| Date | Answer | Clue |
| 1st (1972) | |
| 2nd (1969) | |
| 3rd (1658) | |
| 4th (1886) | |
| 5th (1972) | |
| 6th (1901) | |
| 7th (1986) | |
| 8th (1988) | |
| 9th (1969) | |
| 10th (1823) | |
| 11th (2001) | |
| 12th (1940) | |
| 13th (1814) | |
| 14th (1960) | |
| 15th (1951) | |
| | Date | Answer | Clue |
| 16th (1932) | |
| 17th (1978) | |
| 18th (1975) | |
| 19th (1928) | |
| 20th (1973) | |
| 21st (1937) | |
| 22nd (1869) | |
| 23rd (1962) | |
| 24th (622) | |
| 25th (1954) | |
| 26th (1580) | |
| 27th (1922) | |
| 28th (1678) | |
| 29th (1916) | |
| 30th (1938) | |
|