CREATE TABLE "past_winners" (
  "year" text,
  "men_s_singles" text,
  "women_s_singles" text,
  "men_s_doubles" text,
  "women_s_doubles" text,
  "mixed_doubles" text
);

Question: Who won the Men's singles in the year that Ian Maconachie Marian Horsley won the Mixed doubles?
SQL: SELECT "men_s_singles" FROM "past_winners" WHERE "mixed_doubles"='ian maconachie marian horsley';

Question: Who won the Women's singles, in the year that Raymond M. White won the Men's singles and that W. Hamilton Ian Maconachie won the Men's doubles?
SQL: SELECT "women_s_singles" FROM "past_winners" WHERE "men_s_singles"='raymond m. white' AND "men_s_doubles"='w. hamilton ian maconachie';

Question: Who won the Women's doubles in the year that Billy Gilliland Karen Puttick won the Mixed doubles?
SQL: SELECT "women_s_doubles" FROM "past_winners" WHERE "mixed_doubles"='billy gilliland karen puttick';

Question: Who won the Women's doubles in the year that David Eddy Eddy Sutton won the Men's doubles, and that David Eddy won the Men's singles?
SQL: SELECT "women_s_doubles" FROM "past_winners" WHERE "men_s_doubles"='david eddy eddy sutton' AND "men_s_singles"='david eddy';

Question: Who won the Women's doubles in the year that Jesper Knudsen Nettie Nielsen won the Mixed doubles?
SQL: SELECT "women_s_doubles" FROM "past_winners" WHERE "mixed_doubles"='jesper knudsen nettie nielsen';