Google Now does surprisingly well on all but the third question, though if you ask "Who is Chelsey Clinton's husband's father" it gets the right answer. Siri p

Google Now does surprisingly well on all but the third question, though if you ask "Who is Chelsey Clinton's husband's father" it gets the right answer. Siri passes every single question, verbatim, to WolframAlpha and it gets none of them right.