Toy expert and speech-language pathologist Erika Cardamone shares a few of her favorite puzzles for National Puzzle Day.

The power of the Executive Branch is vested in the President of the United States, who also acts as head of state and Commander-in-Chief of the armed forces. The President is responsible for ...

NPR's Ayesha Rascoe plays the puzzle with WFIU listener Mark Minster of Terre Haute, Ind., and Weekend Edition Puzzlemaster .