Well, main beliefs in Islam are the 5 pillars and 6 articles of faith. Islam is a strictly monotheistic religion.
Five pillars are: Shahada (professing belief in monotheism and that Mohamed is final prophet), Salat (obligatory prayer), zakat (obligatory charity), Sawm during Ramadan (fasting during the Islamic month of Ramadan), Hajj (pilgrimage to Mecca). http://en.wikipedia.org/wiki/Five_Pillars_of_Islam
The six articles of faith in Islam are: Belief in only one God, Belief in all the Prophets and Messengers sent by God, Belief in the Angels, Belief in the Books sent by God, Belief in the Day of Judgment and in the Resurrection, Belief in Destiny/Fate. http://en.wikipedia.org/wiki/Six_articles_of_belief
Judaism is also a strictly monotheistic religion. They believe there is only one God and He is eternal. This site lists some basic Jewish beliefs in an easy to read format: http://www.jewfaq.org/beliefs.htm
Sorry, I don't know anything about Buddhism or Hinduism.