| What Am I Talking About? #1 | 54,207 | 0 | - |
| Countries of the World Quiz | 47,570,426 | 0 | - |
| World Capitals Quiz | 5,082,315 | 0 | - |
| Science General Knowledge #1 | 166,309 | 0 | - |
| Elements of the Periodic Table | 2,247,823 | 0 | - |
| Elements by Symbol | 197,657 | 0 | - |
| Geography by Letter - A | 212,030 | 0 | - |
| General Knowledge Quiz #1 | 454,882 | 0 | - |
| General Knowledge - Think Fast | 268,498 | 0 | - |
| Countries that Start with A | 2,165,982 | 0 | - |
| A Answers Quiz #1 | 136,893 | 0 | - |
| A Vocabulary Words Quiz #1 | 62,143 | 0 | - |
| Geography General Knowledge #1 | 263,926 | 0 | - |
| Name a Valid Country #1 | 291,073 | 0 | - |
| History by Letter - A | 153,397 | 0 | - |
| Asian Geography By Letter - A | 71,233 | 0 | - |
| Easy General Knowledge #1 | 194,084 | 0 | - |
| History General Knowledge #1 | 128,512 | 0 | - |
| Crowd-Sourced General Knowledge #1 | 58,357 | 0 | - |
| Locations by Letter - A | 51,504 | 0 | - |
| City to Country Quiz #1 | 156,007 | 0 | - |
| Geography True or False #1 | 123,215 | 0 | - |
| Landmarks Picture Quiz #1 | 394,873 | 0 | - |
| Europe Geography Quiz #1 | 71,341 | 0 | - |
| Multiple Choice Geography #1 | 136,510 | 0 | - |
| April Fools' Quiz #1 | 59,807 | 0 | - |
| Airport Codes Quiz #1 | 215,374 | 0 | - |
| Famous Firsts #1 | 69,112 | 0 | - |
| Cities by Wikipedia Descriptions #1 | 55,482 | 0 | - |
| World Language General Knowledge #1 | 71,117 | 0 | - |
| General Knowledge True False #1 | 55,566 | 0 | - |
| World Cities by Clue #1 | 74,208 | 0 | - |
| Bible Quotes Quiz #1 | 61,962 | 0 | - |
| Bible Characters Quiz #1 | 105,790 | 0 | - |
| Books of the Protestant Bible | 210,641 | 0 | - |
| Singapore MRT/LRT Stations Quiz | 272 | - | - |
| Name a Valid Answer - Science | 41,064 | 0 | - |
| Name a Country A-Z | 244,103 | 0 | - |
| Name a World Capital A-Z | 176,418 | 0 | - |
| Europe Capitals Quiz | 1,590,140 | 0 | - |
| Digits of Pi | 1,163,932 | 0 | - |
| Fast Math - Multiplication | 1,163,018 | 0 | - |
| Mathematics General Knowledge | 67,189 | 0 | - |
| Numbered Answers Quiz #1 | 40,412 | 0 | - |
| Multiple Choice General Knowledge #1 | 255,059 | 0 | - |
| 100 General Knowledge Questions of Varying Difficulty | 133,259 | 0 | - |
| Science by Picture - A | 2,367 | - | - |
| Speed Symbol by Element | 104,935 | 0 | - |
| "Ologies" Quiz | 97,266 | 0 | - |
| Random Symbol to Element | 93,233 | 0 | - |
| Science Multiple Choice #1 | 86,681 | 0 | - |
| Major Taxonomic Ranks | 80,767 | 0 | - |
| Irregular Plurals #1 | 142,661 | 0 | - |
| Science Vocabulary #1 | 71,951 | 0 | - |
| Antonyms Quiz #1 | 328,766 | 0 | - |
| What's Bigger? #1 | 150,584 | 0 | - |
| History True or False #1 | 103,253 | 0 | - |
| Geographic Groups of Two #1 | 237,228 | 0 | - |
| Words that are European Cities | 53,716 | 0 | - |
| Words Ending in "Graphy" | 83,739 | 0 | - |
| Elements by Atomic Number - Random | 146 | - | - |
| Cities in European History #1 | 134,176 | 0 | - |
| Singapore Armed Forces Generals/Admirals Quiz | 4 | - | - |
