Yep. It is often first noticed when you have an ejaculation (semen squirting out) while you are asleep. Doctors call these 'nocturnal emissions'. In everyday talk, they are called 'wet dreams'. If you experience one, you will know why they are called that.
No, consuming a man's sperm is not beneficial for your health.
No
A man that has had a vasectomy does not release sperm, however, he does ejaculate.
Sperm leave a man's body through the penis.
Sperm is created in the testicles of a man.
Yes, you can get cancer from swallowing a man's sperm if they have Leukemia.
A young, fit and healthy man has no need to worry about increasing his sperm count. Nature will ensure his sperm count is high.
You most certainly can, sperm count has nothing to do with it.
It can if a man has sex more than once or so a day. However, sperm is made everyday, and the old sperm dies, and new sperm is made.
be a man
No. Once the sperm is in the egg no other sperm is allowed in.
The man needs to create sperm and the women needs to create an egg. When intercourse happens, the egg and sperm meet, and implants in the uterus, resulting in pregnancy.