✔ 最佳答案
I know a few people who can (I knew one person who had memorised the entire Tanakh as well as most of the Talmud (who sadly died a few years ago at the age of 96) HaRav Moshe Feinstein zs"l was well known for the fact that he had memorised the entirety of the Tanakh, Talmud and many other sources). I is not common, after all, it is a huge volume of work, but there are exceptional individuals that have the ability to memorise that kind of volume.
Me, I know various sections from memory, mainly because they are difficult to lain (lain= read the Torah in the service from a Torah scroll to a specific chant) and repetition in preparing those sections has enabled me to memorise them. Heh, but its far from the entire Torah!
參考: Orthodox Jew; acting Rabbi; Baal Koreh (the reader of the Torah in the synagogue)