Yes, but you are supposed to go see your doctor after 4!
No. Blood stops running through the body when ur dead. Which means blood can't go to the penis.
Depends on how hard you push
Yes it is possible. I did it before! Actually it was more about 60 hours. But very tiring though.
Stay in what? More information needed. It's none of your business why my penis wont stay in
It is possible, but stay positive during this hard time
You work hard stay after hours do better than every body
the hard drives can be switched and what ever was on them will stay on them.
Viagra will stay in your blood with a possible effect for a duration of 20 to 30 hours. We can consider an effect of 24 hours.
It's in their primal nature to stay single and mate as often as possible.
Your penis is a Muscle..So no really food, your penis is always going to stay hard, well at least when erected.
If you are young and in a sexualy arousing situation you penis may coninue to stay hard even after you have just ejaculated. As you get older this is less likely, especially if you are not in a sexually arousing situation but after a short "recovery period" your penis will usually become erect pretty quickly if it is stimulated.
Effects typically wear off in about 4 hours. How long you stay hard during that period depends on your stimulation.