| World Capitals Quiz | 5,078,800 | 0 | - |
| Elements of the Periodic Table | 2,245,929 | 0 | - |
| Countries of Europe - One Minute Sprint | 1,329,680 | 0 | - |
| 40 Historical People that Everyone Should Know | 1,014,294 | 0 | - |
| Countries that Start with T | 1,010,590 | 0 | - |
| Countries of the World - One Minute Sprint | 977,693 | 0 | - |
| Fruits by Picture | 807,635 | 0 | - |
| Original 151 Pokémon | 790,630 | 0 | - |
| Top World Languages | 823,224 | 0 | - |
| 12 x 12 Multiplication Table in 2 Minutes | 803,003 | 0 | - |
| Fast Typing Test - 100 WPM Challenge | 713,523 | 0 | - |
| Mythical Creatures Quiz #1 | 708,026 | 0 | - |
| Countries by Languages in 90 Seconds | 721,765 | 0 | - |
| Disney Animated Characters | 601,681 | 0 | - |
| NHL Hockey Teams Quiz | 652,875 | 0 | - |
| Oceania Map Quiz | 643,109 | 0 | - |
| All 1M Cities by Proximity | 578,809 | 0 | - |
| Ultimate Harry Potter Name Game | 493,566 | 0 | - |
| Olympian Gods Quiz | 501,360 | 0 | - |
| Countries, U.S. States, and Capitals by First Two Letters | 487,996 | 0 | - |
| Top Five Countries By Category #1 | 451,209 | 0 | - |
| Every Country Shape | 466,529 | 0 | - |
| Asian Countries by Borders in 30 Seconds | 415,540 | 0 | - |
| Basic Harry Potter Quiz | 378,956 | 0 | - |
| Landmarks Picture Quiz #1 | 394,745 | 0 | - |
| Save Humanity by Guessing Countries | 574,560 | 0 | - |
| Countries of Africa by Borders in 30 Seconds | 355,968 | 0 | - |
| Europe Cities Map Quiz | 364,722 | 0 | - |
| Official Languages of the World | 418,656 | 0 | - |
| Foods by Country of Origin #1 | 336,874 | 0 | - |
| 100 Biggest Cities in Europe with a Map | 346,207 | 0 | - |
| Name that Historical Figure #1 | 337,852 | 0 | - |
| Countries of Africa - One Minute Sprint | 322,509 | 0 | - |
| World Capitals by Proximity | 331,754 | 0 | - |
| Marvel Cinematic Universe - All Movies | 339,782 | 0 | - |
| Groups of Things - Harry Potter | 281,892 | 0 | - |
| Countries by Borders in 90 Seconds with an Empty Map | 279,588 | 0 | - |
| Countries with the Most Speakers of These Languages | 296,161 | 0 | - |
| Countries of Asia - One Minute Sprint | 275,584 | 0 | - |
| World Currency Quiz | 303,631 | 0 | - |
| Top 50 Countries by Population - In Order | 330,942 | 0 | - |
| World Capitals by Map | 287,005 | 0 | - |
| Groups of Five #1 | 245,029 | 0 | - |
| Groups of Four #1 | 248,494 | 0 | - |
| Multiple Choice General Knowledge #1 | 254,904 | 0 | - |
| World Capitals by First Two Letters in 90 Seconds | 246,505 | 0 | - |
| Countries with Five Letters | 282,072 | 0 | - |
| Capitals of Oceania Quiz | 270,368 | 0 | - |
| Geography General Knowledge #1 | 263,742 | 0 | - |
| Biggest Cities in the United States | 979,665 | 0 | - |
| Win the U.S. Presidential Election | 628,751 | 0 | - |
| UK Cities Map Quiz | 464,856 | 0 | - |
| North America Map Quiz | 248,917 | 0 | - |
| Europe Flags Map Quiz | 158,549 | 0 | - |
| Multiple Choice Geography #1 | 136,449 | 0 | - |
| Geographic Groups of Two #1 | 237,117 | 0 | - |
| Commonwealth of Nations Countries | 237,549 | 0 | - |
| Easy Geography True or False #2 | 61,589 | 0 | - |
| Things with Geographic Names #4 | 33,557 | 0 | - |
| Geography by Letter - N | 127,397 | 0 | - |
| Geographic Groups of Seven #1 | 141,106 | 0 | - |
