Jews pray only to God, not to any person or prophet. Muslims also pray only to God and definitely do not pray to their prophet!
Jewish people only pray to G-d.
No. It was simply forbidden to pray TO Muhammad.
The only Christians that would pray to Mary are Catholics, so the answer is no. Some Messianic Jews are Catholic, but this is rare. The majority of Messianic Jews are Protestant Evangelicals and pray as they do.
No; Jews pray to God, creator of the universe. Muhammad is associated with Islam, not with Judaism. Judaism has no connection to Muhammad and does not have an official religious position on him other than him not being a prophet. Note that Muslims also do not pray to Muhammad. Muslims pray to Allah (using the Qur'an which they say that Muhammad revealed).
Jews pray to God
Jews pray to God.
Jews pray in a synagogue.
Jews pray to God.
No. Islam just pray only to God (Allah). Same God; the Creator; worshiped by Jews and Christians. There is no human or any other beeing that Muslims pray to. First pillar of Islam five pillars is to worship God as the one and only one God with no partner, no son, no companion, no associate, and no equivalence and to witness that Muhammad is His prophet and messenger. refer to question below.
No, Muhammad plays no role in Judaism.
They pray in the synagogue (a.k.a. Shul).
Christians and Jews believe that there is one true God. Christians and Jews pray to the same God.