CREATE TABLE "pool_e" (
  "date" text,
  "score" text,
  "set_1" text,
  "set_2" text,
  "set_3" text,
  "total" text
);

Question: What is the score of set 3 when the total is 45–31?
SQL: SELECT "set_3" FROM "pool_e" WHERE "total"='45–31';

Question: What is the score for set 2 when set 3 was 15–6?
SQL: SELECT "set_2" FROM "pool_e" WHERE "set_3"='15–6';

Question: What is the total when the score of set 1 was 15–11?
SQL: SELECT "total" FROM "pool_e" WHERE "set_1"='15–11';

Question: What is the total when the score of set 1 is 15–11?
SQL: SELECT "total" FROM "pool_e" WHERE "set_1"='15–11';

Question: On what date was the total 25–45?
SQL: SELECT "date" FROM "pool_e" WHERE "total"='25–45';