Brain teasers are one of the best puzzles to test the sharpness of the brain. Readers must think creatively to solve brain teasers. Brain teasers present these challenges as picture puzzles, math ...

Can you solve this tricky math puzzle 🧮?!!

She’s right—using simultaneous equations does get really complicated, and if you’d like to send me your work for the solution, I’d love to see it. But the system is also kind of a trick. Like a sudoku ...

Using only the numbers 1, 2, 3, 4, 5 and 6 and the mathematical operations addition, subtraction, multiplication and division, can you arrive at the value 456? You may use each number at most once in ...

An amusing parlor trick is performed as follows. Ask spectator A to jot down any three-digit number and then to repeat the digits in the same order to make a six-digit number (e.g., 394,394). With ...