| European Countries by First 2 Letters | 0 | - | 4.95 | 527,872 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,873 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,783 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,151 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,155 |
| German Groups of Things | 0 | - | 4.46 | 38,389 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,642 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,867 |
| Official European Union Languages | 0 | - | 4.97 | 237,706 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,345 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,628 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,759 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,673 |
| British Groups of Things | 0 | - | 4.25 | 82,782 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,705 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,104 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,171 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,682 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,319 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,146 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,790 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,084 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,128 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,118 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,407 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,569 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,205 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,772 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,854 |
| Champions League Winners | 0 | - | 4.92 | 1,001,014 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,209 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,747 |
| Celtic Nations | 0 | - | 4.69 | 46,876 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,633 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,626 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,712 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,369 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,378 |
| States of Germany | 0 | - | 4.96 | 151,156 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,583 |
| Regions of Italy | 0 | - | 4.92 | 75,238 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 49,508 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,216 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,761 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,622 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,807 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,808 |
| Name a Valid African Country | 0 | - | 4.98 | 153,459 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,789 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,538 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,300 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,154 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,518 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,860 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,963 |
| Departments of France | 0 | - | 4.93 | 53,386 |
| Word Chain - France | 0 | - | 4.38 | 42,680 |
| Italian Foods | 0 | - | 4.31 | 72,479 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,448 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,998 |
| England or Wales? | 0 | - | 4.94 | 45,499 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,304 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,361 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,077 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,509 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,710 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,294 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,180 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 504,207 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,137 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,515 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,628 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,314 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,903 |
| Slavic Languages | 0 | - | 4.68 | 54,162 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,273 |
| The Trojan War | 0 | - | 4.83 | 39,577 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,760 |
| Name that Greek Letter | 0 | - | 4.93 | 322,602 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,200 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,527 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,302 |
| Roman Emperors | 0 | - | 4.95 | 119,303 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,964 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,363 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,541 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,577 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,972 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,591 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,795 |
| A Quiz About The Beatles | 0 | - | 4.56 | 47,751 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,511 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,025 |
| California Groups of Things | 0 | - | 4.25 | 45,340 |
| New York Groups of Things | 0 | - | 4.38 | 60,023 |
| U.S. History Groups of Two | 0 | - | 4.23 | 44,342 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,609 |
| History of Russia Quiz | 0 | - | 4.49 | 31,848 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,644 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,158 |
| Word Chain - Germany | 0 | - | 4.31 | 22,529 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,521 |
| Ancient Greek Words | 0 | - | 4.93 | 111,128 |
| History of Italy | 0 | - | 4.55 | 31,907 |
| Word Chain - Italy | 0 | - | 4.07 | 23,136 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,468 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,571 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,342 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,547 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,103 |
| Geography of Spain | 0 | - | 4.59 | 22,021 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,303 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,923 |
| Name a Valid English City | 0 | - | 4.19 | 16,678 |
| Imagine Lyrics | 0 | - | 4.53 | 43,149 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,493 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,909 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,440 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,697 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,141 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,119 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,000 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,453 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,352 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,039 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,819 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,448 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,620 |
| Europe Map Quiz | 0 | - | 5.00 | 4,746,985 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,806 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,257 |
| Countries that have Won the Most Eurovisions | 0 | - | 4.56 | 101,521 |
| Capitals of French Regions | 0 | - | 4.45 | 16,019 |
| Regions of France | 0 | - | 4.77 | 120,003 |
| France Immigration by Country | 0 | - | 4.72 | 76,232 |
| Famous Germans | 0 | - | 4.50 | 54,854 |
| Capitals of German States | 0 | - | 4.74 | 28,896 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,210 |
| Germany True or False? | 0 | - | 4.61 | 48,664 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,747 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,908 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,244 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,845 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,077 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,160 |
| British to American Food Translation | 0 | - | 3.38 | 51,909 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,467 |
| Beatles Lyrics First Names | 0 | - | 4.38 | 34,580 |
| Elton John Quiz | 0 | - | 4.48 | 18,442 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,413 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,438 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,199 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,215 |
| Groups of Things - The Bible | 0 | - | 4.43 | 55,115 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,064 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,725 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,016 |
| Australian Capitals | 0 | - | 4.92 | 62,662 |
| Word Chain - Australia | 0 | - | 4.37 | 38,084 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,676 |
| South American Geography Quiz #2 | 0 | - | 4.61 | 39,267 |
| South American Geography Quiz #1 | 0 | - | 4.73 | 32,527 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,398 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,948 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 68,936 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,446 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,866 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,112 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,731 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,684 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,369 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,095 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,436 |
| European Physical Geography | 0 | - | 4.26 | 33,430 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,663 |
| European Geography A-Z | 0 | - | 4.29 | 49,122 |
| Geography of Russia | 0 | - | 4.57 | 21,486 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,863 |
| History of Austria | 0 | - | 4.70 | 17,807 |
| Austria... or Australia? | 0 | - | 4.68 | 104,119 |
| French Foods | 0 | - | 4.00 | 27,643 |
| Geography of the French Empire | 0 | - | 4.45 | 27,000 |
| The French Revolution | 0 | - | 4.46 | 23,868 |
| France Multiple Choice | 0 | - | 4.38 | 40,686 |
| History of France | 0 | - | 4.59 | 56,649 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,425 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,872 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,845 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,902 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,397 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,160 |
| The Mafia Quiz | 0 | - | 4.46 | 23,254 |
| Byzantine History | 0 | - | 4.91 | 28,710 |
| History of The Netherlands | 0 | - | 4.46 | 17,369 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,901 |
| The Portuguese Empire | 0 | - | 4.58 | 12,031 |
| Canary Islands | 0 | - | 4.61 | 17,440 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,789 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,437 |
