The island of Singapore has the same name as its capital city.
SINGAPORE
no, only the island's name needs a capital
Some countries that have the same name for their country as their capital include: Andorra (Andorra la Vella) Monaco (Monaco) San Marino (San Marino) Additionally, some smaller island nations like Nauru also have the same name for their country as their capital.
Oklahoma has about the same capital as the state name. Its capital is Oklahoma City.
Ibiza is the name of the capital city as well as the island
The island group with the capital of Honiara is the Solomon Islands.
There is no strait and capital with the same name.
Tokyo meaning 'the eastern capital' in japanese I believe the Island would be Japan, Tokyo is the capital of said island.
Jordan is the name of a country in the Middle East. However, it is also the name of the capital city of the province of Guimaras, an island in the Philippines.
Colombo
It is neither a country nor a capital. Sardinia is the name of an island that is part of Italy. Its capital is Cagliari.