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In Israel, Shavuot is 1 day. In the diaspora, it is 2 days.
The Torah forbids working during the yom tov part of Passover (except for cooking and carrying). During chol hamoed, some work can be done, but writing and laundering clothes, among many other things, may not be done.
Jesus entered Jerusalem on a donkey on what is celebrated as Palm Sunday, which is the Sunday before Passover. Passover begins on the 14th day of the Hebrew month of Nisan, which typically falls on a Thursday. Therefore, there are approximately four days between Jesus' entry into Jerusalem and Passover day.
6 days. The festival of Passover is seven days. The first day celebrates the exodus from Egypt and the seventh day commemorates the splitting of the red sea.
In many languages other than English and German, Easter is known either as Passover or a derivative of the word. There is also a Christian festival named Passover, observed by small numbers of Protestants as they believe celebrating the event gives their worship greater authenticity (due to the fact that Christ, as a Jew, would have celebrated Passover) such as the United Church of God.Thus, Jewish Passover is a term used to distinguish the Jewish festival from those of other religious groups that observe the event - among Jews, this is not an issue since we usually refer to it as Pesach.
7 days in the Land of Israel, 8 days in the Diaspora.
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The Seder is eaten the first two nights of Passover outside of Israel, and the first night in Israel.
There is only one country which would consider Passover to be a national celebration, and that is Israel. However, there are many other countries in which Jews celebrate Passover.
In Israel it's celebrated for 7 days while outside Israel, Succot is celebrated for 8 days.
Pentecost is celebrated 50 days after Easter.