What word names a bell rung to sound an alarm or signal?

In which 1976 comedy does a beer-swilling pool cleaner coach a misfit Little League team in Southern California? Beijing student Wuer Kaixi was a leader of the 1989 protests that ended in a bloody crackdown at which location? Which word describes a being that is not of this Earth? Which beer was created by a Belgian brewery for Christmas 1926 and sold year-round after it proved popular? The Benevolent and Protective Order of which animal got its name in 1868? What word names a gift of money or property to a university, usually invested to provide lasting income? Ingmar Bergman and Kenneth Branagh both directed film versions of which Mozart opera? A bergschrund is a crevasse found in which natural feature?