CREATE TABLE table_20994 ("Year" FLOAT, "Mens Open" TEXT, "Womens Open" TEXT, "Mixed Open" TEXT, "Mens u20" TEXT, "Womens u20" TEXT, "Senior Mixed" TEXT, "Mens 30" TEXT, "Womens 30" TEXT, "Mens 35" TEXT, "Womens 35" TEXT, "Mens 40" TEXT, "Womens 40" TEXT, "Mens 45" TEXT, "Mens 50" TEXT)

How many times was the mens u20 recorded when the Womens 40 were Sydney Scorpions def North Queensland Cyclones?
SELECT COUNT("Mens u20") FROM table_20994 WHERE "Womens 40" = 'Sydney Scorpions def North Queensland Cyclones'
SELECT COUNT("Mens u20") FROM "table_20994" WHERE "Womens 40" = 'Sydney Scorpions def North Queensland Cyclones'