CREATE TABLE "schedule" (
  "week" real,
  "date" text,
  "opponent" text,
  "result" text,
  "attendance" text
);

Question: Tell me the opponent for attendance of 68,264
SQL: SELECT "opponent" FROM "schedule" WHERE "attendance"='68,264';

Question: Tell me the sum of week for result of l 24–21
SQL: SELECT SUM("week") FROM "schedule" WHERE "result"='l 24–21';

Question: Tell me the result for attendance of 54,462
SQL: SELECT "result" FROM "schedule" WHERE "attendance"='54,462';

Question: Tell me the opponent for attendance of 53,899
SQL: SELECT "opponent" FROM "schedule" WHERE "attendance"='53,899';