the youngest adult claimant was aged 21, and the eldest aged 79. the age of the youngest children's claim was 8.2 months.. december 2014 (17).: bwire: the major problem at knh is structural and system failures. december 2016 (22). in a never-before-seen video posted by msnbc, bill gates says that president donald trump asked him the difference between hiv and hpv.