Ijaarah

Working hours left up to the discretion of the employer

Q: Alhamdulillah, I have a job offer, but I am not sure if it is Islamic. 

The working hours are 48 hours per week. I queried as to how many hours per day, I was told it is a 6 day a week job with the amount of hours per day, the timings and the number of shifts per day left up to the discretion of the employer. 

My question is, is this arrangement permissible in Islam? Is it permissible for me to take up this job offer?

Employer not compensating staff for extra time

Q: I work as a manager for a Muslim man who at times stretches the time of his employees if it gets busy or is attending to personal work. He does not compensate them for extra time, and when the topic is brought up, he angrily dismisses it and says, "You are just standing doing nothing, so it’s not work." But I feel as long as they are in the shop, they are working, as they are not free to do as they like. What should I do ?

Producing ads for people

Q: Is it permissible if I start a business doing ads for people? As far as I understand, the ad is digital and does not physically exist. If I stipulate the condition that you are paying for the service of making the ad will it be permissible? 

What is also the ruling regarding buying something, like an ad which is digital, as it doesn't physically exist and qabtha cannot be done?

Taking a salary from a person who took out an interest-bearing loan

Q: I am a student. I teach my aunts son mathematics. This is my first job as a student. I always wanted to earn halaal or I have a wish that my first salary or income will be atleast halaal.

My question is, somehow, I know that my aunts source of income comes from riba or a bank loan or something or fraudness which is haraam. Is my salary halaal or haraam? I am confused. Please explain, if it is not halaal then I will teach him for free.