Using interest money to fix potholes and to pay off interest of a bond

Q: I wanted to find out about the following to questions regarding interest.

1. Is it permissible to hire out people with interest money to repair potholes which the government supposed to do and are not doing so. Would it affect the maslah if the person who gave the interest money to repair the roads is also using the roads and taking benefit from this interest money?

2.Can a person use interest money to pay off the interest of a bond?

Ownership of money given to one's child

Q: I am almost 16 years old. My parents give me pocket money every month. When they give me this money, do I become the Maalik (owner) of that money or does it remain under the ownership of my parents?

If sometimes they need some money, they ask me to lend them some money as loan. And if my mother thinks that I am not spending my money right, she takes my purse and money from me and keeps it with her and returns it after some time.

If I save that money over time and buy an online course with that money. The online course is about how to earn money online. So, if I learn from that course how to earn money online and then I earn money online, will that money which I earn, be considered under my ownership or my parents ownership? Because if it is in my parents ownership then it will be divided in Wirasat.

Accepting zakaat to pay off one's debs

Q: At the moment I am in alot of debt. My buinesses closed during covid and I have tried to restart them but at the moment I am in alot of debt, on the businesses as well as on my house which is bonded. If I do sell my house, it won't add up to the amount of the debt but if I can pay off my debt then insha Allah I can be able to pay zakaat going forwards. I don't have an income for now. Is it possible to receive zakaat to pay off my debts?

Transporting haraam items

Q: I work in the removal service industry which is to transport people’s personal belonging from their old residents to their new home. Majority of the time is just boxes and clothes etc. Sometimes I do stomp upon alcohol that they may take with them in 1 of the boxes. What is the ruling on this? Is my money haraam?