Permissible and impermissible items of trade

Q: My brother sells Christmas trees, Christmas related products on which happy Christmas is written and he paid my education fee. 

Will my income be halaal if i use the knowledge as a job or business that I get from my education and can I live in his house that he made from this money? 

Also, he gave me a laptop that he bought from that money and I work on the laptop as a freelancer. I use the Internet on this laptop and he also pays the bill of this Internet from that money. Will my income be halaal that I make from that money?

Q: Is it permissible to sell toys or clothing that are replicas of the original brand but not the original brand itself, if the original brand has copyright protection? 

For example, selling a motorcycle toy replica with the Kawasaki branding on it or selling an Adidas top replica with the Adidas branding on it.

Q: Please advise on whether it's permissible to study a cannabis course and learn about cannabis. 

Also, is it permissible sell cannabis and cannabis products for medicinal use?

Q: A person sells balloons with a ‘Happy Birthday’ sticker on it. This is their only form of income. Is it permissible to sell this type of item?.

Q: 

1. Is it permissible for a Muslim business owner to promote his business using adverts with Christmas decorations? 

2. Can a Muslim businessman sell Christmas lights, trees, decorations, etc.? 

3. What is the ruling regarding a person decorating his business with Christmas lights, Santa Clause etc.?

Q: When I was young I had a play station. Now I am studying in Aalim class. I don't use it anymore. Can I sell my play station?

Q: I am in the business of selling sound equipment like speakers, mixers, and amplifiers. To remain competitive. I feel the need to offer a wider range of products, including musical instruments, despite knowing that music equipment may be considered haram. Given this, I have a few concerns: 

1. Is it permissible to sell musical instruments under these circumstances? 

2. If the income from selling such items is haraam, can I use that money to pay taxes? 

3. If selling musical instruments for profit is not permissible, would it be acceptable to sell them at cost price just to stay competitive in the market?

Q: 

1. Would it be halal for me to sell gold to a cash for gold place because there is a high chance they will sell this gold to a refiner, scrap gold buyer or so on and they might use this gold to make gold jewellery for men etc.? 

2. What about selling grapes to a business that sell grape related products so the grapes I sell to them can be used to make their grape juice or it can be used for their wine etc. Will the income be haram? Because I’m unsure what they will use it for.

Q: Is designing and selling colouring books halal provided that there's no animate objects and no haraam elements in it?

Q: If a shop owner purchases items with murat (animate pictures) and/or female pictures on the packaging, sells these products and advertises them, will he be sinful? 

If we should be covering these things, please can Hadhrat Mufti Saheb advise how.