useless trivia: What Word Means: Tufa?

Questions

What comedian was booted out of a Peoria grammar school when nuns learned his grandmother operated a number of brothels?

What disorder's name is derived from the Greek for "without appetite"?

What is the darkest part of a shadow called?

What's the name for the grotesque figures that hold waterspouts to throw water away from buildings?

Spaniard rodrigo diaz de viva was better known as?