What are the attributes of God(s)?
God is a paradox, knowable and unknowable at the same time.
We assign many attributes to God, but I tend to see them as how we relate to the specific role we are asking God to play at that given time.
There are a set of attributes of mercy we often assign to God, however, based on Exodus when God set Moses in the cleft of the mountain and passed by him:
compassion before a person sins;
compassion after a person has sinned;
mighty in compassion to give all creatures according to their need;
merciful, that humankind may not be distressed;
gracious if humankind is already in distress;
slow to anger;
plenteous in mercy;
truth;
keeping mercy unto thousands;
forgiving iniquity;
forgiving transgression;
forgiving sin;
and pardoning.
Do you believe in angels/demons?
Angels as the messengers of God, yes. Demons not so much.
Both. Humans have both a good inclination and a bad (or possibly better described as a physical) inclination. We need both to survive, but which we choose to follow is up to us.
Is there a Heaven and/or Hell?
I have no clue, and it really doesn't matter to me.
What is your worship/service like?
A set liturgy, public reading from the Torah, the rabbi and others expound on the Torah portion, some times a study session on the Talmud or Jewish philosophy.
Are good works important?
Extremely important.
Does your faith have any teachers/incarnations?
No incarnations, but we have many, many teachers.
Yes.