NPR's Ayesha Rascoe plays the puzzle with Weekend Edition Puzzlemaster Will Shortz and Lauren Cusitello of San Diego, Cali.

Researchers used questions from the NPR Sunday Puzzle challenge to build a benchmark to test AI 'reasoning' models.

On-air challenge: If I asked you to name two colors starting with the letters GRE-, you'd say Green and Grey. Now try these: Name two ... starting with: Last week's challenge: Last week's challenge ...

NPR's Ayesha Rascoe plays the puzzle with Weekend Edition Puzzlemaster Will Shortz and WUSF listener Wendy Belkin of ...

Every Sunday, NPR host Will Shortz, The New York Times' crossword puzzle guru, gets to quiz thousands of listeners in a long-running segment called the Sunday Puzzle. While written to be solvable ...

NPR's Ayesha Rascoe plays the puzzle with Weekend Edition Puzzlemaster Will Shortz and Lauren Cusitello of San Diego, Cali. On-air challenge: I'm going to read you some sentences. Each one ...