Frankie thought his daughter would be learning all the different shape names, but told Newsweek he quickly realized that was not the case.

Henry Ernest Dudeney posed the famous dissection problem of transforming a triangle into a square by cutting it into as few ...

In 1907, the English author and mathematician Henry Ernest Dudeney posed a puzzle: Can any equilateral triangle be cut into ...

For this challenge you'll be presented with a sequence of different shapes. To solve the puzzle you will need to identify which missing shape completes the sequence. It may help to have a pencil ...

That's where her daughter encountered the spot-the-difference puzzle asking kids to find the five differences between two pictures of a farfalle-shaped cartoon character. A photo of the ...

Beat the clock by spotting the pattern in this brainteaser challenge. You'll see a row of different shapes but one shape is missing, replaced by a question mark. It's up to you to figure out what ...