Permissible and Impermissible employment

Q: If I become an electrical engineer and my company takes interest from a bank, will my income be haram? 

If I become an electrical engineer and the company does something haram in a way that they think it's halal (since they don’t know that saying haram is halal is shirk), will I become a disbeliever or sinner for working in that company? 

If my company works with another company that does haram activities or considers haram as halal (since they have no idea that calling haram halal is shirk), then for working in such companies, will I become a disbeliever or sinner? Will my income be haram? Will having the desire to work in such companies make me a disbeliever or sinner? 

If the people in my company are Muslim but they commit shirk or make mockery of Islam, or if they work with companies that do such things — then will I become a disbeliever or sinner for joining those companies? 

And if those companies are at a very high level and offer a handsome salary, will wanting to work there make me a disbeliever or sinner?

Q: Is it permissible for the Imaam of the Masjid or any scholar to teach hifdh/madressa in the Masjid & charge fees? 

If not, should this be moved outside the Masjid boundary or what would be the best possible solution?

Q: Is it halaal to work in Pepsi company? I am not sure whether this company supports Israel or not.

Q: I did an online earning course with stolen money. 

My question is that is it permissible for me to earn money with these skills that I have learned during the course?

Q: If a female works for a recruitment company for schools (they provide teachers to schools) and these temporary teachers can be provided for any class such as music, English, business, maths (it’s not for a specific lesson). Is their income halal even if we know that they will be supplying teachers for a music lesson?

Q: Where I'm working, I know the people quite well. I've been working here for about 3 years or so now. 

They give me duties to do, example, to take their mother or wife or sister to go shopping or to transport them from one place to another. 

I personally don't like doing that because they are non mahram. My wife gets angry with me when I do those things and she doesn't speak to me. 

If I do tell my boss that I can't do those duties, I know personally they will fire me or treat me differently although they are Muslims. What should I do?

Q: To qualify for CA (Chartered Accountant) in Bangladesh, one has to pass 17 papers and also complete 2 or 3 or 4 years of article ship (practical training). Now my friend has passed the CA exam by passing all the 17 papers by giving the exam in the most ethical manner as possible but he did a dummy article ship (forged article ship documents). 

Now he got a halal job because he is a qualified CA. Without doing the article ship, one cannot give the last level of CA exam (last three exams). Is his income halal as he forged the article ship document?

Q: Is it permissible for a laundromat to wash wedding gowns and formal suits?

Q: A person I know does online booking reservation for hotels and rooms for accommodation for 5 star hotels. Some of the clients that approach him are confirmed unmarried adults who want to book rooms for zina purposes. When it is 90% sure that these are unmarried and are booking for unlawful things, if I book the hotel rooms through my website, will it be halaal income or haraam income?

Q: I am working under a company which scam people but my job is to give them money and send them to the other people who will soon scam them. 

What should I do? I need to spend at least 6 months here to go back to my country or I need to pay them 1700$ to get my passport + I need ticket money too. So I have no idea what to do. Please guide me through this difficult time.