Since 1955, when the first FORTUNE 500 was created, more than 1,800 companies have appeared on the list. Many of these companies have changed names over this period, owing to mergers, acquisitions, ...

1. How many years has the federal government registered an annual budget surplus since 1934?

EQ, the social equivalent of IQ, is complex, in no small part because it depends on some pretty slippery variables -- including your innate compatibi ...