I never know if there is a country that wants to sell a small island, and pay using bitcoin. if that's true it will be the bitcoiner will buy it. and that will be good news.

I think this will prohibit. I never heard of it here. lombok is a part of our country. no sale of an island, in indonesia not allowed to sell an island. even if there are foreign nationals, they just hire no more than that. if any of these violations will become criminal.

I think that could be possible, yes. But for you to buy an island with bitcoins, first somethings needs to be possible. There should be a government which possess island, and accept bitcoin as way of paying. Second you need to have enough bitcoins. If that requirements at meet, it should be no problem for a person to buy an island. I must say that, that would be a thing to see or read about.

  An Island , maybe yes in future , but if you have 10.000 bitcoin in your wallet , can you imagine how much it , i wanna sleep to imagine that , hahahaha

Yes if you have a lot of bitcoin maybe you will buy or get and island but for me i dont want to buy island i want to buy big house ,car and and i want to help all people and i want to help my family if i'll became rich like others becuase of bitcoin.

I don't know if there is an island that is up for sale and accepts bitcoin as a payment but you can buy island if you have a lot of bitcoin but first you have to convert it into fiat before purchasing the island you are dreaming of.

I don't think so that you would do settlements with bitcoin, maybe you would need to convert into their currency first then you can buy. But it's not impossible to actually settle with it when the other party agrees with it.

Having your own island needs a huge amount of bitcoin. which means its not a joke amount to have an island as your assets.  And for most of the time Island most often sell by the officials of the government if I am not mistaken.

Sure you can. Check this https://www.privateislandsonline.com/ But you have to satisfy few points:
1. you need to have enough bitcoins. Even the small island costs a fortune. And it's not guaranteed that you can build anything on it.
2. if you have enough bitcoins, you need to figure out what is the best way to convert them to eur/usd. It's not a problem to sell 1 btc but to sell 5000 is a different story. Plus you have to count on the fees and taxes you need to pay.
3. this i never really knew how it goes, but my guess is that with such amount of btc you would need some kind of proof where you got them.
4. There are costs of maintaining the island. Taxes and whatnot.

Greece is interesting since it's really nice country and with financial turmoil in the past few years there are a lot of islands on the market since they changed taxing policy and it's quite expensive to own one so many owners decided to sell.