Doing Hajj with money he earned by working in a company that produces tobacco

He works as a collector for an electricity company. Is it permissible for him to change the currency before giving the collected money to the company?

Working in administration supervised by a ministry that supervises taxes and customs

Ruling on working as the manager of an Internet café

Using the company’s property for personal things

Ruling on working in an Islamic nasheed group

Salary of an employee who cheated in his exam

Ruling on training in a riba-based bank during the holiday in order to gain experience

Ruling on working in a law company whose field of work is financial markets

A teacher uses his teaching time in activities and other things