| World Capitals Quiz | 5,117,705 | 0 | - |
| Elements of the Periodic Table | 2,265,223 | 0 | - |
| Countries of Europe - One Minute Sprint | 1,337,831 | 0 | - |
| 40 Historical People that Everyone Should Know | 1,017,325 | 0 | - |
| Countries that Start with T | 1,016,372 | 0 | - |
| Countries of the World - One Minute Sprint | 984,336 | 0 | - |
| Fruits by Picture | 810,013 | 0 | - |
| Original 151 Pokémon | 798,920 | 0 | - |
| Top World Languages | 832,266 | 0 | - |
| 12 x 12 Multiplication Table in 2 Minutes | 805,852 | 0 | - |
| Fast Typing Test - 100 WPM Challenge | 715,129 | 0 | - |
| Mythical Creatures Quiz #1 | 710,989 | 0 | - |
| Countries by Languages in 90 Seconds | 747,061 | 0 | - |
| Disney Animated Characters | 603,323 | 0 | - |
| NHL Hockey Teams Quiz | 659,010 | 0 | - |
| Oceania Map Quiz | 660,872 | 0 | - |
| All 1M Cities by Proximity | 583,588 | 0 | - |
| Ultimate Harry Potter Name Game | 495,058 | 0 | - |
| Olympian Gods Quiz | 504,765 | 0 | - |
| Countries, U.S. States, and Capitals by First Two Letters | 491,032 | 0 | - |
| Top Five Countries By Category #1 | 454,323 | 0 | - |
| Every Country Shape | 472,987 | 0 | - |
| Asian Countries by Borders in 30 Seconds | 418,417 | 0 | - |
| Basic Harry Potter Quiz | 379,937 | 0 | - |
| Landmarks Picture Quiz #1 | 396,809 | 0 | - |
| Save Humanity by Guessing Countries | 593,423 | 0 | - |
| Countries of Africa by Borders in 30 Seconds | 356,978 | 0 | - |
| Europe Cities Map Quiz | 366,730 | 0 | - |
| Official Languages of the World | 424,607 | 0 | - |
| Foods by Country of Origin #1 | 338,403 | 0 | - |
| 100 Biggest Cities in Europe with a Map | 349,659 | 0 | - |
| Name that Historical Figure #1 | 341,273 | 0 | - |
| Countries of Africa - One Minute Sprint | 324,664 | 0 | - |
| World Capitals by Proximity | 334,693 | 0 | - |
| Marvel Cinematic Universe - All Movies | 344,272 | 0 | - |
| Groups of Things - Harry Potter | 282,990 | 0 | - |
| Countries by Borders in 90 Seconds with an Empty Map | 281,440 | 0 | - |
| Countries with the Most Speakers of These Languages | 298,112 | 0 | - |
| Countries of Asia - One Minute Sprint | 277,062 | 0 | - |
| World Currency Quiz | 307,928 | 0 | - |
| Top 50 Countries by Population - In Order | 337,131 | 0 | - |
| World Capitals by Map | 290,236 | 0 | - |
| Groups of Five #1 | 246,015 | 0 | - |
| Groups of Four #1 | 249,434 | 0 | - |
| Multiple Choice General Knowledge #1 | 256,378 | 0 | - |
| World Capitals by First Two Letters in 90 Seconds | 247,236 | 0 | - |
| Countries with Five Letters | 284,872 | 0 | - |
| Capitals of Oceania Quiz | 273,540 | 0 | - |
| Geography General Knowledge #1 | 265,502 | 0 | - |
| Biggest Cities in the United States | 989,948 | 0 | - |
| Win the U.S. Presidential Election | 637,963 | 0 | - |
| UK Cities Map Quiz | 466,986 | 0 | - |
| North America Map Quiz | 253,082 | 0 | - |
| Europe Flags Map Quiz | 159,927 | 0 | - |
| Multiple Choice Geography #1 | 137,049 | 0 | - |
| Geographic Groups of Two #1 | 238,425 | 0 | - |
| Commonwealth of Nations Countries | 238,682 | 0 | - |
| Easy Geography True or False #2 | 62,118 | 0 | - |
| Things with Geographic Names #4 | 33,585 | 0 | - |
| Geography by Letter - N | 128,167 | 0 | - |
| Geographic Groups of Seven #1 | 141,883 | 0 | - |
| Asian Geography by Letter - N | 50,525 | 0 | - |
| Countries with Nuclear Weapons | 278,376 | 0 | - |
| Lonely Planet Top 200 Cities | 221,867 | 0 | - |
