I'm sorry to be the one to tell you this, but applying sperm to skin will have no lasting beneficial effect.
sperm needs to mature enough to reach the egg to form zygote
It depends on the person, but on average men will ejaculate about 1,080 gallons of sperm in their life time.
Provided that you are not suffering from malnutrition, the amount, when or what you eat has nothing to do with your sperm.
how much energy is lost to fall one time sperm
Every time a man ejaculates there is about one teaspoon full.
when the sperm reached your egg...
no. but sometimes the weather may effect the sperm. A lot of people make love in September or June, because that is the best time.
Because you probably ejaculate frequently not allowing much time between ejaculating to produce more sperm. Your sperm isn't infinite, it needs time to produce. Or, on the negative side you have a low sperm count and you should see a doctor.
It spoil our skin and we get hurt and painful i some time is because of smoking
There will not be as much. It takes a day or so to rebuild the numbers.
Try rephrasing your improperly stated question. This makes no sense.
The colours of snail shells have nothing to do with their sex because snails are hermaphrodites, being both male and female and producing sperm and eggs at the same time. To fertilize their eggs most snails need to exchange sperm with another snail.