Table: charl_tournaments
Columns: date
tournament
winning_score
margin_of_victory
runner_s_up

Question: What is Winning Score, when Tournament is Joburg Open 1, and when Date is 17 Jan 2010?
SQL: SELECT "winning_score" FROM charl_tournaments WHERE "tournament" = 'joburg open 1' AND "date" = '17 jan 2010'

Question: What is Date, when Tournament is Alfred Dunhill Championship 1?
SQL: SELECT "date" FROM charl_tournaments WHERE "tournament" = 'alfred dunhill championship 1'

Question: What is Tournament, when Margin is Victory of 6 Strokes?
SQL: SELECT "tournament" FROM charl_tournaments WHERE "margin_of_victory" = '6 strokes'

Question: What is Winning Score, when Date is 17 Jan 2010?
SQL: SELECT "winning_score" FROM charl_tournaments WHERE "date" = '17 jan 2010'

Question: What is Tournament, when Runner(s)-Up is Garth Mulroy?
SQL: SELECT "tournament" FROM charl_tournaments WHERE "runner_s_up" = 'garth mulroy'

Question: What is Runner(s)-Up, when Margin of Victory is 1 Stroke, and when Tournament is Joburg Open 1?
SQL: SELECT "runner_s_up" FROM charl_tournaments WHERE "margin_of_victory" = '1 stroke' AND "tournament" = 'joburg open 1'