| England or Wales? | 0 | - | 4.94 | 45,820 |
| Departments of France | 0 | - | 4.93 | 54,560 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,891 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,234 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,828 |
| Australia... or New Zealand? | 0 | - | 4.83 | 61,744 |
| Austria... or Australia? | 0 | - | 4.68 | 104,539 |
| States of Germany | 0 | - | 4.95 | 153,412 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,328 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,856 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,836 |
| Germany Country Quiz | 0 | - | 4.83 | 158,270 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,628 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,374 |
| Official European Union Languages | 0 | - | 4.97 | 239,025 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,199 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,378 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,030 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,516 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,402 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,808 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,243 |
| The Trojan War | 0 | - | 4.83 | 39,825 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,338 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,711 |
| Roman Emperors | 0 | - | 4.95 | 120,470 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,135 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,788 |
| French History Multiple Choice | 0 | - | 4.55 | 33,139 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,930 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,672 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,585 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,582 |
| France A-Z | 0 | - | 4.16 | 38,276 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,509 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,540 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,440 |
| Celtic Nations | 0 | - | 4.69 | 47,006 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,274 |
| Capitals of French Regions | 0 | - | 4.45 | 16,117 |
| Regions of France | 0 | - | 4.70 | 121,359 |
| France Immigration by Country | 0 | - | 4.70 | 76,706 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,036 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,363 |
| UK General Knowledge Multiple Choice #3 | 0 | - | 4.53 | 18,125 |
| Champions League Winners | 0 | - | 4.92 | 1,010,526 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,032 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,440 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,316 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,401 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,202 |
| Geography of the French Empire | 0 | - | 4.45 | 27,162 |
| The French Revolution | 0 | - | 4.47 | 24,072 |
| France Multiple Choice | 0 | - | 4.39 | 40,778 |
| Countries Bordering France | 0 | - | 4.83 | 403,732 |
| Kings of France Quiz | 0 | - | 4.20 | 32,832 |
| History of France | 0 | - | 4.61 | 57,319 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,283 |
| Regions of Italy | 0 | - | 4.92 | 76,346 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,476 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,230 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,576 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,458 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,192 |
| Which Country of the United Kingdom? | 0 | - | 4.58 | 39,441 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,765 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,603 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,183 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,574 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,849 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,798 |
| Famous French People | 0 | - | 4.07 | 35,897 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,245 |
| Presidents of France | 0 | - | 4.25 | 24,220 |
| Word Chain - France | 0 | - | 4.38 | 42,858 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 38,884 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,707 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,097 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,955 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,750 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,668 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,446 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,154 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,307 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 116,319 |
| UK Immigration by Country | 0 | - | 4.94 | 141,215 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 140,297 |
| British Monopoly Board | 0 | - | 4.52 | 41,204 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,087 |
| Name the English Monarchs | 0 | - | 4.91 | 504,318 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,144 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,660 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,676 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,934 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,751 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,677 |
| Slavic Languages | 0 | - | 4.68 | 54,500 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,648 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,697 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,152 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,094 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,984 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,299 |
| Tour de France Winners | 0 | - | 4.27 | 15,430 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,512 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.39 | 82,654 |
| Geography of Germany | 0 | - | 4.35 | 17,213 |
| History of Germany | 0 | - | 4.39 | 52,909 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,408 |
| Name that Greek Letter | 0 | - | 4.93 | 324,270 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,954 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,733 |
| Counties of Ireland | 0 | - | 4.92 | 196,204 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,677 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,046 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,692 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,420 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 39,337 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,009 |
| Roman Names for Places | 0 | - | 4.62 | 58,437 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,336 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,559 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,523 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,673 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,445 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,108 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,110 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,553 |
| Switzerland A-Z | 0 | - | 4.45 | 25,699 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,789 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,052 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 75,441 |
| UK General Knowledge Multiple Choice #1 | 0 | - | 4.24 | 20,831 |
| UK General Knowledge Multiple Choice #2 | 0 | - | 4.33 | 22,725 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,396 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,895 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,774 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,222 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,008 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,832 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,045 |
| Iran... or Iraq? | 0 | - | 4.32 | 33,613 |
| Canada Multiple Choice Quiz | 0 | - | 4.50 | 49,460 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,409 |
| History of Russia Quiz | 0 | - | 4.47 | 31,962 |
| Movies Set in France | 0 | - | 4.26 | 13,135 |
| French Inventions | 0 | - | 4.10 | 13,910 |
| History of Paris | 0 | - | 4.24 | 13,665 |
| French History A-Z | 0 | - | 4.27 | 24,787 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,149 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,182 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,117 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,636 |
| Famous Irish People | 0 | - | 4.05 | 46,027 |
| History of Italy | 0 | - | 4.55 | 32,070 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,017 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,734 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,437 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,311 |
| Geography of Spain | 0 | - | 4.59 | 22,114 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,368 |
| British Geography A-Z | 0 | - | 4.42 | 19,570 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,692 |
| London A-Z | 0 | - | 4.10 | 40,826 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,053 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,455 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,846 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,398 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,063 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,406 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,249 |
| European Geography By Letter - R | 0 | - | 4.42 | 94,061 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,324 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,895 |
| Europe Map Quiz | 0 | - | 5.00 | 4,773,457 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,376 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,036 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,332 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,312 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,933 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,569 |
| France World Cup Squad 2018 | 0 | - | 4.41 | 33,871 |
| Famous Germans | 0 | - | 4.50 | 55,556 |
| German Groups of Things | 0 | - | 4.46 | 38,536 |
| Capitals of German States | 0 | - | 4.74 | 28,997 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,416 |
| Germany True or False? | 0 | - | 4.61 | 48,910 |
| German History A-Z | 0 | - | 4.49 | 24,672 |
| German Inventions | 0 | - | 3.91 | 30,255 |
| Embarrassing Chapters in German History | 0 | - | 3.40 | 12,656 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,695 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,180 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,526 |
| Ancient Greek Words | 0 | - | 4.93 | 111,991 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,881 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,207 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,299 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,529 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,358 |
| British to American Food Translation | 0 | - | 3.38 | 51,991 |
