Here, count with me: 1, 2, 3, 4, 5, 6, 7, 8, 9, T, 11, 12 … Oh, what’s that? You write ten with “zero”? Fair enough. Zero, we have been told, is the ...

First, we will understand that in this ball series puzzle, the digits are represented in binary format where a ball is 1 and a ring is 0. As you may notice that figures (b) and (c) have already once ...

Brain teasers are an excellent way to keep your mind sharp and engage your problem-solving skills. Ranging from simple to complex, these puzzles offer a fun yet challenging way to give your brain a ...

Brain teasers and IQ tests are ways to challenge the mind that increase cognitive thinking often revealing unexpected problem ...

Solve Math Puzzles With Santa: It’s the Christmas season and all of us are in a festive mood. Schools have shut down for the holidays and children eagerly wait for Santa to arrive on Christmas and ...

The following is adapted from the introduction to “The Riddler: Fantastic Puzzles from FiveThirtyEight,” published by W. W. Norton & Co. It is in stores today! The world’s oldest collection of math ...

Assign the digits 0 through 9 to the letters below to create valid sums. Each letter stands for a unique digit, and all occurrences of that letter stand for the same digit. (For instance, if A = 6, ...