At an Oxford track meet on May 6, 1954, Roger Bannister became the first person to cover which distance in under four minutes?

At about 7,000 feet in the Sangre de Cristo Mountains, which city is the highest U.S. state capital? At about 12,000 feet, which city, seat of Bolivia's government, is the world's highest de facto national capital? At about 10,200 feet, which Colorado city is the highest incorporated city in the United States? At a 1978 auction, which kind of book sold for about $2 million, then a record for a printed book? At the 1920 Antwerp Olympics, where the Olympic flag debuted, which birds were first released as symbols of peace? In 1314, which Scottish king defeated a much larger English army at Bannockburn, near Stirling Castle? Binion's casino in Las Vegas once displayed 100 $10,000 bills bearing the portrait of which New Hampshire native? The words "at," "by" and "of" all belong to which part of speech?