I need to know if the question "Why Uganda is called a landlocked country?' correct.
Answers (1)
Why no. :-) (In this example, "why" isn't a question, but just an expression.)
BTW, you should have "Why is Uganda called..."
"Why" can also be a synonym for "the reason for which". For example "Why the sun rises in the east", which could be a title for the explanation that would follow.