Putting money in a commercial bank

He has repented from dealing with a riba-based bank but he does not know what his capital was

Ruling on depositing money in riba-based banks

He sells cars and refers customers to the bank, for which the bank pays him in return

Ruling on getting back a loan from interest-based money

Is it permissible for him to inherit property that was bought with a riba-based loan?

She works for a company that is partly owned by two riba-based banks. Is her work haraam?

Where should he deposit his mon\ey in these times when riba is so widespread?

Opening an account in the bank to have one’s wages transferred to it

He wants to propose marriage to a girl whose father puts his money in the bank