CREATE TABLE "pga_tour_wins_11" (
  "date" text,
  "tournament" text,
  "winning_score" text,
  "margin_of_victory" text,
  "runner_s_up" text
);

Question: What was the margin of victory when the winning score was –10 (70-72-68-68=278)?
SQL: SELECT "margin_of_victory" FROM "pga_tour_wins_11" WHERE "winning_score"='–10 (70-72-68-68=278)';

Question: When Gary Player was the runner-up, what was the margin of victory?
SQL: SELECT "margin_of_victory" FROM "pga_tour_wins_11" WHERE "runner_s_up"='gary player';

Question: In what tournament was the winning score –10 (68-71-69-70=278)?
SQL: SELECT "tournament" FROM "pga_tour_wins_11" WHERE "winning_score"='–10 (68-71-69-70=278)';