Table: bengals_1968_season
Columns: week
date
opponent
result
venue
attendance
record

Question: What date was the week 6 game played on?
SQL: SELECT "date" FROM bengals_1968_season WHERE "week" = 6

Question: What week was the game played at Mile High Stadium?
SQL: SELECT "week" FROM bengals_1968_season WHERE "venue" = 'mile high stadium'