Bleu des Causses, matured in natural caves in southern France, is a type of what?

Blanche of Castile ruled France as regent while her son Louis IX left on what kind of expedition in 1248? A BLAT sandwich is a BLT with which additional ingredient? "Bleeding Kansas" got its name from violence over which issue in the 1850s? Which blended-language term was also the title of a 2004 Adam Sandler film? In the restaurant chain IHOP, what does the letter H stand for? Which actor who played Gopher on "The Love Boat" later served as a U.S. representative from Iowa? Which flying mammal of the order Chiroptera completes the simile "blind as a ___"? Gene Hackman plays a blind hermit who entertains Peter Boyle's monster in which 1974 comedy?