Question: Round 3 with less than 54 for Round 4?
SQL: SELECT "Round 3" FROM "2-169523-2" WHERE "Round 4" = '54';

Question: Round 4 for larger than 19 Round 1 and a 27 Round 2?
SQL: SELECT "Round 4" FROM "2-169523-2" WHERE "Round 1" > 19.0 AND "Round 2" = '27';

Question: Round 3 with a round 4 of 50?
SQL: SELECT "Round 3" FROM "2-169523-2" WHERE "Round 4" = '50';