At which village was the armistice ending the fighting of the Korean War signed in July 1953?

What is the wedge-shaped stone at the top of an arch that locks the other stones in place? Which piano virtuoso and ardent Polish patriot served as Poland's prime minister in 1919? Joe Louis Arena, the site of the 1980 Republican National Convention, is in which city? The "Arkansas toothpick" is a large type of what? What is the lowest commissioned officer rank in the U.S. Army? An article about which astronomer, born in Germany in 1571, is titled "The Man Who Moved the Universe"? Which American folk artist was born September 7, 1860, in Greenwich, New York, and died December 13, 1961, in Hoosick F… A nameless prototype of which cartoon character appeared in the 1938 cartoon "Porky's Hare Hunt"?