ordinary wax.
a menorah is a candle holder. You can't eat on it.
Any candle is acceptable. Some prefer tapers made of beeswax.
a candle
there are nine.
It is called the Shamash. It is used to light all of the other candles on the Menorah or Chanukiah.
A menorah can have any design or words on it. It depends on the menorah. There is no rule about this.
The ninth candle in the menorah is called the Shamash (or "helper" in English.)
The Shamash is the candle that lights the other candles
Each candle represents each of the 8 days of Hanukkah.
The hanukkiah is a type of 'menorah' specially made just for Hanukkah. A menorah is a nine-branched candelabrum (candle holder) used and lit during the eight-day holiday of the Jewish holiday of Hanukkah.
The traditional name is a menorah. Modern (Israeli) Hebrew has added the name "hanukkiah."See also the Related Link.More about Hanukkah
The shamash (helper or attendant) is used to light the Hanukkah menorah or hanukiyah.