Do you enjoy a good brain challenge? Here’s one that might look easy, but only the sharpest minds can solve it in just 6 ...

Play the New York Post’s daily hard-level Sudoku puzzle online. See if you can fill in each square with a number 1-9, without repeating any number within each ...

Brain teaser puzzles test the reader's critical thinking and problem-solving skills by challenging them to solve a problem.

Pens, pencils and a facility with numbers. Also helpful: earplugs, plushies, a water bottle, calming herbal oil and the occasional “wild bifurcation” (a.k.a. a wild guess). Competitors at the World ...