Table: gopher_football_spears
Columns: date
opponent
site
result
attendance

Question: What is the Date at memorial stadium • minneapolis, mn with an Attendance of 20,000, and a Result of w52-0?
SQL: SELECT "date" FROM gopher_football_spears WHERE "site" = 'memorial stadium • minneapolis, mn' AND "attendance" = '20,000' AND "result" = 'w52-0'

Question: What is the Opponent name at memorial stadium • minneapolis, mn on 10/20/1928?
SQL: SELECT "opponent" FROM gopher_football_spears WHERE "site" = 'memorial stadium • minneapolis, mn' AND "date" = '10/20/1928'

Question: What is the Attendance number when the Opponent was purdue?
SQL: SELECT "attendance" FROM gopher_football_spears WHERE "opponent" = 'purdue'

Question: What is the Site when the Result was w52-0?
SQL: SELECT "site" FROM gopher_football_spears WHERE "result" = 'w52-0'

Question: What is the Attendance on 11/10/1928?
SQL: SELECT "attendance" FROM gopher_football_spears WHERE "date" = '11/10/1928'