Permissible and impermissible items of trade

Q: I'm a perfume trader in which we get orders for men and women perfumes. As women's are prohibited from using perfumes so can we distribute or sell ladies perfumes products.

Q: Am I allowed to sell a book I got for free?

I ordered a secondhand book online for a class I'm taking. It arrived very quick, and it looked completely new, not secondhand at all, but I no longer needed it as I had already bought the ebook. I put the book for sale online. What I usually do is sell it for 2x or 3x the price I paid, but still cheaper than the retail price. But then, a few days later, I got another copy of the book in the mail, and this one looked more like a secondhand book with highlights and stuff. I thought maybe the company made a mistake and sent me 2 copies, but I just remembered, about a month ago, I had filled out a form on the book company website pretending to be a teacher to see if I could get the book for free. I have done these before, and they never work, so I was just doing it for fun. My answers were absurd, with a fake name, institution, etc, and I thought it would eventually take me to a page with more security where I would have to provide proof of identification, but the form suddenly ended and it was submitted. I had completely forgotten about it, and there were no updates in my email about the book, whether my request was approved or whether the book was shipped. I still have a feeling that this company is likely the one who sent me the book. So, my question is, what do I do with the book? I didn't mean to get it like that, like I didn't think the form would work, but now that I have it, is it permissible to sell it?

Q: Is it permissible for a Muslim to sell hot cross buns in his store?

Q: I read in Behashti Zewar that it is not permissible for women to wear artificial rings.

1. Since I was unaware of this ruling, I already have many such rings that I used to wear. What should be done with those rings?

2. I have given rings as gifts to many women in the past and my jewellery business gave me profit from selling artificial rings. Will I be sinful for this? What should I do now?

Q: If a person buys a property and the tenants are a betting company and old mutual, with a lease of two years, can the person buy the property with that kind of tenants? If yes, can he continue with the same tenants after two years?

Q:

1. If a person wrote a book which is a mix of fiction and non fiction and they sell the book, is the money earned from that halaal?

2. If that same book has slight romance in it, will the money earned from it be halaal?

3. If that same book has swearing (which the readers will be warned of) then is the money earned from it halaal?

Q: We have recently received stock of an Islamic toy which we were unaware had music... The toy has many beneficial learning pages such as duas, surahs, Arabic alphabets, etc. but there is a button which plays nasheeds with musical instruments in the background.

Will it be permissible to sell such a toy? If the toy is sold with a note on how to remove the music and if the customer purchases it and chooses not to remove the music wire, will the seller be sinful?

Q: I would like to know if it is permissible to purchase teaching resources from the company Learning Roots. Their books and resources have pictures of humans/animals but with the faces blocked out or blurred.

Q: Whats the ruling about Bitcoin? Is it halaal or haraam?

Q: I want to ask if it is allowed to sell and purchase plot files? The housing society is still underdevelopment and possession of plots is not given to file holders.

(The file is a document issued by a housing scheme developer, against which one can claim a piece of land/plot once development is done, and possession started by the developer)