Some of the proper greetings are listed below. I encourage others to add to this list:
L'Shanah Tova - "to a good year"
Khatima Tova - "a good "sealing" [in the book of life]
Tzom Kal - "a light fast"
Gmar Chatima Tova!
Jews don't have churches - they have synagogues, and yes, they go to synagogue during Yom Kippur.
No
The book of Yonah (Jonah) is read during Mincha (the afternoon prayers) of Yom Kippur.
Yes, it is.
The Day of Atonement is Yom Kippur (Leviticus ch.23). This is the holiest day in Judaism and the day where even secular Jews attend synagogue. On Yom Kippur, Jewish people fast from all food and drinks for a complete 25hrs, starting just before sunset the previous day.
Jewish Mexicans do Yom Kippur.
Yom Kippur
The pronounciation of yom kippur is yum-kipp-her.
Yom Kippur is not a person or a country, it is a holiday. The Egyptians chose to invade Israel on Yom Kippur because of its solemnity. They expected the Israelis to be unprepared on Yom Kippur, which was indeed the case.
First, we want to make sure that you don't think that Yom Kippur is a month. Yom Kippur is a single day, in the Hebrew month of Tishrei. Elul (אלול) is the month preceding Tishrei and all the days in it, including Yom Kippur.
Jewish Mexicans celebrate Yom Kippur.
Yom Kippur literally means "Day of Atonement".