There are about 617 laws that are practiced by orthodox Jews.
Most have to do with behavior between each other and/or groups of people. They are reasonable and are not difficult to observe if you believe in, DO UNTO OTHERS AS YOU WANT OTHERS WOULD DO TO UNTO YOU. There are laws regarding certain dietary requirements but this is no different than many other religion's. Laws regarding burial and praying. Laws regarding marriage and divorce, treatment of others, etc.
Generally, all laws are based on the premise, "Do not tell me what you believe. Tell me what you did." It is based on your actions not what you tell me you believe as your actions reveal more than any words you utter. It is all about goodness to others and obeying the commandments. It can be summed up with.... DEEDS NOT CREED.
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Correction:
There are 613 mitzvot in the Torah. Mitzvot are most commonly translated as commandments but a more accurate translation is 'guidelines'. Outside of the written Torah, there is 'halacha' which are laws and these are essentially no different than any country's legal system.
As for the "do unto others" quote from above, the original Jewish phrase is: "that which is distasteful to you, do not do to others".
Mosaic Jews
The Jewish food laws started 3300 years ago, when the Torah was given. They are still ongoing today because the Torah is for all generations. See also:The Jewish food-laws
I don't know what retrictions are you talking about. Jewish laws or Laws imposed on the Jews by outsiders?
The Jewish belief in the chosen people influenced the laws to a great extent. They believed in being governed directly by God which is what formed most if their beliefs and laws.
The Nuremberg Laws were a series of sanctions against the Jewish people.
The Talmud is the source of the details of the Jewish laws, since in the Torah these laws are stated mostly only in brief.
The Nuremberg laws determined whether a person was Jewish primarily based on the number of Jewish great-grandparents.
Yes.
Not happy
No, however not all Jews follow the Jewish dietary laws.
What kind of question is that? We hold by the same laws that we always have. People still wear traditional clothing. We have to cover ffrom our collar bone down to our knee and and our sleeves have to reach our elbows.
Learn the Torah and observe it laws.