| European Countries by First 2 Letters | 0 | - | 4.95 | 528,069 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,659 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,673 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,743 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,451 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,340 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,082 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,266 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,667 |
| Name the English Monarchs | 0 | - | 4.91 | 500,541 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,894 |
| Official European Union Languages | 0 | - | 4.97 | 237,809 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,414 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,817 |
| The Trojan War | 0 | - | 4.83 | 39,596 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,118 |
| Name that Greek Letter | 0 | - | 4.93 | 322,754 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,295 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,330 |
| Roman Emperors | 0 | - | 4.95 | 119,425 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,381 |
| British Monopoly Board | 0 | - | 4.52 | 41,108 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,788 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,693 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,115 |
| Spanish History A-Z | 0 | - | 4.37 | 19,238 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 353,043 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,332 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,737 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,165 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,138 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,026 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,484 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,388 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,060 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,836 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,467 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,655 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,824 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,150 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,536 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,797 |
| Famous Germans | 0 | - | 4.50 | 54,880 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,217 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,802 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,094 |
| Famous Irish People | 0 | - | 4.05 | 45,918 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,965 |
| Geography of Spain | 0 | - | 4.59 | 22,023 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,168 |
| British Geography A-Z | 0 | - | 4.41 | 19,476 |
| London A-Z | 0 | - | 4.10 | 40,717 |
| Champions League Winners | 0 | - | 4.92 | 1,001,676 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,943 |
| Celtic Nations | 0 | - | 4.69 | 46,881 |
| Monarchies of Europe | 0 | - | 4.90 | 97,770 |
| Federal Subjects of Russia | 0 | - | 4.95 | 145,655 |
| Countries Bordering France | 0 | - | 4.83 | 401,380 |
| States of Germany | 0 | - | 4.96 | 151,324 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,678 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,189 |
| Regions of Italy | 0 | - | 4.92 | 75,309 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,883 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,572 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,798 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,472 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,631 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,200 |
| Monarchies of Asia | 0 | - | 4.97 | 70,877 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,690 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,877 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 82,415 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,536 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,726 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,180 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,469 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,885 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,142 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,761 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,702 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,389 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,106 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,451 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,672 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,707 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,584 |
| European Geography A-Z | 0 | - | 4.29 | 49,135 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,326 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,195 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,871 |
| Austria... or Australia? | 0 | - | 4.68 | 104,147 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,074 |
| Departments of France | 0 | - | 4.93 | 53,454 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,731 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,025 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,629 |
| German History A-Z | 0 | - | 4.49 | 24,535 |
| Counties of Ireland | 0 | - | 4.92 | 194,203 |
| Italian History A-Z | 0 | - | 4.21 | 17,638 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,668 |
| Countries Closest to Italy | 0 | - | 4.97 | 197,465 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,468 |
| History of The Netherlands | 0 | - | 4.46 | 17,375 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,997 |
| Canary Islands | 0 | - | 4.61 | 17,445 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,348 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 69,696 |
| La Liga - Trofeo Pichichi | 0 | - | 4,54 | 7.049 |
| British Acronyms | 0 | - | 4.39 | 45,722 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,745 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,708 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,110 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,548 |
| England or Wales? | 0 | - | 4.94 | 45,518 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,409 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,723 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,439 |
| Top 10 U.S. States by Public Transit | 0 | - | 4.77 | 63,600 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,521 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,635 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,353 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,009 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,348 |
| Slavic Languages | 0 | - | 4.68 | 54,197 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,294 |
| France A-Z | 0 | - | 4.16 | 38,121 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,319 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,562 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,537 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,652 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,814 |
| Roman Names for Places | 0 | - | 4.62 | 58,093 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,732 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,239 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,547 |
| History of Spain | 0 | - | 4.23 | 21,055 |
| Languages of Spain | 0 | - | 4.36 | 23,252 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,214 |
| Monty Python Quotes | 0 | - | 4.88 | 42,388 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,939 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,819 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,970 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,705 |
| British History A-Z #1 | 0 | - | 4.45 | 46,330 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,512 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 399,457 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,045 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,853 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,308 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,185 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,745 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,676 |
| History of Russia Quiz | 0 | - | 4.49 | 31,859 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,663 |
| Famous French People | 0 | - | 4.12 | 28,159 |
| Kings of France Quiz | 0 | - | 4.20 | 32,639 |
| French History A-Z | 0 | - | 4.22 | 24,457 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,850 |
| German Loan Words | 0 | - | 4.27 | 135,653 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,793 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,460 |
| Ancient Greek Words | 0 | - | 4.93 | 111,186 |
| History of Italy | 0 | - | 4.55 | 31,911 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,525 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,147 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,586 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,350 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,504 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,946 |
| People on Money - England | 0 | - | 4.29 | 16,595 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,539 |
| Shakespearean Characters | 0 | - | 4.38 | 37,578 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,228 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,247 |
| English Royal Consorts | 0 | - | 4.37 | 37,284 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,609 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,187 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 140,159 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,542 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,993 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,865 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,160 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,811 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,095 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,136 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,872 |
| Capitals of French Regions | 0 | - | 4.45 | 16,025 |
| Regions of France | 0 | - | 4.78 | 120,105 |
| France Immigration by Country | 0 | - | 4.70 | 76,276 |
| German Groups of Things | 0 | - | 4.46 | 38,400 |
| Capitals of German States | 0 | - | 4.74 | 28,902 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,231 |
| Germany True or False? | 0 | - | 4.61 | 48,677 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,770 |
| Serie A Champions | 0 | - | 4.29 | 58,033 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,034 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,427 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,881 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,112 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,924 |
