What is the catchphrase of Mad magazine mascot Alfred E. Neuman?

Alexei Yagudin, Todd Eldredge and Elvis Stojko all competed in which sport? Alexine Tinne's 1869 attempt to cross which desert ended when she was killed by her Tuareg guides? Around 1083, Alfonso VI of Castile captured which Moorish town, later Spain's capital? Alfonso VI, who died in 1109, called himself emperor of which two religions? Alfred E. Smith and William Gibbs McAdoo were two candidates for which party's presidential nomination in 1924? Alfred Hitchcock's first American film was which 1940 classic based on a Daphne du Maurier novel? Bernard Lovell's Jodrell Bank radio telescope was finished in 1957, just in time to track which first artificial satell… Alfred P. Sloan Jr. became head of which giant auto company in 1923 and built it into an industry leader?