| England or Wales? | 0 | - | 4.94 | 45,749 |
| Austria... or Australia? | 0 | - | 4.68 | 104,440 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,637 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,053 |
| Departments of France | 0 | - | 4.93 | 54,277 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,566 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,103 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,989 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,813 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,173 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,236 |
| Official European Union Languages | 0 | - | 4.97 | 238,710 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,989 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,586 |
| The Trojan War | 0 | - | 4.83 | 39,768 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,028 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,598 |
| Roman Emperors | 0 | - | 4.95 | 120,230 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,042 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,758 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,787 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,868 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 357,128 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,409 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,454 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,894 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,391 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,396 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,123 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,877 |
| Champions League Winners | 0 | - | 4.91 | 1,008,339 |
| Celtic Nations | 0 | - | 4.69 | 46,967 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,245 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,597 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,125 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 78,749 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,354 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,138 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,656 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,732 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,940 |
| Countries Bordering France | 0 | - | 4.83 | 402,880 |
| Germany Country Quiz | 0 | - | 4.83 | 158,022 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,482 |
| States of Germany | 0 | - | 4.95 | 152,888 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,166 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,698 |
| Regions of Italy | 0 | - | 4.92 | 76,083 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,526 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,181 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,296 |
| The Vikings! | 0 | - | 4.46 | 28,357 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,020 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,181 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,813 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,138 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,296 |
| UK Immigration by Country | 0 | - | 4.94 | 141,035 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,009 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,094 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,805 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,382 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,724 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,707 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,532 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,547 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,383 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,913 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,230 |
| French History Multiple Choice | 0 | - | 4.55 | 33,092 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,061 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,038 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,936 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,200 |
| Name that Greek Letter | 0 | - | 4.93 | 324,008 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,771 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,689 |
| Counties of Ireland | 0 | - | 4.92 | 195,649 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,920 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,374 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,192 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,769 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,973 |
| Roman Names for Places | 0 | - | 4.62 | 58,354 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,208 |
| Greenland Country Quiz | 0 | - | 4.78 | 36,399 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,191 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,380 |
| British Monopoly Board | 0 | - | 4.52 | 41,182 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,248 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,050 |
| Name the English Monarchs | 0 | - | 4.91 | 503,369 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,184 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,987 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,738 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,916 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,624 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,667 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,782 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,300 |
| Slavic Languages | 0 | - | 4.68 | 54,416 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,247 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,630 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,933 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,074 |
| France A-Z | 0 | - | 4.16 | 38,226 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,279 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,988 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,606 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,107 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,160 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,253 |
| Famous Irish People | 0 | - | 4.05 | 46,008 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,636 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,578 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,422 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,427 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,492 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,630 |
| Geography of Spain | 0 | - | 4.59 | 22,090 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,010 |
| Switzerland A-Z | 0 | - | 4.45 | 25,664 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,723 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,030 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,313 |
| British Geography A-Z | 0 | - | 4.42 | 19,537 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,813 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,559 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,680 |
| London A-Z | 0 | - | 4.10 | 40,797 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,590 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,381 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,210 |
| History of Russia Quiz | 0 | - | 4.47 | 31,940 |
| Kings of France Quiz | 0 | - | 4.20 | 32,775 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,401 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,512 |
| Ancient Greek Words | 0 | - | 4.93 | 111,768 |
| History of Italy | 0 | - | 4.55 | 32,025 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,861 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,194 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,568 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,212 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,698 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,272 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,573 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,894 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,426 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,470 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 119,856 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,155 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,787 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,644 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,849 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,662 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,960 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,808 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,103 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,557 |
| Europe Map Quiz | 0 | - | 5.00 | 4,767,090 |
| European Physical Geography | 0 | - | 4.26 | 33,525 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,317 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,980 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,265 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,265 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 100,700 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,505 |
| Geography of Russia | 0 | - | 4.57 | 21,548 |
| History of Austria | 0 | - | 4.70 | 17,881 |
| Austria Country Quiz | 0 | - | 4.57 | 59,798 |
| Belgium Country Quiz | 0 | - | 4.72 | 71,870 |
| France Country Quiz | 0 | - | 4.70 | 135,079 |
| Capitals of French Regions | 0 | - | 4.45 | 16,093 |
| Regions of France | 0 | - | 4.72 | 121,005 |
| France Immigration by Country | 0 | - | 4.70 | 76,599 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,200 |
| Geography of the French Empire | 0 | - | 4.45 | 27,133 |
| The French Revolution | 0 | - | 4.47 | 24,031 |
| France Multiple Choice | 0 | - | 4.39 | 40,752 |
| Tour de France Winners | 0 | - | 4.27 | 15,394 |
| History of France | 0 | - | 4.59 | 57,149 |
| Famous Germans | 0 | - | 4.50 | 55,353 |
| German Groups of Things | 0 | - | 4.46 | 38,496 |
| Capitals of German States | 0 | - | 4.74 | 28,975 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,366 |
| Germany True or False? | 0 | - | 4.61 | 48,844 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,079 |
| Greece Country Quiz | 0 | - | 4.74 | 66,332 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,810 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,260 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,569 |
| Italy Country Quiz | 0 | - | 4.77 | 123,509 |
| Italian History A-Z | 0 | - | 4.21 | 17,729 |
| Luxembourg Country Quiz | 0 | - | 4.78 | 33,794 |
| Monaco Country Quiz | 0 | - | 4.47 | 41,540 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,444 |
| Netherlands Country Quiz | 0 | - | 4.53 | 80,581 |
| Nordic Cities Map Quiz | 0 | - | 4.77 | 90,500 |
| Portugal Country Quiz | 0 | - | 4.69 | 71,961 |
| The Portuguese Empire | 0 | - | 4.58 | 12,076 |
