The number 129 replaces the question mark. The key is the sequence of prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, … The number in each polygon with n sides is the sum of the first n prime ...

All the Latest Game Footage and Images from Fill one-line puzzle game Sharpen your mind with a connect-the-block-style one-line brain training puzzle game. A simple but addictive one-line puzzle ...

NPR's Ayesha Rascoe plays the puzzle with Jeff Forster of Pittsburgh, Pennsylvania and puzzlemaster Will Shortz. Sunday Puzzle: Fill in the Blank On-air challenge: I'm going to read you some ...

Apple is expanding its collection of Apple News+ Puzzles with yet another new game. This time, Apple is tapping ...

Here’s a famous teaser that I don’t really like much: What number comes next in the sequence 8, 5, 4, 9, 1, 7,…? It’s not so obvious. It becomes a little easier when we write the sequence ...

Sudoku is a classic number puzzle that encourages logical thinking and decision-making. Players fill in a grid without repeating numbers in rows, columns or boxes, requiring patience and analysis.