user: ### NOW ANSWER:
Question: In what Week were there more than 23875 in Attendance at Memorial Stadium with Detroit Lions as the Opponent?
Columns: ['Week', 'Date', 'Opponent', 'Result', 'Record', 'Game Site', 'Attendance']
Types: ['real', 'text', 'text', 'text', 'text', 'text', 'real']
Sample row: [1.0, 'September 26, 1954', 'Los Angeles Rams', 'L 0–48', '0–1', 'Memorial Stadium', 36215.0]
SQL:

assistant: SELECT AVG("Week") FROM "Table" WHERE "Attendance" > 23875.0 AND "Game Site" = 'Memorial Stadium' AND "Opponent" = 'Detroit Lions';