| 100% | PALEOGENE | 9 | The first of the three periods of the Cenozoic Era |
| 66% | TERTIARY | 8 | Period of the Cenozoic Era |
| 66% | NEOGENE | 7 | Period of the Cenozoic Era |
| 63% | TRIASSIC | 8 | First period of the Mesozoic Era |
| 57% | TRIASSIC | 8 | The first period of the Mesozoic Era |
| 51% | STRAW | 5 | Building material for the first of the Three Little Pigs |
| 51% | AGAMEMNON | 9 | First of the three plays In Aeschylus' Oresteia |
| 50% | TRIASSIC | 8 | Period of the first dinosaurs |
| 50% | STRAW | 5 | What the first of the Three Little Pigs' houses was made of |
| 49% | MIOCENE | 7 | First epoch of the Neogene Period |
| 49% | ROY | 3 | First three letters of the rainbow? |
| 49% | READING | 7 | First of the educational three Rs |
| 49% | ABC | 3 | First three letters of the alphabet |
| 49% | DEVONIAN | 8 | Fourth period of the Palaeozoic era of geologic time |
| 49% | ORDOVICIAN | 10 | Second period of the Palaeozoic era of geologic time |
| 49% | ABC | 3 | First three letters of the English language |
| 49% | ABC | 3 | First three letters of the English alphabet |
| 49% | MIOCENE | 7 | First geological epoch of the Neogene period |
| 49% | ABC | 3 | First three letters of the Alphabet Song |
| 48% | PERMIAN | 7 | Last period of the Palaeozoic era in the geological timescale |
| 48% | BLEU | 4 | The first of three in the French Tricolour |
| 48% | STRAWMANSION | 12 | First home of the three rich little pigs? |
| 48% | PERMIAN | 7 | Last period of the Palaeozoic era in the geological time scale |
| 48% | ESP | 3 | First three letters of the Spanish name for Spain |
| 48% | PLEISTOCENE | 11 | First epoch of the Quaternary period in geological time |
| 48% | ALL | 3 | First and last word of the Three Musketeers' motto |
| 48% | TRIASSIC | 8 | Geological time period of the first dinosaurs |
| 47% | STEVE | 5 | First name of two of the three Apple co-founders |
| 47% | TUE | 3 | First three letters of the work week's 2nd day |
| 47% | ONEAD | 5 | First year of the Common Era |