Yes. Actor Tony Randall fathered children in his very late age, and there are many other examples that exist. Old men definitely produce sperm that is very capable of completing the requirements of...
Boys will start producing sperm once they reach puberty. It may not be instant as soon as you start but you will sometime during it. Puberty can start anytime from 12 to 16in boys.
Try Vitamin E - 400 mg a day during 3 months. And Vitamin C 200 mg a day during 3 months also. - Take tomato juice once a day, during 3 months. Do not strain. After all, what's your age ? Production...
This depends on how advanced your puberty is. Most boys have started puberty by around 13-years-old so not long after that. Everyone is growing at different rates though so please be patient if you...