| What Am I Talking About? #1 | 54,209 | 0 | - |
| Countries of the World Quiz | 47,571,506 | 0 | - |
| World Capitals Quiz | 5,082,410 | 0 | - |
| Science General Knowledge #1 | 166,310 | 0 | - |
| Elements of the Periodic Table | 2,247,856 | 0 | - |
| Elements by Symbol | 197,659 | 0 | - |
| Geography by Letter - A | 212,031 | 0 | - |
| General Knowledge Quiz #1 | 454,896 | 0 | - |
| General Knowledge - Think Fast | 268,510 | 0 | - |
| Countries that Start with A | 2,166,023 | 0 | - |
| A Answers Quiz #1 | 136,895 | 0 | - |
| A Vocabulary Words Quiz #1 | 62,145 | 0 | - |
| Geography General Knowledge #1 | 263,934 | 0 | - |
| Name a Valid Country #1 | 291,088 | 0 | - |
| History by Letter - A | 153,399 | 0 | - |
| Asian Geography By Letter - A | 71,234 | 0 | - |
| Easy General Knowledge #1 | 194,092 | 0 | - |
| History General Knowledge #1 | 128,513 | 0 | - |
| Crowd-Sourced General Knowledge #1 | 58,361 | 0 | - |
| Locations by Letter - A | 51,504 | 0 | - |
| City to Country Quiz #1 | 156,007 | 0 | - |
| Geography True or False #1 | 123,216 | 0 | - |
| Landmarks Picture Quiz #1 | 394,876 | 0 | - |
| Europe Geography Quiz #1 | 71,342 | 0 | - |
| Multiple Choice Geography #1 | 136,510 | 0 | - |
| April Fools' Quiz #1 | 59,808 | 0 | - |
| Airport Codes Quiz #1 | 215,375 | 0 | - |
| Famous Firsts #1 | 69,113 | 0 | - |
| Cities by Wikipedia Descriptions #1 | 55,482 | 0 | - |
| World Language General Knowledge #1 | 71,118 | 0 | - |
| General Knowledge True False #1 | 55,566 | 0 | - |
| World Cities by Clue #1 | 74,208 | 0 | - |
| Bible Quotes Quiz #1 | 61,963 | 0 | - |
| Bible Characters Quiz #1 | 105,791 | 0 | - |
| Books of the Protestant Bible | 210,644 | 0 | - |
| Singapore MRT/LRT Stations Quiz | 272 | - | - |
| Name a Valid Answer - Science | 41,066 | 0 | - |
| Name a Country A-Z | 244,106 | 0 | - |
| Name a World Capital A-Z | 176,421 | 0 | - |
| Europe Capitals Quiz | 1,590,171 | 0 | - |
| Digits of Pi | 1,163,936 | 0 | - |
| Fast Math - Multiplication | 1,163,047 | 0 | - |
| Mathematics General Knowledge | 67,196 | 0 | - |
| Numbered Answers Quiz #1 | 40,413 | 0 | - |
| Multiple Choice General Knowledge #1 | 255,060 | 0 | - |
| 100 General Knowledge Questions of Varying Difficulty | 133,262 | 0 | - |
| Science by Picture - A | 2,367 | - | - |
| Speed Symbol by Element | 104,937 | 0 | - |
| "Ologies" Quiz | 97,269 | 0 | - |
| Random Symbol to Element | 93,233 | 0 | - |
| Science Multiple Choice #1 | 86,684 | 0 | - |
| Major Taxonomic Ranks | 80,771 | 0 | - |
| Irregular Plurals #1 | 142,662 | 0 | - |
| Science Vocabulary #1 | 71,953 | 0 | - |
| Antonyms Quiz #1 | 328,776 | 0 | - |
| What's Bigger? #1 | 150,590 | 0 | - |
| History True or False #1 | 103,255 | 0 | - |
| Geographic Groups of Two #1 | 237,232 | 0 | - |
| Words that are European Cities | 53,724 | 0 | - |
| Words Ending in "Graphy" | 83,745 | 0 | - |
| Elements by Atomic Number - Random | 146 | - | - |
| Cities in European History #1 | 134,176 | 0 | - |
| Singapore Armed Forces Generals/Admirals Quiz | 4 | - | - |
