>What are the volumes of an egg (ke-betzah) and an olive (ke-zayis)?
There are two views about the volume of an egg; it's either 58 cc (cubic
centimeters) or 100 cc. (According to the latter view, eggs in the
time of the Talmud were about twice their size today.) The volume of
an olive is either half or a third that of an egg.