A bank is a financial institution that accepts deposits from the public and creates credit. Lending activities can be performed either directly or indirectly through capital markets.
Working in any job in the bank which is connected with usury is not permissible. If the job is away from usury then it is permissible.
Learning programming is allowed in any company or school or college, but indulging with interest (RIBA or usury) is not allowed for Muslims.
There is no point in leaving it in the account because it will utilised by the non Muslim bank with no benefit to you or to any poor person. Utlizing interest from non Muslim is allowed according to verdicts of leading scholars ( Maraaje' of Taqleed). You can utilize the money or give it to the poor and you don't need to tell them that it is from bank interest money.
Muslim is not allowed to support marketing unlawful business like alcohol, usury, etc.
Your investment should never promote any business which is against the orders of Allah (SWT).
No. There is a big difference between these two situations. Receiving interest from non Muslims as part of their practice, does not mean that you can invest your money in the bank as a share holder. Muslim is not allowed to buy shares of any company indulged in unlawful (Haraam) business.
Yes it is allowed to sell such items to the banks as far as it does not promote the unlawful business of usury.
Working in interest in not permissible in Islam, but banking jobs include trade, investments, import and export etc which are permissible. If your husband works only in interest and nothing else, then his work is fully unlawful and his income is unlawful, but if he works in interest and other lawful jobs, then his income include lawful money from which you can utilize.
Yes you can do so although it is not forbidden to utilize any amount added on your money if you did not put a condition of usury or interest.
Alcohol is absolutely forbidden for us as Muslims. Even if we meet or work with non Muslims who drink alcohol, we are always not allowed to drink alcohol.
Interest has different situation. It is not allowed between Muslims, but when they deal with Non Muslims who usually take interest from Muslims, the Muslim scholars say that Muslim is allowed to receive interest from Non Muslims who give it as part of their financial dealings.
We have many Hadeethes in our books that it is allowed to take interest from non Muslims who consider interest as permissible for them.
You need to follow the verdict of the Marji' of Taqleed.
Such loan is permissible to take. Some scholars also allowing taking loans with interest if it is absolutely necessary and the person is in much hardship.
May Allah grant you success
Yes, it is allowed to open an account in non Muslim banks. The interest which they usually add on your money is allowed for you to take as far as you did not put a condition on them to pay you interest, but you know that they usually pay interest.