| European Countries by First 2 Letters | 0 | - | 4.95 | 531,595 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,503 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,571 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 88,135 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,659 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,949 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,984 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,313 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,000 |
| Name the English Monarchs | 0 | - | 4.91 | 505,158 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,531 |
| Official European Union Languages | 0 | - | 4.97 | 239,370 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,398 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,052 |
| The Trojan War | 0 | - | 4.83 | 39,920 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,440 |
| Name that Greek Letter | 0 | - | 4.93 | 324,593 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,627 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,448 |
| Roman Emperors | 0 | - | 4.95 | 120,800 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,582 |
| British Monopoly Board | 0 | - | 4.52 | 41,231 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,204 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,988 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,369 |
| Spanish History A-Z | 0 | - | 4.37 | 19,416 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,859 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,463 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,562 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 120,926 |
| European Geography By Letter - C | 0 | - | 4.43 | 122,073 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,930 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,594 |
| European Geography By Letter - M | 0 | - | 4.69 | 131,943 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,787 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,316 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,537 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,220 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,154 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,860 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,051 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,738 |
| Famous Germans | 0 | - | 4.50 | 55,643 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,600 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,323 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,208 |
| Famous Irish People | 0 | - | 4.05 | 46,046 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,026 |
| Geography of Spain | 0 | - | 4.59 | 22,146 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,375 |
| British Geography A-Z | 0 | - | 4.42 | 19,586 |
| London A-Z | 0 | - | 4.10 | 40,848 |
| Champions League Winners | 0 | - | 4.92 | 1,012,618 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,558 |
| Celtic Nations | 0 | - | 4.61 | 47,053 |
| Monarchies of Europe | 0 | - | 4.90 | 98,586 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,731 |
| Countries Bordering France | 0 | - | 4.83 | 404,253 |
| States of Germany | 0 | - | 4.95 | 153,893 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,499 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,248 |
| Regions of Italy | 0 | - | 4.92 | 76,614 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,629 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,627 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,574 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,247 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,799 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,854 |
| Monarchies of Asia | 0 | - | 4.97 | 71,367 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,156 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,847 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,590 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,023 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,536 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,711 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,018 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,829 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,530 |
| European Geography By Letter - I | 0 | - | 4.09 | 96,231 |
| European Geography By Letter - K | 0 | - | 4.15 | 70,875 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,294 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,374 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,664 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,568 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,512 |
| European Geography A-Z | 0 | - | 4.29 | 49,426 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,679 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,758 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,059 |
| Austria... or Australia? | 0 | - | 4.68 | 104,636 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,813 |
| Famous French People | 0 | - | 4.07 | 35,978 |
| Departments of France | 0 | - | 4.93 | 54,809 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,058 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,367 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,983 |
| German History A-Z | 0 | - | 4.49 | 24,784 |
| Counties of Ireland | 0 | - | 4.92 | 196,749 |
| Italian History A-Z | 0 | - | 4.21 | 17,825 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,142 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,002 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,691 |
| History of The Netherlands | 0 | - | 4.46 | 17,521 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,092 |
| Canary Islands | 0 | - | 4.62 | 17,508 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,731 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 70,321 |
| La Liga - Trofeo Pichichi | 0 | - | 4,57 | 7.237 |
| British Acronyms | 0 | - | 4.40 | 45,897 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,627 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,051 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,819 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,936 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,157 |
| England or Wales? | 0 | - | 4.94 | 45,877 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,540 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,613 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,691 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,396 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,884 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,944 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,696 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,696 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,127 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,202 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,747 |
| Slavic Languages | 0 | - | 4.68 | 54,590 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,396 |
| France A-Z | 0 | - | 4.16 | 38,304 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,122 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,779 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,701 |
| Ancient Roman Trivia #2 | 0 | - | 4.60 | 43,972 |
| Geography of the Roman Empire | 0 | - | 4.56 | 52,142 |
| Roman Names for Places | 0 | - | 4.62 | 58,594 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,828 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,936 |
| Most Common First Names in Spain | 0 | - | 4.32 | 54,559 |
| History of Spain | 0 | - | 4.23 | 21,143 |
| Languages of Spain | 0 | - | 4.36 | 23,390 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,906 |
| Monty Python Quotes | 0 | - | 4.89 | 42,573 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,573 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,002 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,983 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,894 |
| British History A-Z #1 | 0 | - | 4.45 | 46,854 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,863 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,735 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,327 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,523 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,657 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,277 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,124 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,598 |
| History of Russia Quiz | 0 | - | 4.47 | 31,979 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,827 |
| Russian History A-Z | 0 | - | 4.35 | 32,041 |
| Kings of France Quiz | 0 | - | 4.20 | 32,866 |
| French History A-Z | 0 | - | 4.27 | 24,931 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,083 |
| German Loan Words | 0 | - | 4.27 | 140,345 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,827 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,552 |
| Ancient Greek Words | 0 | - | 4.93 | 112,197 |
| History of Italy | 0 | - | 4.55 | 32,104 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,167 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,231 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,772 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,461 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,562 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,424 |
| People on Money - England | 0 | - | 4.29 | 16,634 |
| Shakespearean Characters | 0 | - | 4.38 | 37,705 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,740 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,515 |
| English Royal Consorts | 0 | - | 4.38 | 37,472 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,707 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,629 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 142,670 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,393 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,298 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,441 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,091 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,394 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,361 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,122 |
| Capitals of French Regions | 0 | - | 4.45 | 16,150 |
| Regions of France | 0 | - | 4.70 | 121,671 |
| France Immigration by Country | 0 | - | 4.70 | 76,812 |
| German Groups of Things | 0 | - | 4.47 | 38,585 |
| Capitals of German States | 0 | - | 4.74 | 29,032 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,476 |
| Germany True or False? | 0 | - | 4.61 | 48,954 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,297 |
| Serie A Champions | 0 | - | 4.29 | 58,650 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,154 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,908 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,398 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,607 |
