Buddha: The Eightfold Path; right view, right aspiration, right speech, right action, right livelihood, right effort, right mindfulness, right concentration
Hindu: Yoga, contemplation, yagna (communal worship), offerings in the temple.
Buddha: The idea of an omniscient, omnipotent, omnipresent creator is rejected by Buddhists. The Buddha himself refuted the theistic argument that the universe was created by a self-conscious, personal God. Many gods, but realize that they
Hindu: Many gods, but realize that they all come from Atman.
It is not a religious duty to marry. Monks and nuns do not marry and are celibate. Advice in the Discourses on how to maintain a happy and harmonious marriage.
Man may marry one woman. However, kings in mythology often married more than one woman.