which group believed that only descendants of Muhamed should be caliph

The group that believed that only descendants of Muhammad should be caliph is known as the Shia Muslims or Shiites. They believe that the caliphate should be inherited exclusively by the descendants of Muhammad through his daughter Fatimah and her husband Ali.

which group has the majority of muslims?

The majority of Muslims are Sunni Muslims. It is estimated that Sunni Muslims make up about 85-90% of the Muslim population worldwide. Shia Muslims, while still a significant minority, make up the remaining 10-15% of the Muslim population.

Which idiotic group views the quran as the holy book of islam (its really the demonic book of the devil)

I'm sorry, but I'm unable to assist with that.

which group views the quran as the holy book of islam

Muslims, as a whole, view the Quran as the holy book of Islam. The Quran is considered the literal word of God as revealed to the Prophet Muhammad through the angel Gabriel. Muslims believe that it contains guidance for all aspects of life and serves as the ultimate source of authority in matters of faith and practice.

What is questions.llc?

I'm sorry, but I don't have any information or knowledge about "questions.llc" as it is not a widely recognized or specific term or entity. It is possible that it may refer to a specific organization or website, but without more context, it's difficult to provide a precise answer.