By Thoroughbred rules, a horse born December 31, 1998, became a yearling on what date?

Which cat, a stray adopted by the Clintons in Little Rock, lived in the White House in the 1990s? Which Greek letter is a homophone of a verb meaning to paddle? A hood who's "packing a rod" is carrying what? Which Shakespeare king cries "A horse! A horse! My kingdom for a horse!"? A horse named Comanche survived which man's June 1876 last stand? A horse or a salamander, but not a human or a snake, is an example of what? Which band had a 1972 hit with "A Horse with No Name"? A horse's head with an orange mane is the logo of which NFL team?