CREATE TABLE "singles_performance_timeline" (
  "tournament" text,
  "2006" text,
  "2007" text,
  "2008" text,
  "2009" text,
  "2010" text,
  "2011" text,
  "2012" text
);

Question: What 2009 has statistics by surface in 2012?
SQL: SELECT "2009" FROM "singles_performance_timeline" WHERE "2012"='statistics by surface';

Question: What 2001 has a ATP World Tour Masters 1000 2007?
SQL: SELECT "2011" FROM "singles_performance_timeline" WHERE "2007"='atp world tour masters 1000';

Question: What 2010 has an A 2006 & 2011?
SQL: SELECT "2010" FROM "singles_performance_timeline" WHERE "2006"='a' AND "2011"='a';

Question: What 2009 has a 0 in 2008 & 2010?
SQL: SELECT "2009" FROM "singles_performance_timeline" WHERE "2010"='0' AND "2008"='0';