Table: volleyball_world_league_match_8
Columns: date
score
set_1
set_2
set_3
set_4
set_5
total

Question: What is Date, when Set 2 is 25-13?
SQL: SELECT "date" FROM volleyball_world_league_match_8 WHERE "set_2" = '25-13'

Question: What is Total, when Set 5 is NA, and when Set 2 is 25-13?
SQL: SELECT "total" FROM volleyball_world_league_match_8 WHERE "set_5" = 'na' AND "set_2" = '25-13'

Question: What is Score, when Date is Jun 16, and when Set 4 is 25-20?
SQL: SELECT "score" FROM volleyball_world_league_match_8 WHERE "date" = 'jun 16' AND "set_4" = '25-20'

Question: What is Set 2, when Score is 3-0, when Date is May 11, and when Set 1 is 25-20?
SQL: SELECT "set_2" FROM volleyball_world_league_match_8 WHERE "score" = '3-0' AND "date" = 'may 11' AND "set_1" = '25-20'

Question: What is Set 4, when Set 1 is 25-18, and when Date is Jun 2?
SQL: SELECT "set_4" FROM volleyball_world_league_match_8 WHERE "set_1" = '25-18' AND "date" = 'jun 2'