Answer: The arrival of the Israelites to the Red Sea
The last day of the Passover celebrates the arrival of the Israelites (who had successfully escaped slavery in Egypt) to the Red Sea. It's noteworthy to mention that upon getting to the Red Sea, Moses miraculously parted it for the Israelites to get across. During the last day of Passover, women and girls customarily light candles in commemoration of that great event.

Answer: Chametz
One of the most important parts of the tradition of Passover is to thoroughly clean one's house to the point where every crumb of chametz is totally gotten rid of. And what's chametz? It is any leavened food.

Answer: Tears and pain of the Jewish slaves
The dipping of the parsley in salt water during the Seder meal symbolizes the tears and pains of the enslaved Jews in Egypt.

Answer: Two times
Traditionally, everyone present during the Seder meal is required to wash his or her hands twice. The first washing of the hands takes place after the Kiddush. The second takes place just before the matzah is blessed.

Answer: The exodus/freedom of Jews from slavery in Egypt.
Passover commemorates how Moses safely and successfully led the Jews out of Egypt, where they had spent centuries living in slavery under various Egyptian Pharaohs.

Answer: Leavened foods
Leavened foods, also known as chametz, are strictly forbidden during Passover. Chametz is any food made with leaven/yeast/baking powder. Good examples of chametz include the likes of cake, pizza, ordinary bread (containing yeast) and cereal. The reason leaven foods are forbidden is because when the Jews were escaping from Egypt, they were in such a haste that they had very little time to allow the dough of their bread to rise.

Answer: Freedom
In the olden days, only a free person had the privilege to recline during meals. The servants and slaves, on the other hand, would often stand. Owing to this, the reclining position Jews assume at the Seder table is in celebration of the fact that they are free and no longer slaves.

Answer: Passover Seder
The Passover Seder is the Jewish ritual dinner that is enjoyed on either the first night or the first and second nights of Passover. In Israel, the Seder is held only on the first night of Passover.

Answer: Elijah
An empty chair is often left at the Passover Seder table for Prophet Elijah. This empty seat is traditionally at the head of the table. In addition to this seat, a cup of wine is placed untouched at the table for Elijah. Based on the teachings of Judaism, it is believed that someday, Prophet Elijah will take his sit on that empty chair and announce the arrival of King Messiah (also known as Moshiach in Hebrew).

Answer: Jews
Passover is primarily celebrated by Jews around the globe. It is one of the most popular and widely celebrated of all Jewish holidays.