| Rank | Rule | Reign | Answer | % Correct |
|---|---|---|---|---|
| Longest reigning British monarch | 64 years | Elizabeth II | 89%
| |
| Longest ruling non-royal leader | Maximum leader of Cuba | 52 years | Fidel Castro | 89%
|
| Longest serving US president | 4,422 days | Franklin D. Roosevelt | 67%
| |
| Longest ruling non-royal leader currently ruling | President of Cameroon | 40 years | Paul Biya | 33%
|
| Longest reigning monarch currently reigning | King of Thailand | 69 years | Bhumibol Adulyadej | 22%
|
| Candidate for the longest reigning leader of all time | Pharaoh of Ancient Egypt | 94 years | Pepi II Neferkare | 11%
|
| Longest reigning pope | 31 years | Pius IX | 11%
| |
| Longest serving British prime minister | 20 years | Sir Robert Walpole | 11%
| |
| Longest reigning sultan of the Ottoman empire | 46 years | Suleiman the Magnificent | 11%
| |
| Longest reigning Roman Emperor | 48 years | Theodosius II | 6%
| |
| Longest reigning Chinese emperor | Qing dynasty | 61 years | Kangxi | 0%
|
| Longest verifiable reigning monarch | King of Swaziland | 82 years | Sobhuza II | 0%
|
| Longest reigning Malietoa of Samoa | 45 years | Tanumafili II | 0%
|