Should she continue her studies in a mixed school where there are no Muslims?

She is afraid that her marriage may not be successful because she got to know him before marriage

His sister is studying in a mixed university; should he spend on her?

He took some money from a girl with whom he had a relationship; does he have to give it back?

He got to know a girl through correspondence and wants to marry her, but he is confused by the contradiction between some fatwas about getting married in this way

She formed a relationship with a man over the phone, and she wants advice

Ruling on gifts that she received through her relationship with a man before she got engaged

She advised him and he came to thank her, and they committed zina

Ruling on teaching Qur’aan to a non-Muslim

Is what he did to find out about his fiancée correct?