| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,072 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 531,678 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,860 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,563 |
| Official European Union Languages | 0 | - | 4.97 | 239,409 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,431 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,136 |
| Slavic Languages | 0 | - | 4.68 | 54,607 |
| Austria... or Australia? | 0 | - | 4.68 | 104,650 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,920 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,217 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,830 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,992 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,877 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,139 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,869 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,612 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,335 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,999 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,469 |
| Celtic Nations | 0 | - | 4.61 | 47,059 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,830 |
| Champions League Winners | 0 | - | 4.92 | 1,012,948 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,549 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,590 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,239 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,682 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,854 |
| States of Germany | 0 | - | 4.95 | 153,955 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,519 |
| Regions of Italy | 0 | - | 4.92 | 76,671 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,642 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,989 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,594 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,805 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,687 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,082 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,341 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,391 |
| Departments of France | 0 | - | 4.93 | 54,844 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,696 |
| England or Wales? | 0 | - | 4.94 | 45,887 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,608 |
| Haiti... or Dominican Republic? | 0 | - | 4.70 | 40,814 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,700 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,141 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,242 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,774 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,007 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,570 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,431 |
| The Trojan War | 0 | - | 4.83 | 39,929 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,580 |
| Name that Greek Letter | 0 | - | 4.93 | 324,634 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,661 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,783 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,703 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,468 |
| Roman Emperors | 0 | - | 4.95 | 120,863 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,588 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,636 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,617 |
| History of Russia Quiz | 0 | - | 4.47 | 31,983 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,923 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,110 |
| History of Italy | 0 | - | 4.55 | 32,106 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,180 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,781 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,377 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,645 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,020 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,667 |
| European Geography By Letter - D | 0 | - | 4.50 | 110,025 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,698 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,027 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,841 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,353 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,573 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,257 |
| Europe Map Quiz | 0 | - | 5.00 | 4,780,197 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,445 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,101 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,395 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,363 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,190 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,414 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,634 |
| Capitals of French Regions | 0 | - | 4.45 | 16,153 |
| Regions of France | 0 | - | 4.70 | 121,712 |
| France Immigration by Country | 0 | - | 4.70 | 76,823 |
| Famous Germans | 0 | - | 4.50 | 55,661 |
| German Groups of Things | 0 | - | 4.47 | 38,592 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,483 |
| Germany True or False? | 0 | - | 4.61 | 48,959 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,311 |
| Ancient Greek Words | 0 | - | 4.93 | 112,221 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,050 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,406 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,625 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,379 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,642 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,537 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,762 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,768 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,825 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,546 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,276 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,019 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,792 |
| Australian Capitals | 0 | - | 4.92 | 62,804 |
| European Physical Geography | 0 | - | 4.26 | 33,571 |
| Which European Country - Multiple Choice | 0 | - | 4.51 | 84,538 |
| Geography of Russia | 0 | - | 4.57 | 21,574 |
| History of Austria | 0 | - | 4.70 | 17,950 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| France Multiple Choice | 0 | - | 4.39 | 40,810 |
| History of France | 0 | - | 4.61 | 57,459 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,539 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,329 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,980 |
| The Vikings! | 0 | - | 4.46 | 28,389 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,308 |
| The Portuguese Empire | 0 | - | 4.58 | 12,095 |
| American to British Word Translation | 0 | - | 4.14 | 139,528 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,015 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,259 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,506 |
| Champions League Top 4 | 0 | - | 4.77 | 138,156 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,451,019 |
| Asia Map Quiz | 0 | - | 4.99 | 922,873 |
| Which Asian Country? | 0 | - | 4.64 | 57,692 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,782 |
| Which African Country? | 0 | - | 4.58 | 36,431 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 51,244 |
| Australia Map Quiz | 0 | - | 4.95 | 345,730 |
| Paraguay... or Uruguay? | 0 | - | 4.55 | 26,760 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,515 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,397 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,828 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,238 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,688 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,770 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,081 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,888 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,586 |
| European Geography By Letter - I | 0 | - | 4.09 | 96,286 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,925 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,336 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,401 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,826 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,693 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,706 |
| European Geography A-Z | 0 | - | 4.29 | 49,429 |
| Country Codes of Europe | 0 | - | 3.43 | 13,783 |
| The Only European Country ... | 0 | - | 4.91 | 218,307 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,120 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,758 |
| Seas of Europe | 0 | - | 4.37 | 84,828 |
| European Geographic Groups of Four | 0 | - | 4.54 | 19,556 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,656 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,114 |
| Famous French People | 0 | - | 4.07 | 35,989 |
| Presidents of France | 0 | - | 4.25 | 24,292 |
| France A-Z | 0 | - | 4.16 | 38,306 |
| Word Chain - France | 0 | - | 4.38 | 42,896 |
| France True or False? | 0 | - | 4.44 | 40,031 |
| History of Germany | 0 | - | 4.39 | 52,943 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,170 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,999 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,138 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,919 |
| Italian Foods | 0 | - | 4.30 | 73,115 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,555 |
| The Mafia Quiz | 0 | - | 4.46 | 23,409 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 44,035 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,151 |
| Roman Names for Places | 0 | - | 4.62 | 58,603 |
| Byzantine History | 0 | - | 4.91 | 28,985 |
| Byzantine Emperors | 0 | - | 4.92 | 14,495 |
| History of The Netherlands | 0 | - | 4.46 | 17,526 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,092 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,729 |
| Canary Islands | 0 | - | 4.62 | 17,512 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,512 |
| Switzerland A-Z | 0 | - | 4.45 | 25,738 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,949 |
| British Spellings | 0 | - | 4.06 | 99,554 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,905 |
| British Groups of Things | 0 | - | 4.25 | 82,971 |
| British Acronyms | 0 | - | 4.40 | 45,899 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,073 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,085 |
| British Monopoly Board | 0 | - | 4.52 | 41,234 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,056 |
| Geography of Scotland | 0 | - | 4.63 | 21,704 |
| Wonderwall Lyrics | 0 | - | 4.25 | 74,004 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,007 |
