Let's take a walk down memory lane - straight to geometry class (sorry). A Twitter user posted a photo of a mind-boggling triangle brain teaser, and people are now questioning their basic math skills.

Well, what is the best way to cut a sandwich in half? Surely triangles don't really have "more sandwich," right? That's geometry and the law of conservation of matter. But something about the ...

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging ...

Do you think you have sharp eyes and an even sharper brain? Here’s a fun challenge that will put your observation and problem-solving skills to the test! Optical illusions are not just fun to look at ...

On the video, the rapper known as 2 Pi reels off rhymes as teenagers in classrooms and hallways sway and bop to the music. It's upbeat. It's catchy. It's . . . math. We solve triangles one by one We ...