No country begins with the letter X.
Virtually all countries have 3 letters in their names.
No.
Me.
Yes, all the beginning letters of the word or abbreviations are capitalized at the beginning of the sentence.
alliteration
Yes, many countries have keyboards with letters specific to their language. For example, countries that use the Cyrillic alphabet have keyboards with those letters. Similarly, countries with languages like Chinese or Japanese have keyboards that accommodate their characters.
All of the same letters as English
With Shift + F3 you can toggle all words in a selection through the following states : all lowercase letters First Letter Capital ALL CAPITALS
Italy, India, Egypt and that's all I can think of.
Oh Come All Ye Faithful
There are many countries that only have six letters. These include Greece, Israel, Cyprus, Sweden, Taiwan, Norway, Turkey, Panama, Poland, as well as Rwanda.
After all available letters have been used, any more storms in the season are named with letters of the Greek alphabet.