Arab mustafa is 18 years old
pharmacies
Zagreb in Croatia.
it was gold
The head of an Arab Tribe is called a Sheikh.
souks
The Nomads who live in the Arab Deserts are called Bedouins.
Greenwich is a city in England and cities with its namesake also exist in former English colonies (such as the USA and Australia). There is no Arab country that has a Greenwich city. If the question seeks to ask which Arab country has the Prime Meridian (also called the Greenwich Meridian) going through it, that would be Algeria.
There is no specific term for Muslims of Arab origin. They are usually just called "Arab Muslims".
The Arab Republic of Egypt
They were called the Bedouin.
It depends on whether you want real Arab cities or whether you want fictional Arab-ish cities (like cities that could be founded in an Arab country). Real cities: Cairo (Al-Qahira), Amman, Hurghada, Riyadh, Jeddah, Najran, Sana'a, Sharjah, Basra, Baghdad, Aleppo (Homs). Fake cities: Ain al-Ghazal (Gazelle Spring), Majdal al-Wela'a (Tower of the Loyal), Hoddad (Iron-workers), Mostaqell (Independent)