What country is 20 degrees north and 30 degrees east?

Answer 1

That point is in northern Sudan. There are also trillions of other points in Sudan,

each with different latitude and longitude. There's no such thing as the latitude

and longitude of a whole country.

Answer 2

Saudi Arabia is at 20 N, 40 E. The exact coordinates are actually at the western border, connecting with the eastern border of the Red Sea.

Answer 3

That point is still in Turkey.