give me 4 jeopardy questions about the African Governments that go from medium to difficult

1) Medium: Which African country was the first to gain independence from European colonial rule, establishing its own government in 1951?

2) Medium: As of 2021, which African country has the longest-serving current head of state, who has been in power since 1979?
3) Difficult: Which African country, known for its unique system of governance called "gerontocracy," has a president who must be at least 65 years old upon assuming office?
4) Difficult: Which African country, often credited as Africa's oldest republic, gained independence in 1847 as a result of the American Colonization Society's efforts to settle freed African-American slaves?