Question: What year was the building with a top 3 rank and a height of 274 (84) ft (m) completed?
SQL: SELECT MAX("Year Completed") FROM "2-136320-2" WHERE "Rank" < 3.0 AND "Height ft (m)" = '274 (84)';

Question: How many floors are in the 274 (84) ft (m) building that is ranked number 1?
SQL: SELECT AVG("Floors (Stories)") FROM "2-136320-2" WHERE "Height ft (m)" = '274 (84)' AND "Rank" > 1.0;

Question: Which is the highest ranked building with more than 15 floors?
SQL: SELECT MAX("Rank") FROM "2-136320-2" WHERE "Floors (Stories)" > 15.0;