Nothing. Christmas has no significance to Jews, Orthodox or not. There is a modern secular Jewish tradition to eat (kosher) Chinese food on Christmas and to go to movies. There is an older tradition that marks Christmas Eve as Nittel Nacht, during which Torah study is avoided in favor of pointless activities such as playing cards. The Talmud forbids (in tractate Avodah Zarah) forbids even the appearance of honoring idolatrous festivals or contributing to their observance. Christianity is not classified as being idolatrous, but there are a sufficient number of problematic Christian practices (and even more problematic beliefs) that many of these prohibitions apply, at least in part.
No he was not a Jew he was eastern orthodox which is a christian church.
Bury them
The term "normal Jew" has no actual meaning.If the question intends to ask about the differences between Reform Jews and Orthodox Jews, there are certainly more requirements and difficulties inherent in being an Orthodox Jew.
A non-Orthodox Jew is a Jew who either does not believe in the binding nature of Halacha (Jewish Law) or who believes in Halacha but interprets the rules in a more modern fashion. Non-Orthodox Jews generally place a large amount of value on personal responsibility.
No.
Yes. he is an Orthodox Jew.
No, and neither is his father.
By religion it is ok for an Orthodox Jew to put their baby up for adoption, but to Jewish adoptive parents.
No. Any Jew may become Orthodox, by dint of observing the Torah. It would be a good idea to have the counsel of other Orthodox Jews or a Rabbi; and to join a congregation. The above applies also to any former non-Jew who has converted to Judaism according to Jewish law.
Not for an Orthodox Jew.
no
She was raised as an Orthodox Jew. Whether that view persisted after the traumas she suffered during and after the Holocaust, especially given her career in sex therapy, is doubtful.