| World Capitals Quiz | 5,078,722 | 0 | - |
| Elements of the Periodic Table | 2,245,893 | 0 | - |
| Countries of Europe - One Minute Sprint | 1,329,657 | 0 | - |
| 40 Historical People that Everyone Should Know | 1,014,287 | 0 | - |
| Countries that Start with T | 1,010,581 | 0 | - |
| Countries of the World - One Minute Sprint | 977,682 | 0 | - |
| Fruits by Picture | 807,633 | 0 | - |
| Original 151 Pokémon | 790,620 | 0 | - |
| Top World Languages | 823,209 | 0 | - |
| 12 x 12 Multiplication Table in 2 Minutes | 802,993 | 0 | - |
| Fast Typing Test - 100 WPM Challenge | 713,522 | 0 | - |
| Mythical Creatures Quiz #1 | 708,019 | 0 | - |
| Countries by Languages in 90 Seconds | 721,752 | 0 | - |
| Disney Animated Characters | 601,677 | 0 | - |
| NHL Hockey Teams Quiz | 652,865 | 0 | - |
| Oceania Map Quiz | 643,089 | 0 | - |
| All 1M Cities by Proximity | 578,794 | 0 | - |
| Ultimate Harry Potter Name Game | 493,559 | 0 | - |
| Olympian Gods Quiz | 501,345 | 0 | - |
| Countries, U.S. States, and Capitals by First Two Letters | 487,996 | 0 | - |
| Top Five Countries By Category #1 | 451,202 | 0 | - |
| Every Country Shape | 466,513 | 0 | - |
| Asian Countries by Borders in 30 Seconds | 415,521 | 0 | - |
| Basic Harry Potter Quiz | 378,955 | 0 | - |
| Landmarks Picture Quiz #1 | 394,742 | 0 | - |
| Save Humanity by Guessing Countries | 574,509 | 0 | - |
| Countries of Africa by Borders in 30 Seconds | 355,965 | 0 | - |
| Europe Cities Map Quiz | 364,720 | 0 | - |
| Official Languages of the World | 418,647 | 0 | - |
| Foods by Country of Origin #1 | 336,873 | 0 | - |
| 100 Biggest Cities in Europe with a Map | 346,200 | 0 | - |
| Name that Historical Figure #1 | 337,850 | 0 | - |
| Countries of Africa - One Minute Sprint | 322,496 | 0 | - |
| World Capitals by Proximity | 331,747 | 0 | - |
| Marvel Cinematic Universe - All Movies | 339,766 | 0 | - |
| Groups of Things - Harry Potter | 281,889 | 0 | - |
| Countries by Borders in 90 Seconds with an Empty Map | 279,586 | 0 | - |
| Countries with the Most Speakers of These Languages | 296,158 | 0 | - |
| Countries of Asia - One Minute Sprint | 275,581 | 0 | - |
| World Currency Quiz | 303,613 | 0 | - |
| Top 50 Countries by Population - In Order | 330,928 | 0 | - |
| World Capitals by Map | 286,993 | 0 | - |
| Groups of Five #1 | 245,029 | 0 | - |
| Groups of Four #1 | 248,492 | 0 | - |
| Multiple Choice General Knowledge #1 | 254,902 | 0 | - |
| World Capitals by First Two Letters in 90 Seconds | 246,504 | 0 | - |
| Countries with Five Letters | 282,067 | 0 | - |
| Capitals of Oceania Quiz | 270,368 | 0 | - |
| Geography General Knowledge #1 | 263,740 | 0 | - |
| Biggest Cities in the United States | 979,647 | 0 | - |
| Win the U.S. Presidential Election | 628,717 | 0 | - |
| UK Cities Map Quiz | 464,846 | 0 | - |
| North America Map Quiz | 248,914 | 0 | - |
| Europe Flags Map Quiz | 158,547 | 0 | - |
| Multiple Choice Geography #1 | 136,448 | 0 | - |
| Geographic Groups of Two #1 | 237,116 | 0 | - |
| Commonwealth of Nations Countries | 237,548 | 0 | - |
| Easy Geography True or False #2 | 61,588 | 0 | - |
| Things with Geographic Names #4 | 33,557 | 0 | - |
| Geography by Letter - N | 127,393 | 0 | - |
| Geographic Groups of Seven #1 | 141,104 | 0 | - |
| Asian Geography by Letter - N | 50,267 | 0 | - |
| Countries with Nuclear Weapons | 273,826 | 0 | - |
| Lonely Planet Top 200 Cities | 221,039 | 0 | - |
