CREATE TABLE "doubles_performance_timeline" (
  "tournament" text,
  "2006" text,
  "2009" text,
  "2012" text,
  "2013" text
);

Question: What shows for 2006, when 2013 is 2–4?
SQL: SELECT "2006" FROM "doubles_performance_timeline" WHERE "2013"='2–4';

Question: What shows for 2013 when the 2012 is 2r, and a 2009 is 2r?
SQL: SELECT "2013" FROM "doubles_performance_timeline" WHERE "2012"='2r' AND "2009"='2r';

Question: What is the 2006 when the 2013 is 1r, and the 2012 is 1r?
SQL: SELECT "2006" FROM "doubles_performance_timeline" WHERE "2013"='1r' AND "2012"='1r';

Question: What is the 2006 when the 2013 is 2r, and a Tournament was the us open?
SQL: SELECT "2006" FROM "doubles_performance_timeline" WHERE "2013"='2r' AND "tournament"='us open';

Question: What is the Tournament when the 2013 is 2r, and a 2006 is 1r?
SQL: SELECT "tournament" FROM "doubles_performance_timeline" WHERE "2013"='2r' AND "2006"='1r';

Question: What is the Tournament when the 2013 is 1r?
SQL: SELECT "tournament" FROM "doubles_performance_timeline" WHERE "2013"='1r';