CREATE TABLE table_name_94 (weeks_on_top INT, issue_date_s_ VARCHAR)

Which Weeks on Top have an Issue Date(s) of 20 november?
SELECT SUM(weeks_on_top) FROM table_name_94 WHERE issue_date_s_ = "20 november"
SELECT SUM("weeks_on_top") FROM "table_name_94" WHERE "20 november" = "issue_date_s_"