This holiday-themed brainteaser looks simple, but it's quietly tripping up adults everywhere. A math teacher walks us through ...

A version of this puzzle originally appeared in the October 1960 issue of Scientific American. What’s the Most Distant Galaxy ...

Here are the answers to the festive maths quiz I set on December 23. I hope you enjoyed it.

Duah: Using puzzles, both at home and in classrooms, can restore the often-forgotten truth that learning happens in ...

A math puzzle is a type of brain teaser that tests the reader's critical thinking and problem-solving skills by challenging them to solve a problem. These challenges have the potential to boost ...

What’s more, doing maths is often a collaborative endeavour – and can be a great source of fun and fulfilment when people ...

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, ...

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 ...