Someone with Dual Citizenship should be able to enter and reside in each country in which citizenship is held without obtaining a visa. That is part of what citizenship is about - the right to enter and travel freely in your country of citizenship.
he has to apply in the country of which he is a citizen: eg: a German citizen living in Denmark must apply at the German consolate to obtain a Visa
Yes, as long as you hold a passport.http://travel.state.gov/visa/visa_1750.html
YES BECAUSE HE OR SHE IS NOT A CITIZEN OF THE U.K SO HE NEEDS A VISA TO STUDY IN THE U.K
Does a Mongolian citizen need a Dubai visa??
I'm adding details to my own question for clarification - I am an American citizen living in America wanting to study in Spain, however, I have an Italian passport and I believe but I'm not entirely sure that I have Italian citizenship? through my father who is an Italian citizen, but i have never lived in Italy so do I need a visa on my American passport or is my Italian passport without a visa enough to study and stay in Spain?
Passport typically if its a vacation, if your working there, or attending school, or residing in there temporary then a visa is normal.
No visa required to France for Seychelles citizen. See link.
if a Ghana citizen leaving Ghana what is the visa cost
I am Kenyan citizen and do i need a visa to enter Ecuador?
i will like to know if botswana citizen are visa free to India
No. You need a visa ahead of time, and most likely obtained from the Canadian Embassy where you are residing.
Japan does not allow dual citizenship; when the person who holds dual citizenship of Japan and another country reaches the age of majority, Japanese officials ask them to surrender one of the nationalities. So, if you have not renounced your US citizenship yet and can apply for (or have) a valid US passport, you do not need a visa to move to the US for work or any other purposes.