| England or Wales? | 0 | - | 4.94 | 45,486 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,195 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,755 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,641 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,294 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,002 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,847 |
| Official European Union Languages | 0 | - | 4.97 | 237,646 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,308 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,539 |
| Slavic Languages | 0 | - | 4.68 | 54,151 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,744 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,667 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,432 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,465 |
| Australia True or False | 0 | - | 4.87 | 56,670 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,316 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,097 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,287 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,443 |
| Germany True or False? | 0 | - | 4.61 | 48,661 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,741 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,502 |
| Champions League Winners | 0 | - | 4.92 | 1,000,630 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,618 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,588 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,682 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,329 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,279 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,853 |
| France Multiple Choice | 0 | - | 4.38 | 40,679 |
| States of Germany | 0 | - | 4.96 | 151,061 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,457 |
| Regions of Italy | 0 | - | 4.92 | 75,200 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 47,332 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,163 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,726 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,618 |
| North Korea... or South Korea? | 0 | - | 4.47 | 80,479 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,293 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,123 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,758 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,706 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,072 |
| Latvia Country Quiz | 0 | - | 4.75 | 31,886 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,631 |
| Departments of France | 0 | - | 4.93 | 53,297 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,437 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,235 |
| Bhutan... or Nepal? | 0 | - | 4.59 | 17,702 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,508 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,270 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,828 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,870 |
| French History Multiple Choice | 0 | - | 4.55 | 32,945 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,746 |
| The Trojan War | 0 | - | 4.83 | 39,561 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,569 |
| Name that Greek Letter | 0 | - | 4.93 | 322,526 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,150 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,521 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,278 |
| Roman Emperors | 0 | - | 4.95 | 119,230 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,350 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,102 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,566 |
| History of Russia Quiz | 0 | - | 4.49 | 31,844 |
| Lithuania Country Quiz | 0 | - | 4.60 | 31,477 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,382 |
| Ancient Greek Words | 0 | - | 4.93 | 111,094 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,059 |
| History of Italy | 0 | - | 4.55 | 31,897 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,565 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,092 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,028 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,127 |
| Japan Multiple Choice | 0 | - | 4.48 | 40,612 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,365 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,675 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,131 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,105 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,985 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,443 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,317 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,028 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,806 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,440 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,603 |
| Europe Map Quiz | 0 | - | 5.00 | 4,745,663 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,129 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,773 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,078 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,120 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,798 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,234 |
| Capitals of French Regions | 0 | - | 4.45 | 16,017 |
| Regions of France | 0 | - | 4.77 | 119,953 |
| France Immigration by Country | 0 | - | 4.72 | 76,195 |
| Famous Germans | 0 | - | 4.50 | 54,829 |
| German Groups of Things | 0 | - | 4.46 | 38,381 |
| Capitals of German States | 0 | - | 4.74 | 28,893 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,200 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,723 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,878 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,128 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,833 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,055 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,154 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,822 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,357 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,462 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,147 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,544 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,532 |
| Australian Capitals | 0 | - | 4.92 | 62,657 |
| United States Map Quiz | 0 | - | 4.98 | 4,148,354 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,432 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,853 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,101 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,719 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,674 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,358 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,087 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,428 |
| European Physical Geography | 0 | - | 4.26 | 33,423 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,521 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,650 |
| European Geography A-Z | 0 | - | 4.29 | 49,110 |
| Geography of Russia | 0 | - | 4.57 | 21,479 |
| History of Austria | 0 | - | 4.70 | 17,800 |
| Austria... or Australia? | 0 | - | 4.68 | 104,101 |
| Geography of the French Empire | 0 | - | 4.45 | 26,999 |
| Word Chain - France | 0 | - | 4.38 | 42,675 |
| The French Revolution | 0 | - | 4.46 | 23,860 |
| History of France | 0 | - | 4.59 | 56,618 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,423 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,868 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,841 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,831 |
| Italian Foods | 0 | - | 4.31 | 72,444 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,141 |
| The Mafia Quiz | 0 | - | 4.46 | 23,252 |
| Byzantine History | 0 | - | 4.91 | 28,702 |
| History of The Netherlands | 0 | - | 4.46 | 17,358 |
| The Vikings! | 0 | - | 4.46 | 28,285 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,859 |
| The Portuguese Empire | 0 | - | 4.58 | 12,027 |
| Canary Islands | 0 | - | 4.61 | 17,437 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,730 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,392 |
| American to British Word Translation | 0 | - | 4.13 | 138,264 |
| British Spellings | 0 | - | 4.06 | 99,354 |
| British Groups of Things | 0 | - | 4.25 | 82,777 |
| British Acronyms | 0 | - | 4.39 | 45,702 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,811 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,993 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,434 |
| British Monopoly Board | 0 | - | 4.52 | 41,096 |
| British Geography Multiple Choice | 0 | - | 4.49 | 43,258 |
| Geography of Scotland | 0 | - | 4.63 | 21,547 |
| Champions League Top 4 | 0 | - | 4.77 | 134,934 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,443,880 |
| Asia Map Quiz | 0 | - | 4.99 | 910,864 |
| Pasta... or Composer? | 0 | - | 4.63 | 26,626 |
| Countries of Africa | 0 | - | 5.00 | 2,521,213 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 98,644 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,809 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,250 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,213 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 115,890 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 160,676 |
| Top 10 Smallest African Countries by Area | 0 | - | 4.96 | 32,833 |
| African East Coast | 0 | - | 4.96 | 95,516 |
| African Countries with the Shortest Names | 0 | - | 4.98 | 152,744 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,357 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,200 |
| African Island Countries | 0 | - | 4.96 | 101,151 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,616 |
| All First-Level Subdivisions of Africa on a Map | 0 | - | 4.92 | 32,974 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,194 |
| Australian States and Territories | 0 | - | 4.96 | 141,354 |
| Australian Immigration by Country | 0 | - | 4.81 | 77,136 |
| Australia Map Quiz | 0 | - | 4.94 | 343,255 |
| Flags of North and South America | 0 | - | 4.99 | 370,101 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 112,398 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 143,510 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 128,803 |
| South America Map Quiz | 0 | - | 5.00 | 1,544,501 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,017,213 |
| North America Map Quiz | 0 | - | 4.98 | 246,515 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,539 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,823 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,802 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 54,861 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,067 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,464 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,679 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 67,817 |
