Which Chicago-born star sang "Make 'Em Laugh" in "Singin' in the Rain" and co-starred with a talking mule?

Which dictator, born in Braunau am Inn in 1889, owned a German shepherd named Blondi? Which Prohibition agent, born in 1903, led the "Untouchables" in Chicago and later cleaned up Cleveland? Which painter, born in Wyoming in 1912, created "Lavender Mist" and died in East Hampton, New York, in 1956? Which president, born in Milton, Massachusetts, in 1924, had a springer spaniel named Millie? Which Irish artist and author, born in 1932 with cerebral palsy, painted and typed with his left foot? Which American pop saxophonist, born in 1956, is known for the instrumental hit "Songbird"? Born in the small town of Wadowice, the future Pope John Paul II enrolled in 1938 at which city's Jagiellonian Universi… Which founder of a world religion was born around 570 in Mecca and died in Medina in 632?