| Category Elimination - Countries #2 | 238,794 | 0 | - |
| Every European Flag - Sudden Death | 401,054 | 0 | - |
| Countries by Capitals and Borders in 90 Seconds | 228,258 | 0 | - |
| Five Richest Countries by Continent | 208,268 | 0 | - |
| One Capital by Letter by Continent | 17,735 | 0 | - |
| The Only Two Capitals... | 36,353 | 0 | - |
| Progressively Harder Geography on A Map | 122,602 | 0 | - |
| World Capitals in the Answer | 77,858 | 0 | - |
| Former Country Flag-Shape Picture Quiz | 90,383 | 0 | - |
| Geographic Groups of Two #4 | 78,858 | 0 | - |
| Countries by Picture #6 | 37,271 | 0 | - |
| Geography by Picture - L | 59,201 | 0 | - |
| Geography by Picture - I | 39,573 | 0 | - |
| Every European Country Shape | 203,370 | 0 | - |
| Europe Geography Quiz #2 | 72,268 | 0 | - |
| European Cities A-Z by Clue #1 | 88,475 | 0 | - |
| Europe Capitals - One Minute Sprint | 202,040 | 0 | - |
| Five Letter Geography #2 | 89,001 | 0 | - |
| City to Country Quiz #3 | 120,193 | 0 | - |
| Monarchies of the World | 170,693 | 0 | - |
| Capital Cities by Cartoon Riddles | 88,168 | 0 | - |
| 15 Largest Cities in Asia With a Map | 138,007 | 0 | - |
| Things that are Red by Picture | 14,385 | 0 | - |
| British Citizenship Test | 65,388 | 0 | - |
| Greek Mythology General Knowledge #1 | 113,368 | 0 | - |
| Aquatic Mammals by Picture | 46,091 | 0 | - |
| Fish Knowledge | 25,783 | 0 | - |
| Religion General Knowledge #5 | 46,438 | 0 | - |
| Name a Valid Word #1 | 120,555 | 0 | - |
| Geography by Letter - O | 130,676 | 0 | - |
| Most Populated Countries Bordering the Pacific Ocean | 96,006 | 0 | - |
| Countries of Europe before World War II with a Map | 54,404 | 0 | - |
| First Five Countries Alphabetically by Continent | 226,277 | 0 | - |
| Words for Leaders | 259,366 | 0 | - |
| Ancient City to Country | 108,424 | 0 | - |
| Recently Independent Countries | 160,594 | 0 | - |
| Name the 7 Dwarfs | 365,984 | 0 | - |
| Find The Mystery Country Using Color Clues #1 | 236,014 | 0 | - |
| Name a Valid Country #4 | 259,782 | 0 | - |
| Countries in World War I | 229,537 | 0 | - |
| Largest Countries with No Borders | 222,645 | 0 | - |
| Category Elimination - Countries #3 | 227,600 | 0 | - |
| Guess the Countries Being Drawn | 246,815 | 0 | - |
| Catholic Countries | 215,839 | 0 | - |
| Countries Closest to the U. S. | 210,831 | 0 | - |
| Airport Codes Quiz #1 | 217,347 | 0 | - |
| Countries with the Most Forest | 148,339 | 0 | - |
| Countries by Sports in 60 Seconds | 148,959 | 0 | - |
| All Modern-Day Countries Ever Controlled by Austria | 38,152 | 0 | - |
| Top 10 Most Famous Island Countries | 109,178 | 0 | - |
| Countries Closest to Afro-Eurasia | 26,064 | 0 | - |
| Top 10 Asian Countries by Coastline | 96,774 | 0 | - |
| Countries with the Longest Road Networks Quiz | 41,856 | 0 | - |
| Fertile Crescent Countries | 23,190 | 0 | - |
| Geography Quiz for Dummies | 109,493 | 0 | - |
| 10 Biggest Countries by Area - Whammies | 41,479 | 0 | - |
| Countries that Visit the UK the Most | 76,079 | 0 | - |
| Countries of Europe in 1360 with a Map | 57,796 | 0 | - |
| Countries of the World in 1789 with a Map | 67,663 | 0 | - |
| All 50k+ Cities in Europe with a Map | 35,729 | 0 | - |
| ALL First-Level Subdivisions of the World With a Map | 150,374 | 0 | - |
| Seas of the World | 158,999 | 0 | - |
| Countries, Capitals, Currencies and Official Languages | 108,266 | 0 | - |
