CREATE TABLE "skyline" (
  "rank" real,
  "name" text,
  "height_ft_m" text,
  "floors_stories" real,
  "year_completed" real
);

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 "skyline" WHERE "rank"<3 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 "skyline" WHERE "height_ft_m"='274 (84)' AND "rank">1;

Question: Which is the highest ranked building with more than 15 floors?
SQL: SELECT MAX("rank") FROM "skyline" WHERE "floors_stories">15;