| Category Elimination - Countries #2 | 236,365 | 0 | - |
| Every European Flag - Sudden Death | 388,191 | 0 | - |
| Countries by Capitals and Borders in 90 Seconds | 226,743 | 0 | - |
| Five Richest Countries by Continent | 207,401 | 0 | - |
| One Capital by Letter by Continent | 17,326 | 0 | - |
| The Only Two Capitals... | 36,067 | 0 | - |
| Progressively Harder Geography on A Map | 120,757 | 0 | - |
| World Capitals in the Answer | 77,181 | 0 | - |
| Former Country Flag-Shape Picture Quiz | 89,730 | 0 | - |
| Geographic Groups of Two #4 | 78,366 | 0 | - |
| Countries by Picture #6 | 37,045 | 0 | - |
| Geography by Picture - L | 59,010 | 0 | - |
| Geography by Picture - I | 39,453 | 0 | - |
| Every European Country Shape | 201,976 | 0 | - |
| Europe Geography Quiz #2 | 71,979 | 0 | - |
| European Cities A-Z by Clue #1 | 78,985 | 0 | - |
| Europe Capitals - One Minute Sprint | 201,349 | 0 | - |
| Five Letter Geography #2 | 88,627 | 0 | - |
| City to Country Quiz #3 | 118,897 | 0 | - |
| Monarchies of the World | 168,969 | 0 | - |
| Capital Cities by Cartoon Riddles | 87,483 | 0 | - |
| 15 Largest Cities in Asia With a Map | 136,950 | 0 | - |
| Things that are Red by Picture | 14,305 | 0 | - |
| British Citizenship Test | 64,901 | 0 | - |
| Greek Mythology General Knowledge #1 | 112,004 | 0 | - |
| Aquatic Mammals by Picture | 45,713 | 0 | - |
| Fish Knowledge | 25,660 | 0 | - |
| Religion General Knowledge #5 | 46,265 | 0 | - |
| Name a Valid Word #1 | 119,897 | 0 | - |
| Geography by Letter - O | 129,947 | 0 | - |
| Most Populated Countries Bordering the Pacific Ocean | 95,658 | 0 | - |
| Countries of Europe before World War II with a Map | 53,503 | 0 | - |
| First Five Countries Alphabetically by Continent | 225,311 | 0 | - |
| Words for Leaders | 257,547 | 0 | - |
| Ancient City to Country | 108,083 | 0 | - |
| Recently Independent Countries | 159,367 | 0 | - |
| Name the 7 Dwarfs | 364,066 | 0 | - |
| Find The Mystery Country Using Color Clues #1 | 234,161 | 0 | - |
| Name a Valid Country #4 | 255,877 | 0 | - |
| Countries in World War I | 228,302 | 0 | - |
| Largest Countries with No Borders | 221,548 | 0 | - |
| Category Elimination - Countries #3 | 225,313 | 0 | - |
| Guess the Countries Being Drawn | 243,106 | 0 | - |
| Catholic Countries | 215,063 | 0 | - |
| Countries Closest to the U. S. | 209,629 | 0 | - |
| Airport Codes Quiz #1 | 215,236 | 0 | - |
| Countries with the Most Forest | 147,618 | 0 | - |
| Countries by Sports in 60 Seconds | 145,705 | 0 | - |
| All Modern-Day Countries Ever Controlled by Austria | 37,830 | 0 | - |
| Top 10 Most Famous Island Countries | 108,599 | 0 | - |
| Countries Closest to Afro-Eurasia | 25,703 | 0 | - |
| Top 10 Asian Countries by Coastline | 96,496 | 0 | - |
| Countries with the Longest Road Networks Quiz | 41,465 | 0 | - |
| Fertile Crescent Countries | 23,115 | 0 | - |
| Geography Quiz for Dummies | 108,790 | 0 | - |
| 10 Biggest Countries by Area - Whammies | 40,438 | 0 | - |
| Countries that Visit the UK the Most | 75,237 | 0 | - |
| Countries of Europe in 1360 with a Map | 57,008 | 0 | - |
| Countries of the World in 1789 with a Map | 66,648 | 0 | - |
| All 50k+ Cities in Europe with a Map | 34,971 | 0 | - |
| ALL First-Level Subdivisions of the World With a Map | 147,372 | 0 | - |
| Seas of the World | 157,165 | 0 | - |
| Countries, Capitals, Currencies and Official Languages | 106,881 | 0 | - |
