Permissible and impermissible items of trade

Q: There are many patients who suffer from insomnia. They need sleeping pills to get sleep. Is it allowed to sell sleeping pills via an online pharmacy?

Q: Is it permissible to buy a bank repossessed car from a company that deals with those kind of cars before the cars go to the auctions. They are sold at a much cheaper price.

Q: Is selling mosquito coil halal? It may contain few harmful ingredients for human body or maybe not.

Q: Is it allowed to manufacture coffins as a business?

Q: Is it permissible to sell vapes, if a person only sells and doesn't smoke? Is the money derived from the sale of vapes halaal?

Q: Is opening a medical store business halaal in Islam?

Q: Is it permissible to make and sell artwork?

Q: I want to start a business by selling non-alcoholic malt beverages. I want to know whether that income will be halaal or haraam?

Q: If someone has done fraud and is selling designer clothing and items by means of fraud, is it permissible to buy any clothes, shoes or accessories from this person Islamically?

Q: A person wants to run his clothing business through online retail platforms. To display the products, he will have to take photos of live human models wearing the clothing and other items. Is this allowed? If not, can mannequins with the heads be used?