Note: I won't change the following answers, but the truth is that the Jews are not against the Muslims. There is nothing in the Jewish religion that teaches us to be against Muslims. If a Jew is against a Muslim, that person acts outside of Judaism.
Answer A - Christian Answer
If there is an explicit biblical explanation for this animosity, it goes all the way back to Abraham. The Jews are descendants of Abraham's son Isaac. The Arabs are descendants of Abraham's son Ishmael. With Ishmael being the son of a slave woman and Isaac being the promised son who would inherit the blessings of Abraham, obviously there would be some animosity between the two sons. As a result of Ishmael's mocking Isaac , Sarah talked Abraham into sending Hagar and Ishmael away. Likely, this caused even more contempt in Ishmael's heart towards Isaac. An angel prophesied to Hagar that Ishmael would "live in hostility toward all his brothers"
Answer B - Muslim Answer
Historically: they were informed in their scriptures that a last prophet will be sent by God. They wished the last prophet to be from Isaac descendants. However, the last prophet, Muhammad (peace be upon him), is from the Ismael (Ishmael), and not Isaac, descendants. Accordingly, they felt that they are losing their influence on the people of the area. consequently, they started fighting and plotting against prophet Muhammad and Muslim followers to the extent that they cooperated with the non believers against him.
Politically: since the establishment of the country of Israel in the Middle East on the lands that originally belonged to the Palestinian people and getting control of the Muslim sacred Mosque in Jerusalem they are trying to maintain military power superiority over Muslims.
Hint on Answer A above:
Answer C - Muslim Answer
Jews are against Muslims because they are dependent on the economic system which is based on interest (riba, sood) and now in the world they have fear of Islamic ideology in which the interest / riba is strictly prohibited (Haram) that's why Jews want to remove Islamic ideology. they have done same of this with the Jesus Christ and they are doing it by banking system
yes same as the jews its called halal and the jews call theirs kosher
No, there are more Muslims living in Europe than there are Jews.
It is not true that Muslims want to kill the Jews or any other faith people; whether worshiping same God or different God or not worshiping any God or whether polytheist or monotheist or atheist.. Refer to question below for more information.
Muslims and Jews don't eat pork. Muslims eat shellfish, but Jews don't.
There are more Muslims in he world than Jews. There are about 1.57-1.65 billion Muslims in the world and only about 14-18 million adherents to Judaism.
Jerusalem is considered holy by Muslims, Jews, and Christians.
How did Jews and Muslims react to the royal orders of expulsion
No. Mosques are used by Muslims as their place of worship, not by Jews. Jews pray in synagogues.See also:More about Jewish prayer and synagogues
Why did who kill which Jews .
Christans , Jews, Muslims, Non Muslims
Muslims perform group ritual prayers in Mosque (Masjid) and the Jews in synagogue.
Yes. Al-Qaeda claims that all Jews are part of Zionist Conspiracy to rule the world and kill all Muslims, which is both absurd and reeks of Anti-Semitism.