| European Countries by First 2 Letters | 0 | - | 4.95 | 530,432 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,829 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,305 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,559 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,435 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,845 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,304 |
| Official European Union Languages | 0 | - | 4.97 | 238,872 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,098 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,920 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,346 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,172 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,089 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,900 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,474 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,901 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,035 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,940 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,419 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,344 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,002 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,290 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,287 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,517 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,142 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,768 |
| German Groups of Things | 0 | - | 4.46 | 38,515 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,451 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,171 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,414 |
| Champions League Winners | 0 | - | 4.91 | 1,009,490 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,381 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,256 |
| Celtic Nations | 0 | - | 4.69 | 46,987 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,355 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 84,931 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,248 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,927 |
| States of Germany | 0 | - | 4.95 | 153,094 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,253 |
| Regions of Italy | 0 | - | 4.92 | 76,199 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,395 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,324 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,380 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,740 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,511 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,564 |
| Name a Valid African Country | 0 | - | 4.98 | 154,316 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 174,799 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,741 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,564 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,601 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,329 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,888 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,996 |
| Departments of France | 0 | - | 4.93 | 54,412 |
| Word Chain - France | 0 | - | 4.38 | 42,831 |
| Italian Foods | 0 | - | 4.30 | 72,916 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,609 |
| British Groups of Things | 0 | - | 4.25 | 82,904 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,052 |
| England or Wales? | 0 | - | 4.94 | 45,784 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,936 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,306 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,049 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,198 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 296,785 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,783 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,440 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,636 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,671 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,852 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,530 |
| Slavic Languages | 0 | - | 4.68 | 54,459 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,035 |
| The Trojan War | 0 | - | 4.83 | 39,790 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,672 |
| Name that Greek Letter | 0 | - | 4.93 | 324,114 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,190 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,655 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,640 |
| Roman Emperors | 0 | - | 4.95 | 120,342 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,489 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,510 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,648 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,752 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,039 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,855 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,952 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,059 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,213 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,085 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,246 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,309 |
| History of Russia Quiz | 0 | - | 4.47 | 31,945 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,770 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,258 |
| Word Chain - Germany | 0 | - | 4.31 | 22,612 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,739 |
| Ancient Greek Words | 0 | - | 4.93 | 111,868 |
| History of Italy | 0 | - | 4.55 | 32,047 |
| Word Chain - Italy | 0 | - | 4.07 | 23,179 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,932 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,716 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,430 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,975 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,292 |
| Geography of Spain | 0 | - | 4.59 | 22,101 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,356 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,338 |
| Name a Valid English City | 0 | - | 4.19 | 16,744 |
| Imagine Lyrics | 0 | - | 4.53 | 43,375 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,796 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,995 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,554 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,803 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 120,215 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,575 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,147 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,882 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,162 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,831 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,114 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,928 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,216 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,739 |
| Europe Map Quiz | 0 | - | 5.00 | 4,769,783 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,819 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,538 |
| Capitals of French Regions | 0 | - | 4.45 | 16,102 |
| Regions of France | 0 | - | 4.72 | 121,168 |
| France Immigration by Country | 0 | - | 4.70 | 76,661 |
| Famous Germans | 0 | - | 4.50 | 55,509 |
| Capitals of German States | 0 | - | 4.74 | 28,984 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,391 |
| Germany True or False? | 0 | - | 4.61 | 48,877 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,130 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,742 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,859 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,263 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,477 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,335 |
| British to American Food Translation | 0 | - | 3.38 | 51,980 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,486 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,711 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 37,932 |
| Elton John Quiz | 0 | - | 4.49 | 18,486 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,547 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,598 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,281 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,590 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 838,280 |
| Africa Map Quiz | 0 | - | 5.00 | 2,121,264 |
| Oceania Map Quiz | 0 | - | 4.98 | 643,642 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,073 |
| Australian Capitals | 0 | - | 4.92 | 62,746 |
| Word Chain - Australia | 0 | - | 4.38 | 38,168 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,791 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,385 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,599 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,585 |
| United States Map Quiz | 0 | - | 4.98 | 4,163,014 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,234 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,141 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,504 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,362 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,047 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,802 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,440 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,934 |
| European Geography by Letter - W | 0 | - | 4.20 | 83,088 |
| European Physical Geography | 0 | - | 4.26 | 33,539 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,374 |
| European Geography A-Z | 0 | - | 4.29 | 49,354 |
| Geography of Russia | 0 | - | 4.57 | 21,552 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,005 |
| History of Austria | 0 | - | 4.70 | 17,900 |
| Austria... or Australia? | 0 | - | 4.68 | 104,486 |
| Famous French People | 0 | - | 4.07 | 35,821 |
| French Foods | 0 | - | 4.00 | 27,721 |
| Geography of the French Empire | 0 | - | 4.45 | 27,151 |
| The French Revolution | 0 | - | 4.47 | 24,053 |
| France Multiple Choice | 0 | - | 4.39 | 40,769 |
| History of France | 0 | - | 4.59 | 57,249 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,064 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,945 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,633 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,501 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,403 |
| The Mafia Quiz | 0 | - | 4.46 | 23,365 |
| Byzantine History | 0 | - | 4.91 | 28,908 |
| Byzantine Emperors | 0 | - | 4.92 | 14,348 |
| History of The Netherlands | 0 | - | 4.46 | 17,475 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,204 |
| The Portuguese Empire | 0 | - | 4.58 | 12,081 |
| Canary Islands | 0 | - | 4.62 | 17,490 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,014 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,811 |
| American to British Word Translation | 0 | - | 4.14 | 139,279 |
