| 60,459 | Countries with the Most Light Pollution | 2023-12-02 | |
| 30,312 | Countries with the Least Light Pollution | 2023-12-02 | |
| 1,616 | Islands with National Capitals | 2017-08-22 | 16 |
| 1,437 | Countries with Only One Vowel | 2021-05-01 | 7 |
| 978 | How Many Gifts were REALLY Given in the Twelve Days of Christmas? | 2017-07-14 | 7 |
| 369 | Island Chains by Components | 2021-07-23 | 1 |
| 349 | Volcanoes by Picture | 2018-06-15 | 0 |
| 327 | Brightest Stars by Constellation | 2017-07-19 | 0 |
| 319 | Large Volcanic Eruptions in the Past 10,000 Years | 2017-12-10 | 0 |
| 313 | Constellations by Brightest Star | 2017-07-24 | 0 |
| 248 | History of the Entire World, I Guess (Part I) | 2017-11-04 | 0 |
| 144 | Countries Bordering Countries that Border Germany | 2017-12-08 | 0 |
| 112 | Elements with Irregular Symbols | 2017-11-10 | 2 |
| 111 | Spell the World's Longest Place Names | 2022-03-25 | 0 |
| 89 | Countries Bordering Countries that Border China | 2017-12-08 | 0 |
| 77 | Latin Verbs: Indicative Mood, Active | 2017-07-14 | 0 |
| 64 | Mahble's Geography Challenge #1 | 2018-08-13 | 0 |
| 59 | Constellation by Brightest Star, Difficult | 2017-07-20 | 0 |
| 57 | States Crossed by the 2017 Eclipse | 2017-08-18 | 0 |
| 56 | Countries Bordering Countries that Border Russia | 2017-12-08 | 0 |
| 50 | Extraterrestrial Objects Visited by Spacecraft | 2017-08-03 | 0 |
| 46 | Astronomical Groups of Things | 2017-07-24 | 0 |
| 36 | Mahble's Geography Challenge #3 | 2018-07-25 | 0 |
| 35 | Most Populous States/Provinces | 2018-06-24 | 0 |
| 34 | Spherical Solar System Bodies | 2017-08-02 | 0 |
| 33 | Mahble's Geography Challenge #5 | 2017-11-25 | 0 |
| 32 | Notable Moons | 2017-08-03 | 0 |
| 25 | Relating to the Given Organ | 2017-10-30 | 0 |
| 25 | Symbol Namesake to Chemical Element | 2017-11-10 | 0 |
| 24 | Mahble's Geography Challenge #2 | 2018-07-25 | 0 |
| 21 | Volcanoes of Japan | 2017-07-07 | 0 |
| 20 | Volcanic Island Chains | 2017-08-17 | 0 |
| 17 | Constellations Out of Order | 2017-09-01 | 0 |
| 16 | Namesakes of Irregular Elemental Symbols | 2017-11-10 | 0 |
| 14 | Volcanoes of the West Indies | 2017-07-10 | 0 |
| 13 | Volcanoes of Antarctica and the South Sandwich Islands | 2017-07-09 | 0 |
| 6 | Mahble's Geography Challenge #4 | 2017-11-23 | 0 |
| 5 | Stars in the Big Dipper | 2017-08-01 | 0 |
