CREATE TABLE table_17526 ("Season" TEXT, "Mens singles" TEXT, "Womens singles" TEXT, "Mens doubles" TEXT, "Womens doubles" TEXT, "Mixed doubles" TEXT)

Name the number of mens doubles for 2004/2005
SELECT COUNT("Mens doubles") FROM table_17526 WHERE "Season" = '2004/2005'
SELECT COUNT("Mens doubles") FROM "table_17526" WHERE "Season" = '2004/2005'