Depending on your country; see the link below.
no
An American citizen does not need a Visa to go to Romania unless they plan on staying there. They just need a passport.
yes because Romania is not Africa
As a citizen of Ghana you need a visa for Romania.
Yes, Jamaican citizens need a visa to enter in Romania.
Citizens from Nigeria need a visa to enter in Romania.
Romania is not in the Shengen space. All you need if you want to visit is your passport and the syria-romania visa. A. [if this answer satisfied you, please recomend me as a trusted contribuitor]
This visa is not necessary.
Romania family member can go Belgium and other EEC countries if they have Romanian residence visa
Not necessary
No
The visa is not necessary for Australians citizens.