| All Country Flags of the World - Shuffled Order | 3,350 | - | - |
| World Capitals Quiz | 5,107,920 | 0 | - |
| U.S. Presidents Quiz | 3,726,979 | 0 | - |
| U.S. State Flags | 173,058 | 0 | - |
| North America Capitals Quiz | 222,289 | 0 | - |
| Top World Languages | 830,156 | 0 | - |
| Random Capital to Country | 2,602,181 | 0 | - |
| Periodic Table Symbols | 80,791 | 0 | - |
| Elements of the Periodic Table | 2,261,247 | 0 | - |
| U.S. State Capitals Quiz | 1,699,172 | 0 | - |
| Random Symbol to Element | 94,065 | 0 | - |
| Official Languages of the World | 423,308 | 0 | - |
| Top African Languages on a Map | 75,299 | 0 | - |
| Official Languages of the World on the Disappearing World Map | 117,664 | 0 | - |
| Top World Languages on a Map | 104,051 | 0 | - |
| "Hello," In Various Languages | 1,546 | - | - |
| How many languages can you say 'hello' in? | 332 | - | - |
| Spanish Words for Jobs | 26,191 | 0 | - |
| Common Descriptive Words in Spanish | 70,327 | 0 | - |
| Popular Spanish Verbs Vocabulary Quiz | 73,469 | - | - |
| Spanish Food Vocabulary Words Quiz | 38,152 | - | - |
| Spanish Clothing Vocabulary Quiz | 20,189 | - | - |
| Random Atomic Number to Element | 1,193 | - | - |
| Spanish Animal Words | 95,986 | 0 | - |
| Spanish Adjectives Vocabulary Words | 18,943 | - | - |
| Around the House Spanish Vocabulary Words | 16,092 | - | - |
| Spanish Animals Vocabulary Words Quiz | 11,838 | - | - |
| Megacities on a World Map | 257,051 | 0 | - |
| Biggest Lakes in the World | 89,937 | 0 | - |
| World geography - Top 10 Landforms: trenches, islands, rivers, waterfalls, lakes, mountains, deserts | 6,455 | - | - |
| Mountain Ranges on the Map | 62,481 | 0 | - |
| Mountains by Country | 82,002 | 0 | - |
| World Currencies Quiz on a Map | 61,890 | 0 | - |
| Europe currency quiz | 119 | - | - |
| 100 Biggest Cities in Europe with a Map | 348,874 | 0 | - |
| 100 Biggest Asian Cities on a Map | 9,343 | - | - |
| 100 Biggest U.S. Cities on a Map | 118,551 | 0 | - |
| Biggest Cities in 4 Random Countries on a Map | 132,475 | 0 | - |
| Biggest Cities in the U.S. - Extreme | 160,108 | 0 | - |
| 50 Largest Cities in South America | 1,101 | - | - |
| Top 10 Urban Areas by Region | 1,269 | - | - |
| Top 5 Cities by UN Geographic Regions | 1,810 | - | - |
| Top U.S. Universities | 145,861 | 0 | - |
| 5 Largest Cities for Every Letter on Map | 51,988 | 0 | - |
| Name a Valid City for Every Continent A-Z with a Map | 4,816 | - | - |
| 100 Biggest Cities in the World with Exceptions | 68,431 | 0 | - |
| Spanish Conjugation #1 - Preterite Tense | 428 | - | - |
| Spanish Conjugation #1 - Future Tense | 205 | - | - |
| Animals - Taxonomy to Common Name | 28,497 | 0 | - |
| Spanish Conjugation #1 - Present Tense | 586 | - | - |
| Spanish Conjugation #1 - Imperfect Tense | 235 | - | - |
| Spanish vocab week 45 | 8 | - | - |
| Spanish 5000 #11 - Verbs (Medium-Difficulty) | 131 | - | - |
| Spanish 5000 #16 - Verbs (Hard) | 78 | - | - |
| Spanish 5000 # 2 - Verbs (Easy) | 410 | - | - |
| Spanish 5000 #1 - Adjectives (Easy) | 196 | - | - |
| Spanish 5000 #7 - Nouns (Masculine, Easy) | 147 | - | - |
| Top Five Languages by Language Family | 54,548 | 0 | - |
| Spanish 5000 # 6 - Nouns (Feminine, Easy) | 133 | - | - |
| Spanish 5000 #13 - Nouns (Masculine, Medium-Difficulty) | 77 | - | - |
| Spanish 5000 #14 - Noun (Feminine, Cognates, Medium-Difficulty) | 41 | - | - |
| Spanish Vegetable Vocabulary Words Quiz | 6,251 | - | - |
| All Major North American Pro Sports Teams | 1,009,456 | 0 | - |
| 5-Letter Geography Chain #1 | 131,973 | 0 | - |
| Spanish Vocab by Category - Animals and Nature | 299 | - | - |
| U.S. & Canadian Geography on a Map | 40,020 | 0 | - |
