| All Country Flags of the World - Shuffled Order | 3,186 | - | - |
| World Capitals Quiz | 5,074,264 | 0 | - |
| U.S. Presidents Quiz | 3,699,249 | 0 | - |
| U.S. State Flags | 170,523 | 0 | - |
| North America Capitals Quiz | 219,834 | 0 | - |
| Top World Languages | 822,326 | 0 | - |
| Random Capital to Country | 2,591,599 | 0 | - |
| Periodic Table Symbols | 72,289 | 0 | - |
| Elements of the Periodic Table | 2,243,372 | 0 | - |
| U.S. State Capitals Quiz | 1,689,901 | 0 | - |
| Random Symbol to Element | 93,103 | 0 | - |
| Official Languages of the World | 418,104 | 0 | - |
| Top African Languages on a Map | 74,082 | 0 | - |
| Official Languages of the World on the Disappearing World Map | 116,608 | 0 | - |
| Top World Languages on a Map | 103,117 | 0 | - |
| "Hello," In Various Languages | 1,546 | - | - |
| How many languages can you say 'hello' in? | 330 | - | - |
| Spanish Words for Jobs | 26,097 | 0 | - |
| Common Descriptive Words in Spanish | 70,032 | 0 | - |
| Popular Spanish Verbs Vocabulary Quiz | 73,226 | - | - |
| Spanish Food Vocabulary Words Quiz | 38,047 | - | - |
| Spanish Clothing Vocabulary Quiz | 20,165 | - | - |
| Random Atomic Number to Element | 1,157 | - | - |
| Spanish Animal Words | 95,737 | 0 | - |
| Spanish Adjectives Vocabulary Words | 18,894 | - | - |
| Around the House Spanish Vocabulary Words | 16,051 | - | - |
| Spanish Animals Vocabulary Words Quiz | 11,804 | - | - |
| Megacities on a World Map | 254,574 | 0 | - |
| Biggest Lakes in the World | 89,636 | 0 | - |
| World geography - Top 10 Landforms: trenches, islands, rivers, waterfalls, lakes, mountains, deserts | 6,426 | - | - |
| Mountain Ranges on the Map | 61,957 | 0 | - |
| Mountains by Country | 81,778 | 0 | - |
| World Currencies Quiz on a Map | 61,057 | 0 | - |
| Currency of European countries | 105 | - | - |
| 100 Biggest Cities in Europe with a Map | 345,742 | 0 | - |
| 100 Biggest Asian Cities on a Map | 9,227 | - | - |
| 100 Biggest U.S. Cities on a Map | 117,079 | 0 | - |
| Biggest Cities in 4 Random Countries on a Map | 130,357 | 0 | - |
| Biggest Cities in the U.S. - Extreme | 159,329 | 0 | - |
| 50 Largest Cities in South America | 1,078 | - | - |
| Top 10 Urban Areas by Region | 1,242 | - | - |
| Top 5 Cities by UN Geographic Regions | 1,799 | - | - |
| Top U.S. Universities | 145,148 | 0 | - |
| 5 Largest Cities for Every Letter on Map | 51,445 | 0 | - |
| Name a Valid City for Every Continent A-Z with a Map | 4,740 | - | - |
| 100 Biggest Cities in the World with Exceptions | 67,650 | 0 | - |
| Spanish Conjugation #1 - Preterite Tense | 427 | - | - |
| Spanish Conjugation #1 - Future Tense | 203 | - | - |
| Animals - Taxonomy to Common Name | 28,290 | 0 | - |
| Spanish Conjugation #1 - Present Tense | 584 | - | - |
| Spanish Conjugation #1 - Imperfect Tense | 234 | - | - |
| Spanish vocab week 45 | 8 | - | - |
| Spanish 5000 #11 - Verbs (Medium-Difficulty) | 123 | - | - |
| Spanish 5000 #16 - Verbs (Hard) | 76 | - | - |
| Spanish 5000 # 2 - Verbs (Easy) | 389 | - | - |
| Spanish 5000 #1 - Adjectives (Easy) | 188 | - | - |
| Spanish 5000 #7 - Nouns (Masculine, Easy) | 137 | - | - |
| Top Five Languages by Language Family | 54,014 | 0 | - |
| Spanish 5000 # 6 - Nouns (Feminine, Easy) | 123 | - | - |
| Spanish 5000 #13 - Nouns (Masculine, Medium-Difficulty) | 76 | - | - |
| Spanish 5000 #14 - Noun (Feminine, Cognates, Medium-Difficulty) | 40 | - | - |
| Spanish Vegetable Vocabulary Words Quiz | 6,239 | - | - |
| All Major North American Pro Sports Teams | 1,000,411 | 0 | - |
| 5-Letter Geography Chain #1 | 131,229 | 0 | - |
