Alcohol is haram because it is intoxicating and contains a substance that makes people lose their minds. Allah has forbidden everything that harms the body and mind. For more, see the detailed answer.

It is not permissible for a person to start praying when he is resisting the urge to urinate or defecate because Prophet Muhammad said: “You should not pray when food is ready or when resisting the urge to urinate or defecate.”

Music, musical instruments and singing are haram in Islam. This prohibition is supported with evidence from the Quran and the Sunnah. For more, see the detailed answer.