How many sons and daughters did Job have?

20 all together.

Job 1:1, 2 - There was a man in the land of Uz, whose name was Job; and that man was blameless and upright, and one who feared God and shunned evil. And seven sons and three daughters were born to him." [NKJV] and 10 more AFTER his test (Job 42:13)."