Prohibition on buying something which you have given in charity

What is the ruling on selling his share in a company whose wealth is all debts that are owed by people?

Making copies of tapes and disks without permission

Selling cards to crack the codes blocking permissive channels

Selling Hajj visas

Ruling on draws for cars

A charitable organization wants to issue discount cards

Ruling on selling Islamic tapes and books in the mosque

Ruling on selling contraceptive measures

Selling before taking possession and selling by installments