Musjid

Q: I have a few questions regarding masjid. 

1. What are the requirements for a building to be called a masjid (and subsequently all the rules of a masjid must be followed)? 

2. Do the rules of a masjid apply to a musallah? 

3. Can there be a masjid in a non-Muslim country? 

3a. I have heard that in Canada a building is not owned permanently by a person and the government can take control of it (either any time or a lease of 99 years apply), so can there be a masjid in the aforementioned case? 

4. If one has taken upon an item of the masjid for safekeeping, can they personally use it? It was bought by the masjid money.

Q: Musallees are reading salaah in a tent/wood and iron structure. This structure was destroyed or partly damaged in a recent storm. Money is collected to build a Musjid. Can the committee use these funds to renovate the temporary structure?

Q: A masjid has a borehole, can one fill and take water from the masjid to use for drinking etc. at home?

Q: If I go to the musjid and someone mistakenly took my shoe and lefts their shoe, Can I take that person's shoe?

Q: Are non-Muslim builders allowed in the masjid while in the state of janaabah?

Q: Is it permissible for the masjid to have an Islamic shop in the wudhu area of the masjid for the the benefit of the masjid and having a multi purpose hall for nikah and walima for the benefit of the masjid? 

Q: I request clarification on the ruling of waqf made by a kaafir.

What is the status of a waqf made by a kaafir? For example, if a kafir makes waqf of land for the building of a masjid, is such a waqf valid in Shari‘ah? [Kindly clarify, and also refer to Imdadul Ahkam, where there is mention of a related fatwa regarding this mas'ala]. 

Q: A musallee sells fruit and veg from his car in the masjid parking lot after jumuah.

1. Is this permissible? 

2 Does the masjid committee have the right to prevent him from this?

Q: A person teaches at a Madrasah in exchange for a salary. While all lessons take place in a classroom, he sometimes gives extra time to his students with their work outside of class time. If this extra tuition takes place in the Masjid, will this be free of Karaahah?