tricky math puzzle with incorrect equations asks puzzle lovers to discover the hidden answer. Can you do it?

Ready for a real test? Only people with a high IQ above 130 can find the sum of this number in 7 seconds. Are you up for it?

You have an IQ above 140 if you can solve this math puzzle in 9 seconds. Go ahead and test your intelligence now!

To solve this brain teaser, viewers will need to study the numbers and identify a pattern among the numbers. Here's a hint: you should look at the mathematical difference between each one.

A new brain teaser shared by X left many puzzled, as it cleverly played on sibling relationships and challenged assumptions.

Flex your math muscles with this weekend’s brain teaser. Play now.

Brain teasers enhance cognitive skills and provide a fun challenge. Today's puzzle asks to correct an equation by moving a matchstick. Brain teasers can be a great way to reduce stress and test ...

Three books have been hidden amongst a busy Halloween scene and finding them is presenting a challenge for even the most ...

The question emerged in 2021, but it has since returned to stump a whole new legion of wannabe brainboxes who are determined ...

Hans-Karl Eder is a German mathematician, educator and author who also works as a MINT ambassador to get young people ...

But researchers are building new A.I. systems that can verify their own math — and maybe more. By Cade Metz Reporting from San Francisco On a recent afternoon, Tudor Achim gave a brain teaser to ...