CREATE TABLE "passing" (
  "name" text,
  "gp_gs" text,
  "effic" real,
  "att_cmp_int" text,
  "avg_g" real
);

Question: What was the aveg/g for the qb with the Att-Cmp-Int of 117–215–6?
SQL: SELECT COUNT("avg_g") FROM "passing" WHERE "att_cmp_int"='117–215–6';

Question: What was the total effic for the quarterbacks?
SQL: SELECT MIN("effic") FROM "passing" WHERE "name"='total';

Question: what was the att-cmp-int for the qb with an effic of 127.89?
SQL: SELECT "att_cmp_int" FROM "passing" WHERE "effic"=127.89;