If he lets one of his sons live in an apartment for free, is he obliged to treat the rest of his sons equally?

Her relative works in a haram job and gave her some money as a gift

He has been given money to help him get married – should he accept it?

Teacher accepting a gift from the students

He gave her gifts to marry him; can he ask for the gifts to be returned if she refuses to marry him?

Ruling on buying by hire-purchase

Programmers saying: “If you like this program then you can donate to the programmer”

Her father is asking her for some of her dowry

His father gave him something then he died before the son took it

Fairness Between Children in Spending and Gift-Giving