Table: argentina_football_2
Columns: home_1st_leg
home_2nd_leg
1st_leg
2nd_leg
aggregate

Question: What was the score of the 2nd leg when Newell's Old Boys played at home?
SQL: SELECT "2nd_leg" FROM argentina_football_2 WHERE "home_2nd_leg" = 'newell''s old boys'

Question: Who played at home for the second leg, with a score of 1-1 on the first leg and an aggregate score of 2-4?
SQL: SELECT "home_2nd_leg" FROM argentina_football_2 WHERE "1st_leg" = '1-1' AND "aggregate" = '2-4'

Question: Which team played at home for the second leg and has aggregate score of 2-0?
SQL: SELECT "home_2nd_leg" FROM argentina_football_2 WHERE "aggregate" = '2-0'

Question: What was the score on the first leg when gimnasia de mendoza played at home for the second leg?
SQL: SELECT "1st_leg" FROM argentina_football_2 WHERE "home_2nd_leg" = 'gimnasia de mendoza'

Question: Which team played at home for the second leg and has an aggregate score of 2-4?
SQL: SELECT "home_2nd_leg" FROM argentina_football_2 WHERE "aggregate" = '2-4'

Question: What was the 2nd leg score when atlético tucumán played at home?
SQL: SELECT "2nd_leg" FROM argentina_football_2 WHERE "home_2nd_leg" = 'atlético tucumán'