Inheritance

Q: I want to find out about inheritance on a will. I am married Islamically and had to get court married due to my work (company benefits). I am drafting a will and wanted to find out. I purchased a house before marriage, is it permissible to state on the will the house is half mines and half my wife's. And what are the inheritance percentages for my mother my brother and 2 sisters. I only have my wife and daughter that inherit from me as well. Can the percentages be given for all.

Receiving somebody else's Zam-zam at the airport

Q: On returning from hajj, many people’s Zam-zam did not arrive. Thereafter, when we reported the missing Zam-zam, the airport authorities gave us bottles of Zam-zam equal to the number that we were supposed to receive. However, the Zam-zam they gave us is not ours, and a few bottles have other people’s details on them. 

It seems that the airport authorities are giving random bottles of Zam-zam to random people who claim Zam-zam. Is it permissible for me to keep the Zam-zam they gave me?