Because they want to.
Because it's the religion of our ancestors, and because it is based upon Divine revelation to the entire assembled Israelite nation (Exodus ch.19).See also the Related Link.
Jews.
No, such practices are forbidden in Judaism.
They are called Jews.
People who believe in Judaism are called Jews.
No, Judaism is strong on the belief in the sanctity of life.
The One God that most people believe in.
In English, the preferred term for followers of Judaism is "Jew", plural "Jews", though you'll hear many more colorful terms from certain types of people.
Yes. Belief in God is the central pillar of Judaism (Deuteronomy 6:4, and many other verses). Judaism also believes in the afterlife as well as in its ancient prophets.See also:What do Jews believe God is like?Prophecy in JudaismCan you show that God exists
Followers of Judaism are called Jews.
Israel is 75% Jewish. Jews believe in God. Jesus is not part of Judaism. The Christians in Israel believe in their religion.
Only God is worshiped in Judaism, not any person or anything else. See also:What do Jews believe God is like?
Jewish people belong to the Judaism, so they believe (most of them) in the Jewish stories and bible; but every Jewish man has his own story, so we can't say every Jew has the same history of the Judaism.