NPR's Ayesha Rascoe plays the puzzle with special guest, 'Jeopardy!'s' Ken Jennings.

Since this is the map from the Hobbit, it doesn't include every location in Middle Earth, but it is the overall best Lord of the Rings map puzzle I've been able to find.

In work led by Johns Hopkins researchers, the robot performed unflappably across trials and with the expertise of a skilled human surgeon, even during unexpected scenarios typical in real life medical ...