Valid & Invalid transactions

Q: I want to open a business with boating, roller coaster rides, and other similar facilities. Can I provide such entertainment to people for a fee?

Q: I am in the business of buying and selling car mags. A few months back, I sold a set of rims to someone for R1800. A couple of months later, I got a call from the same person asking if I want to buy these same rims back because he had no use for them. I made him an offer of R1200 and purchased them back. Is this considered as riba or is it permissible?

Q: I would like to know the ruling regarding a person who contacts the seller of a property knowing well that someone else is busy negotiating to buy the property. Is it permissible for the second person to approach the seller to offer him more to secure the deal?

Q: When we make purchases online, some companies deliver their goods on cash on delivery terms. But they or a third party (delivering company) charge extra if one pays cash on delivery but no extra charges if we buy using credit card. Is it permissibe to pay the extra charges ?

Q: I live in India. I own a shop. I have to sell it. Can I sell it to a bank or can I give the shop on rent to that bank. Will it he halal for me?

Q: I want to ask if futures trading is halal in Commodity Market. In my country Pakistan, this is allowed. Also, to make it clear this kind of trading has no interest (riba) associated to it. Its a contract to buy the commodity in future by depositing an initial deposit. Please advice. I am a sunni Hanfi.

Q: Is it permissible for a seller to fight with a person for an amount of 1 lac because the purchaser does not want to pay the remaining amount of a property purchased due to some reason. Is this amount halaal for the seller or not?

Q: Please advise on below:

1. Many companies state at the bottom of their invoice "goods remain the property of the above company until fully paid for" What is the status of the goods?

2. Is it amaanat or does ownership pass on to the purchaser? Is such a condition permissible?

3. Will the sale be faasid if such a condition is added?

Q: I am self employed and selling biscuits and soft drinks to the retail shops. Some shops are off licenses as well. Is it permissible to do business with these shops. I do only soft drinks.

Q: Google recently launched an application named TEZ where transactions can be done between banks to banks. Google TEZ also provides some great offers such as scratch cards, and other offers when we use that app or refer friends to this application. We can be able to earn some money through referals and transactions. Can I participate in this referal programs and transactions so that I can earn some money through that (intention is to earn money) . Is this money halal or haram? I have done transactions only because of getting money or gift cards or scratch cards which contains some money, for this I transfer some money to my friends account and he returns the same money after getting those gifts, is this criteria halal or not?