The poorest country has been prooven to be East Timor with 500$ per capita.
Russia. Just European Russia alone borders 11 countries. The next highest is France which borders 8 countries on the continent of Europe, 2 on the continent of South America.
Yes. It is located in Indian Ocean near Madagascar. Capital Port Louis.
they are madigascar, secheles.moasqui
By airplane and by ship. Also the Earths crust connects all countries from below by crust plates.