| Regions of Spain Quiz | 0 | - | 4.90 | 113,919 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,460 |
| States of Germany | 0 | - | 4.96 | 152,501 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,020 |
| Regions of Italy | 0 | - | 4.92 | 75,847 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,137 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,184 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,330 |
| Departments of France | 0 | - | 4.93 | 54,077 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,544 |
| England or Wales? | 0 | - | 4.94 | 45,682 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,111 |
| Official European Union Languages | 0 | - | 4.97 | 238,474 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,825 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,149 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,284 |
| Name that Greek Letter | 0 | - | 4.93 | 323,402 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,460 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,979 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,063 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,231 |
| Canary Islands | 0 | - | 4.62 | 17,479 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,830 |
| Top African Languages on a Map | 0 | - | 4.92 | 74,012 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,658 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,356 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,453 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,707 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,346 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,996 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,610 |
| Languages of Spain | 0 | - | 4.36 | 23,315 |
| Counties of England | 0 | - | 4.97 | 796,560 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,853 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,417 |
| Capital Cities with Spanish Names | 0 | - | 4.90 | 77,550 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,383 |
| Celtic Nations | 0 | - | 4.69 | 46,940 |
| Regions of France | 0 | - | 4.72 | 120,747 |
| France Immigration by Country | 0 | - | 4.70 | 76,505 |
| Famous Germans | 0 | - | 4.50 | 55,286 |
| German Groups of Things | 0 | - | 4.46 | 38,473 |
| Germany True or False? | 0 | - | 4.61 | 48,794 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,002 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,480 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,345 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,263 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,492 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,229 |
| The UK for Americans - True or False | 0 | - | 4.43 | 58,626 |
| Champions League Winners | 0 | - | 4.92 | 1,006,507 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,114 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,477 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,959 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,094 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,395 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,792 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,122 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,614 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,891 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,986 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,600 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,028 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,693 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,211 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,487 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,205 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,783 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,094 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,679 |
| Famous French People | 0 | - | 4.06 | 35,554 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,717 |
| Word Chain - France | 0 | - | 4.38 | 42,775 |
| Germany Country Quiz | 0 | - | 4.82 | 157,825 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,311 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,992 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,909 |
| Italy Country Quiz | 0 | - | 4.82 | 123,387 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,340 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,020 |
| Italian Foods | 0 | - | 4.30 | 72,773 |
| The Mafia Quiz | 0 | - | 4.46 | 23,319 |
| History of The Netherlands | 0 | - | 4.46 | 17,431 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,036 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,916 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,630 |
| Biggest Spanish Empire Countries | 0 | - | 4.91 | 115,965 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,697 |
| British Spellings | 0 | - | 4.06 | 99,446 |
| British Groups of Things | 0 | - | 4.25 | 82,862 |
| British Acronyms | 0 | - | 4.40 | 45,796 |
| UK Immigration by Country | 0 | - | 4.94 | 140,879 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,035 |
| United Kingdom Country Quiz | 0 | - | 4.96 | 139,756 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,573 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,777 |
| Geography of Scotland | 0 | - | 4.63 | 21,613 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,312 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,063 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,597 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,684 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,932 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,435 |
| Slavic Languages | 0 | - | 4.68 | 54,353 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,779 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,764 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,625 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,059 |
| France A-Z | 0 | - | 4.16 | 38,202 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,193 |
| French History Multiple Choice | 0 | - | 4.55 | 33,034 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,035 |
| History of Germany | 0 | - | 4.39 | 52,816 |
| The Trojan War | 0 | - | 4.83 | 39,719 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,816 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,608 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,518 |
| Roman Emperors | 0 | - | 4.95 | 120,005 |
| History of Spain | 0 | - | 4.23 | 21,085 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,263 |
| Switzerland A-Z | 0 | - | 4.45 | 25,643 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,677 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,021 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,768 |
| Malta Country Quiz | 0 | - | 4.81 | 31,054 |
| History of Russia Quiz | 0 | - | 4.47 | 31,914 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,723 |
| Movies Set in France | 0 | - | 4.26 | 13,119 |
| French Inventions | 0 | - | 4.08 | 13,897 |
| History of Paris | 0 | - | 4.24 | 13,646 |
| Word Chain - Germany | 0 | - | 4.31 | 22,586 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,728 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 125,936 |
| History of Italy | 0 | - | 4.55 | 31,970 |
| Word Chain - Italy | 0 | - | 4.07 | 23,164 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,771 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,103 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,656 |
| Famous Nordic People | 0 | - | 4.34 | 20,111 |
| Geography of Spain | 0 | - | 4.59 | 22,073 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,340 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,529 |
| People on Money - England | 0 | - | 4.29 | 16,610 |
| Name a Valid English City | 0 | - | 4.19 | 16,725 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,185 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,178 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 118,418 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,895 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,559 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,470 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,594 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,510 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,817 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,672 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,985 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,405 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,317 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,271 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,935 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,218 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,228 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,574 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 65,711 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,425 |
| Capitals of French Regions | 0 | - | 4.45 | 16,066 |
| Kings of France Quiz | 0 | - | 4.20 | 32,741 |
| Capitals of German States | 0 | - | 4.74 | 28,953 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,330 |
| Ancient Greek Words | 0 | - | 4.93 | 111,575 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,125 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 69,970 |
| La Liga - Trofeo Pichichi | 0 | - | 4,54 | 7.143 |
| British to American Food Translation | 0 | - | 3.38 | 51,963 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,443 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,660 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,185 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,688 |
| Famous Scottish People | 0 | - | 4.22 | 18,393 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,112 |
| Song Title Translation - Spanish | 0 | - | 4.57 | 35,815 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,625 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,152 |
| Australian Capitals | 0 | - | 4.92 | 62,720 |
| European Physical Geography | 0 | - | 4.26 | 33,507 |
| Geography of Russia | 0 | - | 4.57 | 21,525 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,956 |
| History of Austria | 0 | - | 4.70 | 17,860 |
| Austria Country Quiz | 0 | - | 4.57 | 59,725 |
| Belgium Country Quiz | 0 | - | 4.73 | 71,785 |
| France Country Quiz | 0 | - | 4.70 | 134,961 |
| Biggest French Empire Countries | 0 | - | 4.49 | 65,155 |
| Geography of the French Empire | 0 | - | 4.45 | 27,057 |
| The French Revolution | 0 | - | 4.46 | 23,929 |
| France Multiple Choice | 0 | - | 4.39 | 40,739 |
| Tour de France Winners | 0 | - | 4.27 | 15,368 |
| History of France | 0 | - | 4.59 | 56,965 |
| Greece Country Quiz | 0 | - | 4.74 | 66,244 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,901 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,036 |
