CREATE TABLE "results_pool_f" (
  "date" text,
  "score" text,
  "set_1" text,
  "set_2" text,
  "set_3" text,
  "set_4" text,
  "set_5" text,
  "total" text
);

Question: What date has a set 4 of 25-19?
SQL: SELECT "date" FROM "results_pool_f" WHERE "set_4"='25-19';

Question: What is the total for the set 2 of 25-18?
SQL: SELECT "total" FROM "results_pool_f" WHERE "set_2"='25-18';

Question: What is the total for set 2 of 25-19?
SQL: SELECT "total" FROM "results_pool_f" WHERE "set_2"='25-19';

Question: What is set 3 when set 5 is na, set 1 is 21-25, and set 2 is 25-16?
SQL: SELECT "set_3" FROM "results_pool_f" WHERE "set_5"='na' AND "set_1"='21-25' AND "set_2"='25-16';

Question: What is the set 1 for the date jun 26, and a set 2 of 25-16?
SQL: SELECT "set_1" FROM "results_pool_f" WHERE "date"='jun 26' AND "set_2"='25-16';

Question: What is the total for set 2 17-25?
SQL: SELECT "total" FROM "results_pool_f" WHERE "set_2"='17-25';