What is a hockey puck made out of?

Question: What is a hockey puck made out of?

Options:

Iron
Rubber
Plastic
Water

Correct answer:

Rubber

Other mobile game answers:
Find the answers to emoji quiz answers, 600 celebs, guess the gif answers.
You can find other questions and answers of trivia crack at trivia crack cheats (other languages are also available, for this game).