No, you don't have to. It is not necessary for you to be an Indonesian citizen to attend an Indonesian school.
Indonesian kids which lucky enough will attend private school. But I think Indonesian kids mostly go to state school. There are also kids go to a muslim school ( MI / MTs / MA ) and kids from overseas attend international school.
Yes, You must be a citizen of Indonesia to attend school
No, I don't think so.
President Obama lived in Indonesia as a child with his mother; however, he was never an Indonesian citizen.
You have to attend High School if you are of school age if you are a US citizen. If you are of another nationality you would have to have the relevant visa and parental consent if you are under 18.
No need
No, people who are old enough to be married are too old to go to school unless it's college.
No- that is considered bigamy.
No - this is not true. Obama was born in Hawaii and is thus a natural born US citizen. His mother married an Indonesian some years after he was born. His father was Kenyan.
An Indian citizen can marry an Indonesian citizen in the UK. It does not convey the right of UK citizenship or right of abode in the UK.
Go to Indonesian Embassy (if Indonesia does not offer visa-on-arrival to the citizen of your country).
one of the most famous Indian-Indonesian (Indonesian citizen) is Raam Punjabi, a soap opera director.