On-air challenge: Every answer is a two-word phrase in which the letter "O" is added at the end of the first word to make the second word. For example, given the clue "pack animal owned by Thomas Jefferson's first vice president," the answer would be "Burr burro."
Last week's challenge: Draw a regular hexagon and connect every pair of vertices except one. The pair you don't connect are not on opposite sides of the hexagon but along a shorter diagonal. How many triangles of any size are in this figure?
The race for the Republican nomination of 1860 was one of the great political contests of American history. It was Abraham Lincoln versus Salmon Chase, versus William Seward.
Author Walter Stahr spoke with Weekends All Things Considered host Guy Raz about his new biography, Seward: Lincoln's Indispensable Man. He describes how a man who was Lincoln's fiercest and most critical opponent eventually became his most loyal and trusted adviser.
Falafel — those crispy, filling fried balls of mashed beans, herbs and spices — is found in cafes and homes all over the Middle East and parts of Africa. It's like a common language shared among sometimes fractious nations.
But until recently, I always thought falafel was made one way — garbanzo beans, onion, garlic, parsley, cilantro and cumin. (That's how my Sudanese mother taught me.) But it turns out there are many recipes out there, each with a flavor distinct to its region.
The people who host NPR programs are often credited with — or accused of — being knowledgeable.
But really, the most important bit of knowledge they have is just a four digit extension that connects to Kee Malesky in the NPR Reference Library. If you want the names and contact numbers for every left-handed plumber in Kuala Lumpur, she'll fix you up. She's the longest-serving member of a stellar company of reference librarians who check, double-check and mine miles of information, urban legend and spin for cold, hard, glittering facts.