If you are talking about the Ancient Israelites, the Torah says they were given manna in the desert. If you are not talking about the Israelites, than I don't know what you're asking.
Yes, religious Jews do.
The Exodus is mentioned in the daily prayers and is given in the Torah (Exodus ch.12) as the motivation for many of the mitzvos (commands).
No, no one goes to mikvah on a daily basis.
falashas
The Holocaust
Hitler treated the Jews as outcasts. The Jews were persecuted and then subjected to restrictions that anyone else were not given.
He lost it.
Jammers
Nazis had to give information to Jews, otherwise the Jews would not know where to go to.
Eating kosher.
Righteous Gentiles: chasidei umos haolam.
Jews believe in God. The word Yahweh, Jehovah, and all variations are Christian words that have never been used by Jews. In daily conversation most Jews use the name HaShem to refer to The Creator.