| What Am I Talking About? #1 | 55,468 | 0 | - |
| Countries of the World Quiz | 47,981,933 | 0 | - |
| World Capitals Quiz | 5,114,922 | 0 | - |
| Science General Knowledge #1 | 167,596 | 0 | - |
| Elements of the Periodic Table | 2,264,019 | 0 | - |
| Elements by Symbol | 199,091 | 0 | - |
| Geography by Letter - A | 213,227 | 0 | - |
| General Knowledge Quiz #1 | 461,493 | 0 | - |
| General Knowledge - Think Fast | 274,422 | 0 | - |
| Countries that Start with A | 2,178,773 | 0 | - |
| A Answers Quiz #1 | 137,330 | 0 | - |
| A Vocabulary Words Quiz #1 | 62,388 | 0 | - |
| Geography General Knowledge #1 | 265,382 | 0 | - |
| Name a Valid Country #1 | 296,214 | 0 | - |
| History by Letter - A | 154,045 | 0 | - |
| Asian Geography By Letter - A | 71,535 | 0 | - |
| Easy General Knowledge #1 | 197,236 | 0 | - |
| History General Knowledge #1 | 129,380 | 0 | - |
| Crowd-Sourced General Knowledge #1 | 58,477 | 0 | - |
| Locations by Letter - A | 51,632 | 0 | - |
| City to Country Quiz #1 | 157,902 | 0 | - |
| Geography True or False #1 | 123,757 | 0 | - |
| Landmarks Picture Quiz #1 | 396,704 | 0 | - |
| Europe Geography Quiz #1 | 71,576 | 0 | - |
| Multiple Choice Geography #1 | 137,010 | 0 | - |
| April Fools' Quiz #1 | 59,853 | 0 | - |
| Airport Codes Quiz #1 | 217,231 | 0 | - |
| Famous Firsts #1 | 69,469 | 0 | - |
| Cities by Wikipedia Descriptions #1 | 55,646 | 0 | - |
| World Language General Knowledge #1 | 71,631 | 0 | - |
| General Knowledge True False #1 | 55,783 | 0 | - |
| World Cities by Clue #1 | 74,341 | 0 | - |
| Bible Quotes Quiz #1 | 62,215 | 0 | - |
| Bible Characters Quiz #1 | 106,444 | 0 | - |
| Books of the Protestant Bible | 212,338 | 0 | - |
| Singapore MRT/LRT Stations Quiz | 277 | - | - |
| Name a Valid Answer - Science | 41,523 | 0 | - |
| Name a Country A-Z | 246,279 | 0 | - |
| Name a World Capital A-Z | 177,336 | 0 | - |
| Europe Capitals Quiz | 1,602,638 | 0 | - |
| Digits of Pi | 1,166,988 | 0 | - |
| Fast Math - Multiplication | 1,168,895 | 0 | - |
| Mathematics General Knowledge | 67,647 | 0 | - |
| Numbered Answers Quiz #1 | 40,514 | 0 | - |
| Multiple Choice General Knowledge #1 | 256,265 | 0 | - |
| 100 General Knowledge Questions of Varying Difficulty | 135,093 | 0 | - |
| Science by Picture - A | 2,384 | - | - |
| Speed Symbol by Element | 105,752 | 0 | - |
| "Ologies" Quiz | 97,653 | 0 | - |
| Random Symbol to Element | 94,215 | 0 | - |
| Science Multiple Choice #1 | 87,083 | 0 | - |
| Major Taxonomic Ranks | 81,282 | 0 | - |
| Irregular Plurals #1 | 143,039 | 0 | - |
| Science Vocabulary #1 | 72,260 | 0 | - |
| Antonyms Quiz #1 | 331,242 | 0 | - |
| What's Bigger? #1 | 151,615 | 0 | - |
| History True or False #1 | 103,839 | 0 | - |
| Geographic Groups of Two #1 | 238,363 | 0 | - |
| Words that are European Cities | 56,133 | 0 | - |
| Words Ending in "Graphy" | 84,945 | 0 | - |
| Elements by Atomic Number - Random | 146 | - | - |
| Cities in European History #1 | 134,752 | 0 | - |
| Singapore Armed Forces Generals/Admirals Quiz | 6 | - | - |