| All Countries by Area : Four at a Time | 120,287 | 0 | - |
| World Countries - Blind Typing | 109,673 | 0 | - |
| Countries of the World in 1945 with a Map | 152,623 | 0 | - |
| Countries and Capitals of the World With a Map | 69,600 | 0 | - |
| Flag Emblems Scavenger Hunt | 68,186 | 0 | - |
| Countries by Road Network Shape | 67,825 | 0 | - |
| Count to 10 in Europe | 166,563 | 0 | - |
| Countries by Official Language | 196,350 | 0 | - |
| German Loan Words | 141,307 | 0 | - |
| 15 Most Populous Countries that Speak a Romance Language | 128,513 | 0 | - |
| Countries With the Most German Speakers | 99,324 | 0 | - |
| Top Romance Languages | 45,834 | 0 | - |
| Countries With the Most Russian Speakers | 103,487 | 0 | - |
| Countries With the Most English Speakers | 133,228 | 0 | - |
| 15 Most Populous Countries that Speak a Germanic Language | 82,835 | 0 | - |
| What's That Dutch Compound Word? | 28,676 | 0 | - |
| Top European Languages on a Map | 133,060 | 0 | - |
| General Knowledge for Dummies | 28,148 | 0 | - |
| Countries by Initial Letter and Continent #3 | 49,778 | 0 | - |
| European History for Dummies | 90,518 | 0 | - |
| Countries that Beat Saudi Arabia | 46,677 | 0 | - |
| Name a Valid Country #9 | 47,083 | 0 | - |
| Regions of Countries #2 | 124,717 | 0 | - |
| Countries by Milk Production | 44,329 | 0 | - |
| English Idioms #1 | 146,678 | 0 | - |
| Mythical Creatures #2 | 112,468 | 0 | - |
| Merged Company Logos #2 | 78,526 | 0 | - |
| 16 Questions that Prove that Physics Makes No Sense | 21,019 | 0 | - |
| Countries with the Largest Exclusive Economic Zone | 73,713 | 0 | - |
| Countries With the Most ISIS Fighters | 39,797 | 0 | - |
| Click to Translate - Latin | 45,271 | 0 | - |
| Colors in Europe Quiz | 51,648 | 0 | - |
| Countries That Speak Portuguese | 100,673 | 0 | - |
| Countries of the World in All Featured Languages | 35,758 | 0 | - |
| English Words of Arabic Origin | 49,940 | 0 | - |
| European Greetings | 61,464 | 0 | - |
| Identify the Language on the World Map #1 | 60,481 | 0 | - |
| English Words of Russian Origin | 51,111 | 0 | - |
| 100 Books You Can't Do Without | 64,624 | 0 | - |
| Word Scramble - Musical Instruments | 59,869 | 0 | - |
| Animals that Start with T | 92,215 | 0 | - |
| Animals that Start with R | 87,769 | 0 | - |
| Animals that Start with P | 86,592 | 0 | - |
| Animals that Start with M | 84,386 | 0 | - |
| Animals that Start with L | 102,590 | 0 | - |
| Animals that Start with K | 66,836 | 0 | - |
| Marvel Superheroes | 299,463 | 0 | - |
| Regions of Spain Quiz | 115,691 | 0 | - |
| Harry Potter Patronus Charms | 31,297 | 0 | - |
| Title in the Lyrics - Disney Songs | 129,922 | 0 | - |
| Friends Theme Song Lyrics | 143,854 | 0 | - |
| Piano Man Lyrics Quiz | 83,635 | 0 | - |
| "A Whole New World" Lyrics | 67,748 | 0 | - |
| Take Me Home, Country Roads Lyrics | 69,101 | 0 | - |
| O Vocabulary Words Quiz #1 | 252,757 | 0 | - |
| Most Common English Verbs - Extreme | 158,892 | 0 | - |
| Things Named For People #1 | 157,704 | 0 | - |
| Country Name Etymologies #1 | 159,647 | 0 | - |
| C Vocabulary Words #1 | 126,714 | 0 | - |
| D Vocabulary Words Quiz #1 | 98,137 | 0 | - |
| Capital Cities - Sudden Death | 286,944 | 0 | - |
| Easy Geography True or False #3 | 29,374 | 0 | - |
| Click the Countries on a Borderless World Map #1 | 122,119 | 0 | - |
| Click the Countries on a Borderless World Map #2 | 84,767 | 0 | - |
