<prompt> Qedela umusho olandelayo: UHuber uphinde wathola izindondo eziyishumi kwi-FIL World Luge Championships ngo-1989 ngezindondo ezimbili zegolide Iqembu elixubile:  <response>: Ngo-1989, amadoda double: 1990, isiliva ezine abesilisa double: 1983, 1989, 1993; iqembu Mixed: 1990, futhi zethusi ezine abesilisa olulodwa: 1999, amadoda double: 1991, iqembu Mixed: 1991, 1993. 