| 50 Rivers on a World Map | 38,456 | 0 | - |
| 100 Rivers on a World Map | 101,660 | 0 | - |
| Rivers of the United States | 66,702 | 0 | - |
| Rivers of Europe Quiz | 56,904 | 0 | - |
| Map of Africa by Flag Colours | 17,901 | 0 | - |
| All U.S. States by License Plates Picture Quiz | 2,319 | - | - |
| Spanish Country Names | 37 | - | - |
| Names of Countries of the World in Spanish | 12 | - | - |
| Click 100 Geographic Features on a World Map | 5,435 | - | - |
| Click 100 Geographic Features on a World Map - Expert Mode | 6,506 | - | - |
| Mediterranean Cities by Map | 51,221 | 0 | - |
| Top Five Countries by Religion | 173,491 | 0 | - |
| 10 Biggest cities in Czechia | 304 | - | - |
| Seas of the World | 158,561 | 0 | - |
| All 3M Cities on the World Map | 75,714 | 0 | - |
| Every 1,000,000+ City on a Map | 116,512 | 0 | - |
| 500 Biggest Cities in the World | 21,854 | - | - |
| 500 Biggest Cities in the World on a Map | 124,051 | 0 | - |
| 250 Biggest Cities in Europe With a Map | 116,537 | 0 | - |
| Alphabets, Scripts, or Writing Systems | 40,143 | 0 | - |
| All 1M+ Cities in Africa on a Map | 27,126 | 0 | - |
| Name a Valid Year Each War Occurred In | 24,260 | 0 | - |
| Bodies of Water on the World Map | 53,113 | 0 | - |
| Largest Cities in the World if all the Ice Melts on a Map | 35,395 | 0 | - |
| Cities of China (With Some Help) | 31,791 | 0 | - |
| 100 Biggest Cities and Towns in the UK | 151,365 | 0 | - |
| 100 Biggest Cities in Germany on a Map | 100,119 | 0 | - |
| 100 Biggest Cities in Spain on a Map | 44,628 | 0 | - |
| Biggest Cities in Each U.S. State - Extreme | 84,723 | 0 | - |
| Every U.S. City that Has Ever Been the Largest In Its State | 23,928 | 0 | - |
| All 100k+ Cities in Europe on a Map | 102,990 | 0 | - |
| Countries of the World in All Featured Languages | 35,662 | 0 | - |
| US Presidents, Parties, and Years Served | 477 | - | - |
| U.S. Presidential Terms with Whammies | 20,507 | 0 | - |
| Every U.S. Metro Area on a Map | 83,079 | 0 | - |
| Top 50 Countries by Population - In Order | 335,694 | 0 | - |
| Huge List of Famous Lakes | 11,221 | 0 | - |
| World Coats of Arms | 65,187 | 0 | - |
| Straits on the World Map | 7,245 | - | - |
| All First-Level Subdivisions of Europe on a Map | 175,980 | 0 | - |
| Every Country Flag-Shape of the World | 44,970 | 0 | - |
| City to River #1 | 35,903 | 0 | - |
| City to River #2 - Difficult | 26,234 | 0 | - |
| A Superlative for Every European Country | 42,947 | 0 | - |
| Five Biggest Cities by Country - Extreme | 42,295 | 0 | - |
| Official Country Names of the World | 22,892 | 0 | - |
| Countries of the World in Alphabetical Order | 112,424 | 0 | - |
| U.S. Presidents by Picture | 428,592 | 0 | - |
| Numbers in Spanish to a Trillion | 22 | - | - |
| Every Country Shape | 471,443 | 0 | - |
| Spanish 5000 # 3 - Adverbs | 177 | - | - |
| Spanish 5000 #10 - Adjectives (Medium-Difficulty) | 72 | - | - |
| Spanish 5000 #17 - Adjectives (Hard) | 46 | - | - |
| UFC Champions | 2,899 | - | - |
| Letters in Sign Language | 536 | - | - |
| 10 Random Letters in ASL (American Sign Language) | 1,619 | - | - |
| Random Croatian words | 86 | - | - |
| The Thirteen Dwarves in the Hobbit | 28,822 | 0 | - |
| Tolkien's Middle Earth Map Quiz | 38,232 | 0 | - |
| All Countries of the World by Flag and First Letter | 84,111 | 0 | - |
| States of Mexico | 178,339 | 0 | - |
| Name the Constellations | 48,245 | 0 | - |
| All 1M Cities by Proximity | 582,172 | 0 | - |
| Current US Senators by Picture | 24,927 | - | - |
| Banderas del mundo | 372,368 | 0 | - |
| Spanish Nouns: Animals | 233 | - | - |
| Spanish: Interjections | 76 | - | - |
| Spanish: Food & Drink | 387 | - | - |