| Asian Geography by Letter - N | 50,268 | 0 | - |
| Countries with Nuclear Weapons | 273,842 | 0 | - |
| Lonely Planet Top 200 Cities | 221,039 | 0 | - |
| Category Elimination - Countries #2 | 236,366 | 0 | - |
| Every European Flag - Sudden Death | 388,229 | 0 | - |
| Countries by Capitals and Borders in 90 Seconds | 226,747 | 0 | - |
| Five Richest Countries by Continent | 207,405 | 0 | - |
| One Capital by Letter by Continent | 17,326 | 0 | - |
| The Only Two Capitals... | 36,070 | 0 | - |
| Progressively Harder Geography on A Map | 120,762 | 0 | - |
| World Capitals in the Answer | 77,181 | 0 | - |
| Former Country Flag-Shape Picture Quiz | 89,731 | 0 | - |
| Geographic Groups of Two #4 | 78,367 | 0 | - |
| Countries by Picture #6 | 37,045 | 0 | - |
| Geography by Picture - L | 59,012 | 0 | - |
| Geography by Picture - I | 39,453 | 0 | - |
| Every European Country Shape | 201,984 | 0 | - |
| Europe Geography Quiz #2 | 71,980 | 0 | - |
| European Cities A-Z by Clue #1 | 78,987 | 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 | 168,976 | 0 | - |
| Capital Cities by Cartoon Riddles | 87,484 | 0 | - |
| 15 Largest Cities in Asia With a Map | 136,954 | 0 | - |
| Things that are Red by Picture | 14,306 | 0 | - |
| British Citizenship Test | 64,901 | 0 | - |
| Greek Mythology General Knowledge #1 | 112,007 | 0 | - |
| Aquatic Mammals by Picture | 45,715 | 0 | - |
| Fish Knowledge | 25,660 | 0 | - |
| Religion General Knowledge #5 | 46,265 | 0 | - |
| Name a Valid Word #1 | 119,898 | 0 | - |
| Geography by Letter - O | 129,949 | 0 | - |
| Most Populated Countries Bordering the Pacific Ocean | 95,660 | 0 | - |
| Countries of Europe before World War II with a Map | 53,506 | 0 | - |
| First Five Countries Alphabetically by Continent | 225,312 | 0 | - |
| Words for Leaders | 257,548 | 0 | - |
| Ancient City to Country | 108,084 | 0 | - |
| Recently Independent Countries | 159,368 | 0 | - |
| Name the 7 Dwarfs | 364,073 | 0 | - |
| Find The Mystery Country Using Color Clues #1 | 234,170 | 0 | - |
| Name a Valid Country #4 | 255,884 | 0 | - |
| Countries in World War I | 228,303 | 0 | - |
| Largest Countries with No Borders | 221,551 | 0 | - |
| Category Elimination - Countries #3 | 225,317 | 0 | - |
| Guess the Countries Being Drawn | 243,113 | 0 | - |
| Catholic Countries | 215,065 | 0 | - |
| Countries Closest to the U. S. | 209,637 | 0 | - |
| Airport Codes Quiz #1 | 215,238 | 0 | - |
| Countries with the Most Forest | 147,618 | 0 | - |
| Countries by Sports in 60 Seconds | 145,709 | 0 | - |
| All Modern-Day Countries Ever Controlled by Austria | 37,831 | 0 | - |
| Top 10 Most Famous Island Countries | 108,601 | 0 | - |
| Countries Closest to Afro-Eurasia | 25,705 | 0 | - |
| Top 10 Asian Countries by Coastline | 96,497 | 0 | - |
| Countries with the Longest Road Networks Quiz | 41,466 | 0 | - |
| Fertile Crescent Countries | 23,115 | 0 | - |
| Geography Quiz for Dummies | 108,790 | 0 | - |
| 10 Biggest Countries by Area - Whammies | 40,442 | 0 | - |
| Countries that Visit the UK the Most | 75,239 | 0 | - |
| Countries of Europe in 1360 with a Map | 57,013 | 0 | - |
| Countries of the World in 1789 with a Map | 66,650 | 0 | - |
| All 50k+ Cities in Europe with a Map | 34,972 | 0 | - |
| ALL First-Level Subdivisions of the World With a Map | 147,377 | 0 | - |
