Question: What lane did the Barbados swimmer compete in before heat 3?
SQL: SELECT "Lane" FROM "2-18624901-3" WHERE "Heat" < 3.0 AND "Nationality" = 'Barbados';

Question: What was the time of the 5th ranked swimmer who swam after heat 3 and was in a lane under 5?
SQL: SELECT "Time" FROM "2-18624901-3" WHERE "Heat" > 3.0 AND "Lane" < 5.0 AND "Rank" = 5.0;