Religion Comparison Questions. Which religions believe in a literal heaven? The religions that believe in a literal heaven is Christianity, Mormon and Islam.  Which ones do not? The religions that do not believe in a literal heaven is Hinduism, Buddhism and Judasim.  Which religions worship only one god? The religions that worship only one god is Hinduism, Christianity, Judaism and Islam. Which religions worship more than one or no gods? The religions that worship one or no gods is Buddhism and Mormon. Which religions are judged by god? The religions that are judged by god are: Islam. Which religions believe in recarnation? The religions that believe in recarnation are Hinduism and Buddhiusm. Which religions believe that the achievement of salvation is through own efforts? The religions that believe achievement of salvation is through own efforts are: Hinduism, Buddhism, Mormon and Islam.