Q: There is a website called hellopeter.com on which people review the service they received from various companies, list their complaints, grievances or even praise the service. Most of the postings are complaints against companies. The companies thereafter usually respond and try to resolve their issues. Sometimes the company or individual changed their ways, or got rid of a problem employee, but the negative reviews were not changed by the complainant. 

Another example is that of Google maps reviews, which often can have a negative impact on a business when customers complain.

Both these websites are public and the complaints visible to all.

Is it permissible to complain/write a negative review, using these methods, against companies or individuals, with the hope of resolving legitimate grievances, such as non delivery of a promised service and the like? Or would this amount to backbiting?

Q: My relative asked me to buy a washing machine for him. The washing machine cost R5000 for example. Can I inform my relative that the machine cost R7000? He does not know that I will charge him extra.

Q: Is one allowed to breed and sell cats?

Q: When one is making tawaaf, is one allowed to:

1. Drink zamzam that someone is giving out?

2. Drink zamzam by proceeding to the nearest tank, without being in dire need of the water, but to quench one's thirst?

3. Sit and rest for a while, drinking zamzam, etc.?

Q: During ghusl of janaabat, is it mandatory for a woman to wash her long hair entirely after intercourse? Or only the front of the head hair should be washed if it is difficult to wash and dry long hair?

Q: Is it okay to adopt a child (a baby girl) from a poor single mother (the father died) who has other kids as well? She is not able to financially provide for the family well.

I understand the mahram and non-mahram restrictions.

Also, I know that we cannot change the father and family lineage of the adopted child. Won't it be a sin for me and my wife that we are separating a child from her siblings and mother as we live in a different continent?

Q: I have bought a pair of leather socks that covers the entire foot upto the ankles. Would this suffice for me to make massah on it?

Q: I own a business that sells camping gear. Is it permissible for me to sell my products via amazon.com? The Amazon company will handle the shipping and everything else.

Q:

1. Can I design products with logos of other brands and sell them online? Is that income halal for me? Especially if those brands are based in countries which are causing harm to Muslims and Islam?

2. Do I have to tell the buyers of these products that they are replicas, even if they are from a country which is harming Muslims and Islam?

Q: Can I give blankets as fidyah of fasts of my grandmother who can't fast to the needy in Madrasah?