Table: lions_1983
Columns: week
date
opponent
result
attendance

Question: On which date was the opponent the Chicago Bears?
SQL: SELECT "date" FROM lions_1983 WHERE "opponent" = 'chicago bears'

Question: Which week was on october 30, 1983?
SQL: SELECT SUM("week") FROM lions_1983 WHERE "date" = 'october 30, 1983'