In this mind-bending puzzle, there are three numbers that are visible - 21, 22, and 23. But there is a third number in this ...

Only someone with an IQ above 150 can solve this brain teaser in 4 seconds. Are you one of them? Go ahead and test your intelligence now!

Look at this optical puzzle closely, it is designed to test your visual acuity. Observe this image carefully and find out the odd number present in the image. You only get 5 seconds to find the odd ...

Wordle is a word puzzle that gives players six chances to guess a five-letter word. Originally created by software engineer Josh Wardle and released to the public in 2021, the puzzle was acquired by ...

Matchboxes and shampoo sachets are bought and then sold at a profit. With limited information, can you find out how many there are of each?

Think you have sharp eyes? Here’s a fun challenge for you! Hidden among a sea of numbers 32 and 23 is a sneaky little number 33—can you spot it? This optical illusion is a real test of your ...

Killer sudoku is similar to the other levels in that each of the numbers 1-9 must fit into each 9-by-9 square. No number can ...

FT.com will bring you the crossword from Monday to Saturday as well as the Weekend FT Polymath.

The Jump Game is a puzzle that’s used in technical interviews for software engineering jobs. Think: jobs at Google or Amazon.

Here's today's Connections answer and hints for groups. These clues will help you solve New York Times' popular puzzle game, ...

As major U.S. companies pull back on diversity, equity, and inclusion programs, some entrepreneurs worry about the loss of ...

Now, more than 122 years after it was first proposed, Kamata and two other mathematicians have finally proved that a solution ...