| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,876 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 528,069 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,346 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,894 |
| Official European Union Languages | 0 | - | 4.97 | 237,809 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,414 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,817 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,214 |
| Slavic Languages | 0 | - | 4.68 | 54,197 |
| Austria... or Australia? | 0 | - | 4.68 | 104,147 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,788 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,663 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,732 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,693 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,043 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,332 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,150 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,536 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,797 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,217 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| Champions League Winners | 0 | - | 4.92 | 1,001,674 |
| Celtic Nations | 0 | - | 4.69 | 46,881 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,659 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,673 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,082 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,871 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,743 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,266 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,451 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,655 |
| Departments of France | 0 | - | 4.93 | 53,453 |
| States of Germany | 0 | - | 4.96 | 151,324 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,678 |
| Regions of Italy | 0 | - | 4.92 | 75,309 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,468 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,883 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,339 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,798 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,631 |
| England or Wales? | 0 | - | 4.94 | 45,518 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,408 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,659 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,326 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,195 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,667 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,118 |
| Name that Greek Letter | 0 | - | 4.93 | 322,754 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,562 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,521 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,635 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,353 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,009 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 46,932 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 34,802 |
| The Trojan War | 0 | - | 4.83 | 39,596 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,294 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,219 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,537 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,330 |
| Roman Emperors | 0 | - | 4.95 | 119,424 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,381 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,526 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,676 |
| History of Russia Quiz | 0 | - | 4.49 | 31,859 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,790 |
| Ancient Greek Words | 0 | - | 4.93 | 111,185 |
| History of Italy | 0 | - | 4.55 | 31,911 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,525 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,427 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,881 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,586 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,115 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,226 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,247 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,542 |
| Which African Country? | 0 | - | 4.58 | 36,315 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,736 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,165 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,138 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,026 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,484 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,388 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,060 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,836 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,467 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,655 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,862 |
| European Physical Geography | 0 | - | 4.26 | 33,439 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,160 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,811 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,095 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,136 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,824 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,256 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,288 |
| Geography of Russia | 0 | - | 4.57 | 21,495 |
| History of Austria | 0 | - | 4.70 | 17,815 |
| Capitals of French Regions | 0 | - | 4.45 | 16,025 |
| Regions of France | 0 | - | 4.78 | 120,105 |
| France Immigration by Country | 0 | - | 4.70 | 76,276 |
| Geography of the French Empire | 0 | - | 4.45 | 27,008 |
| The French Revolution | 0 | - | 4.46 | 23,877 |
| France Multiple Choice | 0 | - | 4.38 | 40,687 |
| History of France | 0 | - | 4.59 | 56,678 |
| Famous Germans | 0 | - | 4.50 | 54,880 |
| German Groups of Things | 0 | - | 4.46 | 38,400 |
| Capitals of German States | 0 | - | 4.74 | 28,902 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,231 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,443 |
| Germany True or False? | 0 | - | 4.61 | 48,677 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,770 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,018 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,965 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,112 |
| The Vikings! | 0 | - | 4.46 | 28,300 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,940 |
| The Portuguese Empire | 0 | - | 4.58 | 12,035 |
| American to British Word Translation | 0 | - | 4.13 | 138,463 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,168 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,827 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,924 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,205 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,371 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,523 |
| UK General Knowledge Multiple Choice #1 | 0 | - | 4.24 | 20,726 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,484 |
| Champions League Top 4 | 0 | - | 4.77 | 135,196 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,346 |
| Which Asian Country? | 0 | - | 4.64 | 57,497 |
| Countries of Africa | 0 | - | 5.00 | 2,524,072 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,873 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,369 |
| African East Coast | 0 | - | 4.96 | 95,618 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,445 |
| Oceania Map Quiz | 0 | - | 4.98 | 639,152 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,275 |
| Australian Capitals | 0 | - | 4.92 | 62,672 |
| Australia Map Quiz | 0 | - | 4.94 | 343,445 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,664 |
| United States Map Quiz | 0 | - | 4.98 | 4,149,786 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 211,311 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,506 |
| Top 10 Oldest African Countries | 0 | - | 4.88 | 27,798 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,141 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,459 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,469 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,885 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,142 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,761 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,702 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,388 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,106 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,451 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,552 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,672 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,474 |
| European Geography A-Z | 0 | - | 4.29 | 49,135 |
| The Only European Country ... | 0 | - | 4.91 | 215,426 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,475 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,348 |
| Seas of Europe | 0 | - | 4.37 | 84,519 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,951 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,594 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,006 |
| Presidents of France | 0 | - | 4.25 | 23,999 |
| France A-Z | 0 | - | 4.16 | 38,121 |
| Word Chain - France | 0 | - | 4.38 | 42,699 |
| France True or False? | 0 | - | 4.43 | 39,875 |
| French History Multiple Choice | 0 | - | 4.55 | 32,964 |
| History of Germany | 0 | - | 4.39 | 52,740 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,885 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,852 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,319 |
| Italian Foods | 0 | - | 4.31 | 72,521 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,178 |
| The Mafia Quiz | 0 | - | 4.46 | 23,259 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,652 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,814 |
| Roman Names for Places | 0 | - | 4.62 | 58,093 |
| Byzantine History | 0 | - | 4.91 | 28,720 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,997 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,547 |
| Canary Islands | 0 | - | 4.61 | 17,445 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 66,861 |
| Switzerland A-Z | 0 | - | 4.45 | 25,590 |
| Switzerland Immigration by Country | 0 | - | 4.70 | 29,490 |
| British Spellings | 0 | - | 4.06 | 99,366 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,597 |
| British Groups of Things | 0 | - | 4.25 | 82,800 |
| British Acronyms | 0 | - | 4.39 | 45,722 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,978 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,002 |
| British Monopoly Board | 0 | - | 4.52 | 41,108 |
| Geography of Scotland | 0 | - | 4.63 | 21,565 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,621 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,819 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,066 |
