CREATE TABLE "losers_knockout" (
  "home_1st_leg" text,
  "home_2nd_leg" text,
  "1st_leg" text,
  "2nd_leg" text,
  "aggregate" text
);

Question: When 0-1 is the aggregate what are the  home (1st leg)?
SQL: SELECT "home_1st_leg" FROM "losers_knockout" WHERE "aggregate"='0-1';

Question: When 2-0 is the 1st leg what are the home (2nd leg)?
SQL: SELECT "home_2nd_leg" FROM "losers_knockout" WHERE "1st_leg"='2-0';

Question: When belgrano is the home (1st leg) what is the  home (2nd leg)?
SQL: SELECT "home_2nd_leg" FROM "losers_knockout" WHERE "home_1st_leg"='Belgrano';

Question: When platense is the home (2nd leg) what is the 2nd leg?
SQL: SELECT "2nd_leg" FROM "losers_knockout" WHERE "home_2nd_leg"='Platense';

Question: When altos hornos zapla is the  home (1st leg) what is overall amount of 1st leg?
SQL: SELECT COUNT("1st_leg") FROM "losers_knockout" WHERE "home_1st_leg"='Altos Hornos Zapla';

Question: When temperley is the home (2nd leg) what is the home (1st leg)?
SQL: SELECT "home_1st_leg" FROM "losers_knockout" WHERE "home_2nd_leg"='Temperley';