Given an open-ended topic (movie name, a persons name, an event, sports, etc) generate a simple trivia-type question.

bock
Alt, Bock, Dunkel and Helles are German varieties of what?

battle of the alamo
In which city in Texas is the fortress known as 'The Alamo', to be found?

chicago blues
'Smokestack Lightnin' and 'Red Rooster' were originally recorded by which Chicago blues singer?