All the Jewish festivities:Tu B'Shevat, National Holocaust Memorial Day, Purim, Pesakh, Yom Hashoah, Shavuot, 17th of Tammuz, Tisha B'Av, Rosh Hashanah, Yom Kippur, Sukkot, Shemini Atzeret, Simkhah Torah, Hannukkah.
In Israel it's celebrated for 7 days while outside Israel, Succot is celebrated for 8 days.
Yes, since Israel is the Jewish State.
Passover is celebrated on the 15th of nissan, corresponding to about April, give or take a month. In Israel, Passover is celebrated for seven days. In the diaspora (outside of Israel), it is celebrated for eight days. (Nissan is the first month of the year, but calculations for the calendar are complicated.)
It is celebrated on the Jewish Calendar which is lunar based.
Christmas is not a public holiday in Israel. It's only celebrated by a small Christian minority, who usually celebrate in private.
The holiday symbolizes the acceptance of the Torah at Mount Sinai, and is mainly celebrated today in Israel.
Christmas isn't celebrated in Israel because it is a Jewish country. Christmas in Israel is only celebrated by the small Christian minority, who celebrate it very privately. They most likely eat the foods of the countries they came from.
Israel's Christian community celebrates Easter, just as they do Christmas, but neither of these is a national holiday in Israel, and neither is celebrated by the Jewish community.
Passover was and is celebrated according to God's command (Exodus ch. 12).
Birthdays were not customarily recognized or celebrated in the Old Testament so Jacob/Israel's birthday is unknown. If you are referring to the modern Nation-state of Israel, then it was declared 14 May 1948 and recognized by the U.N. on 15 May 1948.
Mother's Day in Israel (known as Yom Ha'em) is marked on Shevat 30. This can fall anywhere between January 30 and March 1.
It is actually called Shavuot, not Shavout. Mount Sinai, in Israel is the originating location of Shavuot. It celebrates the day, or two days (outside of Israel), when God gave Torah to Moses. Because it originated in Israel, it is celebrated in one day by Jews of Israel, and in two days by Jewish people outside Israel.