Question: What was the earliest year with a note of 18.04 m WL?
SQL: SELECT MIN("Year") FROM "2-18421845-2" WHERE "Notes" = '18.04 m WL';

Question: What venue had a competition of World Junior Championships before 2011?
SQL: SELECT "Venue" FROM "2-18421845-2" WHERE "Year" < 2011.0 AND "Competition" = 'World Junior Championships';