Roughly speaking. Forever. There are no female bulls.
Only males have sperm. There is no such thing as female sperm.
Sperm can live inside of a female for up to five days after intercourse.
How long sperm can survive in the female body depends on how healthy the sperm are and whether the female is fertile at the time. If there is fertile quality cervical mucus present then sperm can potential survive for up to a week within her body.
Bull semen must be kept frozen in liquid nitrogen to keep it for a long period of time, even after the bull has died.
They can live nearly 70 years or more.
1-5 days
It depends on the heath of the sperm and the conditions in the uterus but most experts seem to agree on 2 to 7 days.
A female will stay on HEAT for 21 days roughly.
Adult Male Sperm Whales can be as long as 20 meters. The average size is around 17 meters and they weigh 40 tonnes or more. Adult Female Sperm whales are on an average 11 meters long and weigh around 14 tonnes.
A regular sperm lives up to 72 hours in the female body. However, most die within the first 12 hours due to the highly acidic vaginal canal.
Male sperm whales, on average, are 16-18 meters long. This is 30-50% longer then females, who range from 12-14 meters from nose to tail. At birth, both make and female sperm whales are about 4 meters long (and 1,000 kilograms in weight!) These whales are huge animals!
A few hours, but I'm not a doctor.