Permissible and Impermissible employment

Q: Is a banker's income halaal? Is it fine to marry them as some people say their income is based on sood?

Q: I work in an IT company where they monitor and maintain the server of a website. That is we take care of all their backend and frontend problems and manage them according to the client requirements. Now the company has many websites which is haram like games of rummy played for real money and haram entertainment websites. The company also has good educational website. Is it permissible for me to work in this company and is it my earning halaal where I have to monitor and manage all these websites and make the website run smoothly irrespective of being halaal and haraam?

Q: Is working for a Jewish community center for preschool halaal or haraam?

Q: Is it permissible to become a lawyer?

Q: Can an Imaam charge you a fee when doing a Nikaah because I've asked everybody and everybody's answer is the same that the Imam is not suppose to charge but rather you can give what you can afford to give him as thanks. Also the islamic community pays the Imam for nikaahs, janaazahs etc.. so why should there be a charge?

Q: Is it haraam to work as a cashier in a grocery store where people occasionally buy haraam items such as alcohol or pork?

Q: Is it permissible to work as a game developer and make games which do not contain any music or pictures of animate objects?

Q:

1. A person is compiling a directory. Is it permissible for him to include the following places with their addresses and telephone numbers in the directory; escort agencies, liquor stores, churches, temples, casinos etc?

2. If someone asks you to assist him to find the addresses and telephone numbers of the following places; escort agencies, liquor stores, churches, temples, casinos etc, is it permissible for you to assist him in this regard?

Q: I am a Muslim (guy) college student. If I study to become a Physical therapist for the sake/pleasure of Allah:

a.) Will Allah accept it?

b.) Does my going everyday to school become a worship (Ammal)?

c.) Does my studying of major subjects,exams,quizzes day and night become a worship?

d.) Can this become a source to gain the pleasure of Allah? And also can this act be included as one of the good deeds that can make me enter Jannah?

Q: I do freelance work in which I do data entry and academic writing like assignments and lab reports. Is this type of occupation halaal or not?