CREATE TABLE table_5345 ("Year" CLOB, "Men's singles" CLOB, "Women's singles" CLOB, "Men's doubles" CLOB, "Women's doubles" CLOB, "Mixed doubles" CLOB)

Who was the men's single in 1940?
SELECT "Men's singles" FROM table_5345 WHERE "Year" = '1940'
SELECT "Men's singles" FROM "table_5345" WHERE "Year" = '1940'