Yes, Puerto Rico is a United States Commonwealth, so a person born there is a natural born US citizen, so provided he meet the other requirements for President, a Puerto Rican born on the island or anywhere else in the U.S. could hold the office.
No.
Rephrase your question. There is no strictly Puerto Rican citizenship, Puerto Rican residents ARE US citizens. As fas as the presidency goes, Puerto Ricans are not allowed to vote for the President of the United States because they are not residents of a US State.
depends on the puerto rican
Probably as a result of the Jones Act of 1917 which made Puerto Ricans US Citizens.
No. He or she would be required to have lived in the US for the past 14 years to be eligible.
Because they can be based on birth in a US Territory, also US citizenship was forced on them after the US invaded Puerto Rico. Today puerto ricans are also offered/given a certificate of Puerto Rican Citizenship.
The US Dollar.
Puerto Rico is part of the US and uses US currency.
Yes.
Same way they do in the us.
Scacamala of Uraguay
Puerto Ricans are US citizens. US citizens who live in Puerto Rico are not subject to the US Federal income tax on income they make from sources in Puerto Rico. Any Puerto Rican who moves to another part of the US is subject to Federal income tax just as all other US citizens are.