Question: How much is the GDP for a population density of 254.7?
SQL: SELECT "GDP (PPP) $M USD" FROM "2-159865-1" WHERE "Population density (per km²)" = '254.7';

Question: Which country has a population density of 50.3?
SQL: SELECT "Country" FROM "2-159865-1" WHERE "Population density (per km²)" = '50.3';

Question: How much is the GDP for an area of 61,395?
SQL: SELECT "GDP (PPP) $M USD" FROM "2-159865-1" WHERE "Area (km²)" = '61,395';

Question: How much is the population density with a GDP at $188,112?
SQL: SELECT "Population density (per km²)" FROM "2-159865-1" WHERE "GDP (PPP) $M USD" = '$188,112';

Question: How much is the GDP for an area of 116?
SQL: SELECT "GDP (PPP) $M USD" FROM "2-159865-1" WHERE "Area (km²)" = '116';

Question: Which country has a population of 3,221,216?
SQL: SELECT "Country" FROM "2-159865-1" WHERE "Population (2011 est.)" = '3,221,216';