Table: gunawan_tournaments
Columns: 22_06_2008
indonesia_super_series_2008
s_series
7800_00
runner_up

Question: Which series occurred when the 7800 was 5040.00?
SQL: SELECT "indonesia_super_series_2008" FROM gunawan_tournaments WHERE "7800_00" = '5040.00'

Question: Which series occurred in which the semi-finalist was runner-up and the 7800.00 was 6420.00?
SQL: SELECT "indonesia_super_series_2008" FROM gunawan_tournaments WHERE "runner_up" = 'Semi-Finalist' AND "7800_00" = '6420.00'

Question: Which s.series occurred on 06/05/2007?
SQL: SELECT "s_series" FROM gunawan_tournaments WHERE "22_06_2008" = '06/05/2007'