| Term in Office | Answer | % Correct |
|---|---|---|
| 1978-1989 | Ranasinghe Premadasa | 100%
|
| 1993-1994 | Ranil Wickremesinghe | 100%
|
| 2001-2004 | Ranil Wickremesinghe | 100%
|
| 2015-2018 | Ranil Wickremesinghe | 100%
|
| 2018-2019 | Ranil Wickremesinghe | 100%
|
| 2022 | Ranil Wickremesinghe | 100%
|
| 1947-1952 | D.S. Senanayake | 75%
|
| 1952-1953 | Dudley Senanayake | 75%
|
| 1960 | Dudley Senanayake | 75%
|
| 1965-1970 | Dudley Senanayake | 75%
|
| 1977-1978 | J.R. Jayewardene | 75%
|
| 2004-2005 | Mahinda Rajapaksa | 75%
|
| 2018 | Mahinda Rajapaksa | 75%
|
| 2019-2022 | Mahinda Rajapaksa | 75%
|
| 1960-1965 | Sirimavo Bandaranaike | 75%
|
| 1970-1977 | Sirimavo Bandaranaike | 75%
|
| 1994-2000 | Sirimavo Bandaranaike | 75%
|
| 1994 | Chandrika Kumaratunga | 50%
|
| 1989-1993 | D.B. Wijetunga | 50%
|
| 2022-2024 | Dinesh Gunawardena | 50%
|
| 2024- | Harini Amarasuriya | 50%
|
| 2010-2015 | D.M. Jayaratne | 25%
|
| 1953-1956 | John Kotelawala | 25%
|
| 2000-2001 | Ratnasiri Wickremanayake | 25%
|
| 2005-2010 | Ratnasiri Wickremanayake | 25%
|
| 1956-1959 | S.W.R.D. Bandaranaike | 25%
|
| 1959-1960 | Wijeyananda Dahanayake | 25%
|