| All Countries by Area : Four at a Time | 118,712 | 0 | - |
| World Countries - Blind Typing | 107,876 | 0 | - |
| Countries of the World in 1945 with a Map | 151,099 | 0 | - |
| Countries and Capitals of the World With a Map | 67,502 | 0 | - |
| Flag Emblems Scavenger Hunt | 67,384 | 0 | - |
| Countries by Road Network Shape | 67,116 | 0 | - |
| Count to 10 in Europe | 165,975 | 0 | - |
| Countries by Official Language | 195,089 | 0 | - |
| German Loan Words | 135,835 | 0 | - |
| 15 Most Populous Countries that Speak a Romance Language | 127,789 | 0 | - |
| Countries With the Most German Speakers | 97,024 | 0 | - |
| Top Romance Languages | 44,897 | 0 | - |
| Countries With the Most Russian Speakers | 101,195 | 0 | - |
| Countries With the Most English Speakers | 131,946 | 0 | - |
| 15 Most Populous Countries that Speak a Germanic Language | 82,609 | 0 | - |
| What's That Dutch Compound Word? | 28,360 | 0 | - |
| Top European Languages on a Map | 132,195 | 0 | - |
| General Knowledge for Dummies | 28,060 | 0 | - |
| Countries by Initial Letter and Continent #3 | 48,806 | 0 | - |
| European History for Dummies | 89,995 | 0 | - |
| Countries that Beat Saudi Arabia | 46,413 | 0 | - |
| Name a Valid Country #9 | 46,223 | 0 | - |
| Regions of Countries #2 | 123,962 | 0 | - |
| Countries by Milk Production | 44,029 | 0 | - |
| English Idioms #1 | 145,871 | 0 | - |
| Mythical Creatures #2 | 111,866 | 0 | - |
| Merged Company Logos #2 | 77,672 | 0 | - |
| 16 Questions that Prove that Physics Makes No Sense | 20,835 | 0 | - |
| Countries with the Largest Exclusive Economic Zone | 73,166 | 0 | - |
| Countries With the Most ISIS Fighters | 39,648 | 0 | - |
| Click to Translate - Latin | 44,077 | 0 | - |
| Colors in Europe Quiz | 51,448 | 0 | - |
| Countries That Speak Portuguese | 100,084 | 0 | - |
| Countries of the World in All Featured Languages | 35,376 | 0 | - |
| English Words of Arabic Origin | 49,776 | 0 | - |
| European Greetings | 61,255 | 0 | - |
| Identify the Language on the World Map #1 | 59,815 | 0 | - |
| English Words of Russian Origin | 50,954 | 0 | - |
| 100 Books You Can't Do Without | 64,222 | 0 | - |
| Word Scramble - Musical Instruments | 59,746 | 0 | - |
| Animals that Start with T | 91,509 | 0 | - |
| Animals that Start with R | 87,449 | 0 | - |
| Animals that Start with P | 86,195 | 0 | - |
| Animals that Start with M | 84,079 | 0 | - |
| Animals that Start with L | 102,170 | 0 | - |
| Animals that Start with K | 66,590 | 0 | - |
| Marvel Superheroes | 297,753 | 0 | - |
| Regions of Spain Quiz | 114,136 | 0 | - |
| Harry Potter Patronus Charms | 31,196 | 0 | - |
| Title in the Lyrics - Disney Songs | 129,625 | 0 | - |
| Friends Theme Song Lyrics | 143,108 | 0 | - |
| Piano Man Lyrics Quiz | 82,907 | 0 | - |
| "A Whole New World" Lyrics | 67,600 | 0 | - |
| Take Me Home, Country Roads Lyrics | 68,112 | 0 | - |
| O Vocabulary Words Quiz #1 | 252,158 | 0 | - |
| Most Common English Verbs - Extreme | 157,413 | 0 | - |
| Things Named For People #1 | 157,273 | 0 | - |
| Country Name Etymologies #1 | 158,922 | 0 | - |
| C Vocabulary Words #1 | 126,302 | 0 | - |
| D Vocabulary Words Quiz #1 | 97,864 | 0 | - |
| Capital Cities - Sudden Death | 278,422 | 0 | - |
| Easy Geography True or False #3 | 28,727 | 0 | - |
| Click the Countries on a Borderless World Map #1 | 116,036 | 0 | - |
| Click the Countries on a Borderless World Map #2 | 82,367 | 0 | - |
