| England or Wales? | 0 | - | 4.94 | 45,547 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,248 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,287 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,673 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,388 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,589 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,927 |
| Official European Union Languages | 0 | - | 4.97 | 237,916 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,482 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,042 |
| Slavic Languages | 0 | - | 4.68 | 54,215 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,815 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,707 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,563 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,438 |
| Australia True or False | 0 | - | 4.87 | 56,731 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,344 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,176 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,711 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 169,982 |
| Germany True or False? | 0 | - | 4.61 | 48,696 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,824 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,549 |
| Champions League Winners | 0 | - | 4.92 | 1,002,423 |
| Celtic Nations | 0 | - | 4.69 | 46,887 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 96,803 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,736 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 77,026 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,538 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,846 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,884 |
| France Multiple Choice | 0 | - | 4.38 | 40,691 |
| States of Germany | 0 | - | 4.96 | 151,516 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,759 |
| Regions of Italy | 0 | - | 4.92 | 75,388 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,414 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,427 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,893 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,645 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,558 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,354 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,245 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,226 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,022 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,407 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,929 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,686 |
| Departments of France | 0 | - | 4.93 | 53,564 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,484 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,517 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,727 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,536 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,639 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,416 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,123 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,975 |
| French History Multiple Choice | 0 | - | 4.55 | 32,978 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,846 |
| The Trojan War | 0 | - | 4.83 | 39,614 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,420 |
| Name that Greek Letter | 0 | - | 4.93 | 322,859 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,379 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,553 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,359 |
| Roman Emperors | 0 | - | 4.95 | 119,507 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,396 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,173 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,742 |
| History of Russia Quiz | 0 | - | 4.49 | 31,865 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,516 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,072 |
| Ancient Greek Words | 0 | - | 4.93 | 111,227 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,310 |
| History of Italy | 0 | - | 4.55 | 31,920 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,598 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,140 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,354 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,323 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,638 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,653 |
| European Geography By Letter - A | 0 | - | 4.61 | 136,822 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,545 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,417 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,266 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,637 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,572 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,175 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,928 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,538 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,770 |
| Europe Map Quiz | 0 | - | 5.00 | 4,750,694 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,175 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,831 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,115 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,152 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,956 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,316 |
| Capitals of French Regions | 0 | - | 4.45 | 16,030 |
| Regions of France | 0 | - | 4.75 | 120,199 |
| France Immigration by Country | 0 | - | 4.70 | 76,317 |
| Famous Germans | 0 | - | 4.50 | 54,960 |
| German Groups of Things | 0 | - | 4.46 | 38,407 |
| Capitals of German States | 0 | - | 4.74 | 28,911 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,249 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,801 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,046 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,666 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,932 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,154 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,187 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,967 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,382 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,543 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,444 |
| Africa Map Quiz | 0 | - | 5.00 | 2,112,786 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,535 |
| Australian Capitals | 0 | - | 4.92 | 62,683 |
| United States Map Quiz | 0 | - | 4.98 | 4,150,646 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,646 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,046 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,288 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,911 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,815 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,507 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,192 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,514 |
| European Physical Geography | 0 | - | 4.26 | 33,448 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,577 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,748 |
| European Geography A-Z | 0 | - | 4.29 | 49,161 |
| Geography of Russia | 0 | - | 4.57 | 21,496 |
| History of Austria | 0 | - | 4.70 | 17,821 |
| Austria... or Australia? | 0 | - | 4.68 | 104,177 |
| Geography of the French Empire | 0 | - | 4.45 | 27,013 |
| Word Chain - France | 0 | - | 4.38 | 42,712 |
| The French Revolution | 0 | - | 4.46 | 23,884 |
| History of France | 0 | - | 4.59 | 56,731 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,449 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,898 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,862 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,170 |
| Italian Foods | 0 | - | 4.30 | 72,555 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,196 |
| The Mafia Quiz | 0 | - | 4.46 | 23,269 |
| Byzantine History | 0 | - | 4.91 | 28,734 |
| History of The Netherlands | 0 | - | 4.46 | 17,386 |
| The Vikings! | 0 | - | 4.46 | 28,306 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,972 |
| The Portuguese Empire | 0 | - | 4.58 | 12,041 |
| Canary Islands | 0 | - | 4.62 | 17,453 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,950 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,527 |
| American to British Word Translation | 0 | - | 4.14 | 138,577 |
| British Spellings | 0 | - | 4.06 | 99,379 |
| British Groups of Things | 0 | - | 4.25 | 82,814 |
| British Acronyms | 0 | - | 4.39 | 45,730 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,841 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,007 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,507 |
| British Monopoly Board | 0 | - | 4.52 | 41,125 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,284 |
| Geography of Scotland | 0 | - | 4.63 | 21,573 |
| Champions League Top 4 | 0 | - | 4.77 | 135,399 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,445,273 |
| Asia Map Quiz | 0 | - | 4.99 | 912,641 |
| Pasta... or Composer? | 0 | - | 4.63 | 26,641 |
| Countries of Africa | 0 | - | 5.00 | 2,525,987 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,788 |
| Flags of Africa Quiz | 0 | - | 5.00 | 468,060 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,443 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,456 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 116,037 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,856 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,961 |
| African East Coast | 0 | - | 4.96 | 95,670 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,976 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,505 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,437 |
| African Island Countries | 0 | - | 4.96 | 101,301 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,879 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 33,055 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,359 |
| Australian States and Territories | 0 | - | 4.96 | 141,520 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,188 |
| Australia Map Quiz | 0 | - | 4.95 | 343,561 |
| Flags of North and South America | 0 | - | 4.99 | 371,127 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,468 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,684 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 129,086 |
| South America Map Quiz | 0 | - | 5.00 | 1,546,058 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,019,008 |
| North America Map Quiz | 0 | - | 4.98 | 247,202 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,605 |
| Canada Provinces and Territories | 0 | - | 5.00 | 340,612 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 638,535 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,969 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,459 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,528 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,746 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,960 |
