Accepting fuel allowance for a month from a company even if one does not require it

Q: If a person is under employment (working for someone) and fuel allowance is also included in the contract (given in cash), however, if a month/week comes wherein the employee has enough fuel in the vehicle and therefore, for that particular month/week, he feels that he doesn’t need the fuel, should he still accept the cash or not, because it is in the contract? 

Calculating zakaat at the end of one's zakaat year

Q: If a person works for some years and every year, he has to discharge zakaat for example in Dhul-Hijjah. (basically his zakaat year ends in that month and discharges zakaat then). After some years, he opens up his own business from the savings he has accumulated. Thereafter, when should he now pay out any zakaat due on him? Should such a person continue discharging zakaat in Dhul-Hijjah, or he has to take a new date because of the business? 

Surrogacy in Islam

Q: Is surrogacy allowed in Islam? Can an individual use his sperm and another lady's egg to be fertilised after which she will carry the baby on behalf of his wife?

In the case where it is your sperm and your wife's egg, can another woman be the surrogate mother? I would like to know the permissibility and the reason for permissibility if there is. Can the womb be used as a rental space to carry a child? Is it like being a milk mother? If the woman carrying the child for someone else is married, what will be the status of nikaah? Can the surrogate child be your mahram?

In 1975, the television was regarded as not permissible, and also certain gelatine were also referred to as not permissible, and today our fatwas have changed regarding many matters.

What is your view on surrogacy, as it is not a sperm entering another woman, but an embryo that is a totally different form? 

Ringtones with a musical tune

Q: Certain phones have ringtones which have a tune.

1. Is this considered as music and hence haram? Some are a basic tune e.g. the Nokia tune, the Samsung whistle tune.

2. If the phone is very basic and does not have any other options for ringtone apart from the musical tone, what should one do?