There are many teachings, but short version: There is One God, listen to HIM.
If you have access to a Judeo-Christian Bible, the basic tenets of the religion are contained in Exodus 20:2-17. These verses are the Cliff Notes of the entire religion. From this list, the book of Leviticus expands and expounds on the particulars and practices.
The first five books of the Judeo-Christian Bible are known as the Torah--THE Teachings. These books relate the history of the Jews, the Laws and their applications. From these five books have come many thousands of commentaries and opinions about current Judaism. As the old saying goes, "Two Jews, three opinions."
The single most basic Jewish teaching is that God, who is One (Deuteronomy 4:6), created the universe (Genesis 1:1) and gave the Torah (Exodus 24:12). The rest of Judaism revolves around this. For more:
What_are_the_key_teachings_practices_principles_and_beliefs_of_Judaism
The faith of the Jews is called Judaism. It is centered on the belief in one ethical God.
Al shlosha devarim haolam omaid: al haTorah v'al haavodah v'al gimilute chasadim
On three things does the world stand: Torah, work/worship and acts of kindness
When God spoke to the Jews on Mount Sinai.
Divine Revelation. Judaism gets its basis from God having given the Torah (Exodus 24:12).
By obeying (as much as they can out of) the 613 commandments, which are the basis of the Jewish law.
The homeland of Jewish Faith is Israel.
The Jewish faith focuses on God for spiritual guidance and the Torah that He provided for the Jewish people.
To people of the Jewish faith, certainly. This is a question of faith and naturally those who have faith in God as described by Jewish teachings will claim Him to be True. Those who do not have faith in this God or have faith in a different god or gods will claim Him to be False. Only you can decide which is true.
The faith of Jesus Christ was Jewish. Everyone in Israel back then were all Jewish.
The leader of the Jewish faith is called Rabbi.
The Star of David does not support the Jewish faith. It is only a symbol of national pride.
No, Jill Biden was not raised Jewish. She was raised Catholic and continues to practice that faith.
There is no such faith as "Boutitham"
Yes, there is a small immigrant Jewish community.
Israel.
Israel.