Judaism has many festivals (see Leviticus ch.23). The Jewish weekly special day is the Jewish Sabbath, which is on Saturday (from Friday sundown until Saturday after twilight).
we say hallel
Traditional Jews don't only go on Saturdays. They go up to 3 times a day, every day. Most Jews go to synagogue on Saturday because it's the 7th day of the week, and Jews believe the 7th day is a day of rest (called the Sabbath). It's a special day with good food, study, prayer, and lots of socializing.
The Muslims pray five times each day. It is obligatory. They offer a special prayer on Friday every week. So, you may say that Friday is a special day for the Muslims as Saturday is for the Jews and Sunday is for the Christians.
Jews do indeed wear special things after the bar Mitzvah, depending on the day of the week the bar Mitzvah is on. Mon-Wednesday they wear a dinosaur costume, and the other days of the week they have to wear a chicken mask at all hours of the day until they can recite the purple Irishman's code by heart.
No no no no no no no no
Nothing, Jews were people, not products.
For the hat they wear a skullcap.Then they wear a prayer shawl
"sho-FAHR"
Israel.
Jerusalem
Jews pray 3 times a day.
Yes. Synagogue services are held every day of the year; and special prayers and Torah-readings are added during Hanukkah.