BeninChileChinaEgyptGabonGhanaHaitiIndiaItalyJapanKenyaLibyaMaltaNauruNepalNigerPalauQatarSamoaSpainSudanSyriaTongaYemen
There are no countries (in English) with names five letters long with "s" as the second letter.
The Congo and Kenya, both African countries
Spain may be the only one.
malta,haita
There are no countries that have only 3 letters.
Ulan Bator
No, April is not the only month with five letters in its name. Other months that also have five letters include May and June. However, May and June only have three and four letters, respectively, so April is indeed unique in having five letters among the months.
The only countries with three letters in their name are Fiji and Vanuatu.
The following countries are members of the United Nations # Benin # Chile # China # Egypt # Gabon # Ghana # Haiti # India # Italy # Japan # Kenya # Malta # Nauru # Nepal # Niger # Palau # Qatar # Samoa # Spain # Sudan # Tonga # Yemen
Croatia
No.