yes, you only need to the sperm to fertilize an egg
In general, modern Jews still believe and practice circumcision.
Ask the doctor.
For a baby: Most pediatricians or OB/GYNs can perform a circumcision. For and adult: A urologist is the doctor to consult.
The person is called a sandek.See also the Related Link.More about Jewish circumcision
In Jewish Law, the baby is Jewish because of the mother, so he can have the ritual circumcision.
No.
Unfortunately, yes.
A bris is a Brit Milah or Circumcision ceremony (Bris is the ashkenazic pronunciation). So a Bris party is the celebration that is had upon the circumcision of a newborn baby boy.
A bris is the ceremony of circumcision when a male baby is 8 days old
Circumcision is done for several reasons, although the only real advantage (long and short term) would be hygiene. When circumcised, it's easier to keep the penis clean, since there is no foreskin to have to clean under. Some do it for aesthetic reasons, feeling the penis looks better without the foreskin. There are also religions that require circumcision on a male, such as the Jewish faith. The circumcision is performed by the Rabbi when the baby is still only a few days old.
They know about the benefits of male circumcision for both sexes.
Circumcision has nothing to do with catching diseases.