Various masaail of Business and Dealings

Q: My father in law is a teacher in a government school. And he is interested in gardening. He planted many kinds of trees in school. Are the fruits of the trees in school halal for him?

Q: Regarding Black Friday, I understand that it is to do with the kuffaar, however is it permissible for one to take advantage of the sales? 

Q: I want to know that if I work hard with the intention that I will become successful, is it shirk or not?

Q: If a Muslim is in a non-Muslim country, is it permissible for him to decorate his business with Christmas decorations? 

Q: As an estate agent I regularly deal in property. Often I am faced with confusion when fellow Muslims wish to buy a property that is currently leased to a non Muslim and haram organisations. Below are some examples of tenants whose buildings are for sale, and I have to advise Muslims whether it is permissible for them to buy in or not:

1. Non Muslim homes

2. Supermarkets that sell haram products

3. Liquor stores

4. Gambling dens

5. Non Muslim places of worship

Q: My question is regarding the interest on a GP fund of government employees. A fixed amount is deducted from our salary on a monthly basis, against our will, and then they give interest on it annually. One gets this total amount on his retirement. What is the Islamic ruling regarding this? Is it halal or not?

Q: There are softwares that require us to meet a certain requirement in order to use them. For example, one such software can be downloaded for free, but after a 30-day trial the software asks questions like "How often did you travel by airplane last year?" If we select the "more than 2 times" option, the software stops working and we have to uninstall it. However, if we choose the option "less than 3 times," it lets us continue its use.

1. Will it be permissible to use the software if we select that we flew less than 3 times even though if we did not?

2. If someone other than the user, who did fly less than 3 times, selects that option, can the user continue the software's use? There are websites which have a pop-up that comes up, asking us to subscribe to the website. If we don't want to subscribe, we can close the pop-up by clicking on sentences like "Not yet, I'll subscribe later," or, "No, I don't like to learn."

3. If I don't intend to ever subscribe to the website, then would clicking on these types of sentences to make the pop-up go away be permissible?

4. Would it be a lie?

Q: This may sound bizzare but it's something someone actually told me. He says if a person owns a business, it would be a much more feasible to get jinnaat to work in the form of human staff. As crazy as it sounds, it's an interesting idea. What is the Sharia opinion on this?

Q: Is it halaal to open a cafe where there will be mix gathering? If it is haram how can one avoid this haram thing in a cafe? I am a teenage girl and my father is opening the cafe but he does not practice Islam well. Please advice us on how we could avoid haraam?

Q: I have been curious for a while now about, "what is considered the same جنس when it comes to fish"... more specifically, can I trade 1 tuna for 2 salmons, would it be riba? Is the جنس the entire species of fish (which would entail riba) or is it in each respective sub-species, e.g. tune, salmon, yellowtail etc.?