are male oyster able to produce eggs?

Answer 1

Actually, yes they can! It depends on the type of oyster. Some kinds of oysters are hermaphrodites and can alternate between being male and female, so one oyster can fertilize its own eggs:

http://encarta.msn.com/encyclopedia_761559707/Oyster.html
http://www.cuisinenet.com/digest/ingred/oyster/nat_hist.shtml

(If you don't know an answer, look it up! Don't guess!)

Answer 2

no males never lay egg

Answer 3

They're males, so obviously no.