| Spanish Vocab by Category - Animals and Nature | 298 | - | - |
| U.S. & Canadian Geography on a Map | 39,574 | 0 | - |
| 50 Rivers on a World Map | 37,921 | 0 | - |
| 100 Rivers on a World Map | 100,480 | 0 | - |
| Rivers of the United States | 66,209 | 0 | - |
| Rivers of Europe Quiz | 56,446 | 0 | - |
| Map of Africa by Flag Colours | 17,553 | 0 | - |
| All U.S. States by License Plates Picture Quiz | 2,296 | - | - |
| Spanish Country Names | 35 | - | - |
| Names of Countries of the World in Spanish | 11 | - | - |
| Click 100 Geographic Features on a World Map | 5,161 | - | - |
| Click 100 Geographic Features on a World Map - Expert Mode | 6,202 | - | - |
| Mediterranean Cities by Map | 51,126 | 0 | - |
| Top Five Countries by Religion | 171,565 | 0 | - |
| 10 Biggest cities in Czechia | 295 | - | - |
| Seas of the World | 156,929 | 0 | - |
| All 3M Cities on the World Map | 74,953 | 0 | - |
| Every 1,000,000+ City on a Map | 114,695 | 0 | - |
| 500 Biggest Cities in the World | 21,789 | - | - |
| 500 Biggest Cities in the World on a Map | 122,515 | 0 | - |
| 250 Biggest Cities in Europe With a Map | 115,362 | 0 | - |
| Alphabets, Scripts, or Writing Systems | 39,168 | 0 | - |
| All 1M+ Cities in Africa on a Map | 26,505 | 0 | - |
| Name a Valid Year Each War Occurred In | 23,650 | 0 | - |
| Bodies of Water on the World Map | 52,205 | 0 | - |
| Largest Cities in the World if all the Ice Melts on a Map | 35,239 | 0 | - |
| Cities of China (With Some Help) | 31,574 | 0 | - |
| 100 Biggest Cities and Towns in the UK | 147,715 | 0 | - |
| 100 Biggest Cities in Germany on a Map | 98,747 | 0 | - |
| 100 Biggest Cities in Spain on a Map | 43,999 | 0 | - |
| Biggest Cities in Each U.S. State - Extreme | 81,474 | 0 | - |
| Every U.S. City that Has Ever Been the Largest In Its State | 23,588 | 0 | - |
| All 100k+ Cities in Europe on a Map | 101,426 | 0 | - |
| Countries of the World in All Featured Languages | 35,324 | 0 | - |
| US Presidents, Parties, and Years Served | 463 | - | - |
| U.S. Presidential Terms with Whammies | 20,123 | 0 | - |
| Every U.S. Metro Area on a Map | 81,807 | 0 | - |
| Top 50 Countries by Population - In Order | 330,359 | 0 | - |
| Huge List of Famous Lakes | 10,933 | 0 | - |
| World Coats of Arms | 64,535 | 0 | - |
| Straits on the World Map | 7,193 | - | - |
| All First-Level Subdivisions of Europe on a Map | 171,927 | 0 | - |
| Every Country Flag-Shape of the World | 44,643 | 0 | - |
| City to River #1 | 35,848 | 0 | - |
| City to River #2 - Difficult | 26,062 | 0 | - |
| A Superlative for Every European Country | 42,592 | 0 | - |
| Five Biggest Cities by Country - Extreme | 41,572 | 0 | - |
| Official Country Names of the World | 22,620 | 0 | - |
| Countries of the World in Alphabetical Order | 110,708 | 0 | - |
| U.S. Presidents by Picture | 426,538 | 0 | - |
| Numbers in Spanish to a Trillion | 22 | - | - |
| Every Country Shape | 465,522 | 0 | - |
| Spanish 5000 # 3 - Adverbs | 164 | - | - |
| Spanish 5000 #10 - Adjectives (Medium-Difficulty) | 68 | - | - |
| Spanish 5000 #17 - Adjectives (Hard) | 45 | - | - |
| UFC Champions | 2,806 | - | - |
| Letters in Sign Language | 532 | - | - |
| 10 Random Letters in ASL (American Sign Language) | 1,608 | - | - |
| Random Croatian words | 85 | - | - |
| The Thirteen Dwarves in the Hobbit | 28,668 | 0 | - |
| Tolkien's Middle Earth Map Quiz | 37,864 | 0 | - |
| All Countries of the World by Flag and First Letter | 80,557 | 0 | - |
| States of Mexico | 176,144 | 0 | - |
| Name the Constellations | 44,992 | 0 | - |
