The Sabbath.
They celebrate Shabbat and Havdalah.
Slightly less than the percentage of Jews in each country (since Hanukkah is a Jewish festival and most but not all Jews celebrate it).
Almost all Jews celebrate Hanukkah.
They don't. Jews believe that Jews should celebrate Hanukkah.
the seventh day of the week- Saturday! the Jews celebrate that god rested after finishing to create the world
Once each year for eight days.
The Sabbath- from Dusk on Friday to Saturday
All Orthadox Jews Celebrate Chanukkah, almost all non-Orthodox Jews also celebrate it as well.
Jews in California celebrate Yom Kippur the same way that Jews the world over celebrate Yom Kippur.
They go with their families for a party and celebrate with wine and goose! They give each other jupons!
There are always Jews who celebrate Passover regardless of the location or circumstances. Jews celebrated Passover in the ghettos, and then in the concentration camps.
Irish Jews celebrate Passover the same way as Jews all over the world.