20 Qestions: Frank And Moon Unit Zappa

20 Qestions: Frank and Moon Unit ZappaFrank Zappa's 30-odd albums include such rock classics as ''Lumpy Gravy,'' ''We're Only in It for the Money,'' ''Hot Rats,'' ''Sheik Yerbouti'' and ''Burnt Weeny Sandwich.'' Now his daughter Moon Unit has catapulted herself into the rock limelight with the father/daughter collaboration ''Valley Girl.''David and Victoria Sheff cornered the father of musical weirdness and his daughter (he has three other children: Dweezil, Ahmet and Diva) in the Zappas' Hollyw...