Yes! They live all over the world. There are an estimated 1-1.5 million Orthodox Jews.
The population is becoming fewer and fewer, but Orthodox Jews try to increase the population by having large families.
Approximately 13 percent of American Jews and 25 percent of Israeli Jews are Orthodox.
This means that roughly 700,000 American Jews are Orthodox.
Fewer than 100 years ago, but there are Jews that do return to Orthodox circles. There are, worldwide, perhaps one million or one and one-half million religious Jews.
Good question. My own estimate is perhaps one million, worldwide.
Saturday is the Sabbath in Judaism. Orthodox (and some non-orthodox) Jews will not work. Many non-Orthodox Jews will work, but still remember the Sabbath day in their own ways. (And yes, there are some Orthodox Jews that work on Saturdays, but they do not advertise this fact).
Yes, mostly Orthodox Jews. Italy's Jewish community is estimated at about 45,000 as of today (2014).
No.
The menorah in the temple was lit with pure olive oil
Yes, non-Orthodox Jews can become Orthodox by becoming more observant. Non-Jews can become Orthodox Jews through Orthodox conversion.
Orthodox Jews are strictly observant. Hassidic Jews are even more strict.
Orthodox and Ultra-Orthodox Jews are strict followers of Jewish law.
Unfortunately, in Israel, only Orthodox Jews get all the special privileges.
They are Jews who keep the Torah.
That depends on the countries and on whether the Jews were orthodox or Reform. In Germany, for example, the majority of Jews were NOT orthodox and dressed very inconspicuously - as in many other countries.
You can't really answer a question like that. All orthodox sects look different from one another. Search Hasidic, Haredi, or Satmar in Google. These are only a few of the many Orthodox sectsThere are many different groups of Orthodox Jews, so it depends which group they come from.
Haredi Jews are ultra orthodox Jews found around the world.