List of countries where the Head of Government is same as the Head of State

Afghanistan
Angola
Argentina
Benin
Bolivia
Botswana
Burundi
Chile
Colombia
Costa Rica
Cuba
Dominican Republic
Ecuador
El Salvador
Eritrea
Gambia
Ghana
Guatemala
Honduras
Indonesia
Kiribati
Liberia
Malawi
Maldives
Marshall Islands
Mexico
Nauru
Nicaragua
Nigeria
Oman
Palau
Paraguay
Philippines
San Marino
Saudi Arabia
Seychelles
South Africa
Sudan
Switzerland
Turkmenistan
United States
Venezuela
Zambia