| Seas of the World | 157,165 | 0 | - |
| Countries, Capitals, Currencies and Official Languages | 106,884 | 0 | - |
| All Countries by Area : Four at a Time | 118,714 | 0 | - |
| World Countries - Blind Typing | 107,883 | 0 | - |
| Countries of the World in 1945 with a Map | 151,106 | 0 | - |
| Countries and Capitals of the World With a Map | 67,509 | 0 | - |
| Flag Emblems Scavenger Hunt | 67,385 | 0 | - |
| Countries by Road Network Shape | 67,118 | 0 | - |
| Count to 10 in Europe | 165,975 | 0 | - |
| Countries by Official Language | 195,091 | 0 | - |
| German Loan Words | 135,836 | 0 | - |
| 15 Most Populous Countries that Speak a Romance Language | 127,789 | 0 | - |
| Countries With the Most German Speakers | 97,029 | 0 | - |
| Top Romance Languages | 44,898 | 0 | - |
| Countries With the Most Russian Speakers | 101,198 | 0 | - |
| Countries With the Most English Speakers | 131,947 | 0 | - |
| 15 Most Populous Countries that Speak a Germanic Language | 82,610 | 0 | - |
| What's That Dutch Compound Word? | 28,361 | 0 | - |
| Top European Languages on a Map | 132,197 | 0 | - |
| General Knowledge for Dummies | 28,060 | 0 | - |
| Countries by Initial Letter and Continent #3 | 48,806 | 0 | - |
| European History for Dummies | 89,996 | 0 | - |
| Countries that Beat Saudi Arabia | 46,413 | 0 | - |
| Name a Valid Country #9 | 46,224 | 0 | - |
| Regions of Countries #2 | 123,964 | 0 | - |
| Countries by Milk Production | 44,029 | 0 | - |
| English Idioms #1 | 145,881 | 0 | - |
| Mythical Creatures #2 | 111,867 | 0 | - |
| Merged Company Logos #2 | 77,674 | 0 | - |
| 16 Questions that Prove that Physics Makes No Sense | 20,836 | 0 | - |
| Countries with the Largest Exclusive Economic Zone | 73,167 | 0 | - |
| Countries With the Most ISIS Fighters | 39,648 | 0 | - |
| Click to Translate - Latin | 44,080 | 0 | - |
| Colors in Europe Quiz | 51,448 | 0 | - |
| Countries That Speak Portuguese | 100,084 | 0 | - |
| Countries of the World in All Featured Languages | 35,379 | 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 | 91,510 | 0 | - |
| Animals that Start with R | 87,450 | 0 | - |
| Animals that Start with P | 86,196 | 0 | - |
| Animals that Start with M | 84,079 | 0 | - |
| Animals that Start with L | 102,172 | 0 | - |
| Animals that Start with K | 66,591 | 0 | - |
| Marvel Superheroes | 297,757 | 0 | - |
| Regions of Spain Quiz | 114,143 | 0 | - |
| Harry Potter Patronus Charms | 31,196 | 0 | - |
| Title in the Lyrics - Disney Songs | 129,627 | 0 | - |
| Friends Theme Song Lyrics | 143,110 | 0 | - |
| Piano Man Lyrics Quiz | 82,907 | 0 | - |
| "A Whole New World" Lyrics | 67,600 | 0 | - |
| Take Me Home, Country Roads Lyrics | 68,113 | 0 | - |
| O Vocabulary Words Quiz #1 | 252,158 | 0 | - |
| Most Common English Verbs - Extreme | 157,415 | 0 | - |
| Things Named For People #1 | 157,274 | 0 | - |
| Country Name Etymologies #1 | 158,922 | 0 | - |
| C Vocabulary Words #1 | 126,302 | 0 | - |
| D Vocabulary Words Quiz #1 | 97,865 | 0 | - |
| Capital Cities - Sudden Death | 278,456 | 0 | - |
| Easy Geography True or False #3 | 28,728 | 0 | - |
| Click the Countries on a Borderless World Map #1 | 116,050 | 0 | - |
| Click the Countries on a Borderless World Map #2 | 82,369 | 0 | - |
