| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,406 |
| Name that Greek Letter | 0 | - | 4.93 | 322,483 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,624 |
| The Trojan War | 0 | - | 4.83 | 39,550 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,114 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,626 |
| Ancient Greek Words | 0 | - | 4.93 | 111,066 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,713 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,676 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,652 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,010 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,310 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,332 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,900 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,836 |
| Official European Union Languages | 0 | - | 4.97 | 237,602 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,286 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,442 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,264 |
| Roman Emperors | 0 | - | 4.95 | 119,186 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,734 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,662 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,191 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,223 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,532 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,555 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,346 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,314 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 71,121 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,758 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,065 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 61,106 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,310 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,079 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,211 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,336 |
| German Groups of Things | 0 | - | 4.46 | 38,374 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,189 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,731 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,070 |
| Geography of Spain | 0 | - | 4.59 | 22,015 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,810 |
| Champions League Winners | 0 | - | 4.92 | 1,000,392 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,189 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,712 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,383 |
| Celtic Nations | 0 | - | 4.69 | 46,871 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,604 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,566 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,661 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,289 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,160 |
| Countries Bordering France | 0 | - | 4.83 | 401,016 |
| German Loan Words | 0 | - | 4.27 | 135,598 |
| States of Germany | 0 | - | 4.96 | 150,997 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,332 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,933 |
| Regions of Italy | 0 | - | 4.92 | 75,147 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,084 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,125 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,696 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,613 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,744 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,315 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,157 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,889 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,556 |
| Name a Valid African Country | 0 | - | 4.98 | 153,369 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,668 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.84 | 65,884 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,507 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,288 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,098 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,436 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,533 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,842 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,453 |
| Austria... or Australia? | 0 | - | 4.68 | 104,084 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,012 |
| Departments of France | 0 | - | 4.93 | 53,254 |
| Word Chain - France | 0 | - | 4.38 | 42,670 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,687 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,967 |
| Counties of Ireland | 0 | - | 4.92 | 193,954 |
| Italian Foods | 0 | - | 4.31 | 72,430 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,625 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,130 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,856 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,426 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,184 |
| British Groups of Things | 0 | - | 4.25 | 82,763 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,990 |
| British Monopoly Board | 0 | - | 4.52 | 41,094 |
| Countries that Visit the UK the Most | 0 | - | 4.87 | 74,624 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,415 |
| Name the English Monarchs | 0 | - | 4.92 | 499,947 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,023 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,993 |
| England or Wales? | 0 | - | 4.94 | 45,475 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,191 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,598 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,252 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,005 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,443 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,725 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,103 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,104 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,500 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,626 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,258 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,796 |
| Slavic Languages | 0 | - | 4.68 | 54,144 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,225 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 103,142 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,789 |
| Mediterranean Foods | 0 | - | 3.80 | 11,416 |
| Ancient Greek Inventions | 0 | - | 4.17 | 16,311 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.53 | 49,308 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,530 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,519 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,387 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,617 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,776 |
| Roman Names for Places | 0 | - | 4.62 | 58,041 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,721 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,127 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,332 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,641 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,964 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,101 |
| Monty Python Quotes | 0 | - | 4.88 | 42,371 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 63,843 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,781 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,822 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,929 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,465 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 487,579 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 710,845 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,006 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,139 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,544 |
| History of Russia Quiz | 0 | - | 4.49 | 31,837 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,633 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,821 |
| Word Chain - Germany | 0 | - | 4.31 | 22,519 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,237 |
| The Life of Alexander the Great | 0 | - | 4.49 | 18,452 |
| Famous Ancient Romans | 0 | - | 4.69 | 85,260 |
| Famous Irish People | 0 | - | 4.05 | 45,903 |
| History of Italy | 0 | - | 4.55 | 31,893 |
| Word Chain - Italy | 0 | - | 4.07 | 23,132 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,420 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,134 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,554 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,089 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,295 |
| Name a Valid English City | 0 | - | 4.19 | 16,670 |
| British Geography A-Z | 0 | - | 4.41 | 19,464 |
| Shakespearean Characters | 0 | - | 4.38 | 37,563 |
| Name Every Beatles Song | 0 | - | 4.97 | 234,968 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,103 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,603 |
| London A-Z | 0 | - | 4.10 | 40,693 |
| Top 4 in English Football, 1888–2025 | 0 | - | 4.92 | 139,903 |
| Last Names by Country of Origin | 0 | - | 4.64 | 156,137 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,892 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,329 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,661 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,116 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,096 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,971 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,433 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,293 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,019 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,801 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,433 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,588 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,604 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,790 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.73 | 65,522 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 27,870 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,216 |
| Capitals of French Regions | 0 | - | 4.45 | 16,016 |
| Regions of France | 0 | - | 4.77 | 119,895 |
| France Immigration by Country | 0 | - | 4.72 | 76,166 |
| Famous Germans | 0 | - | 4.50 | 54,814 |
| Capitals of German States | 0 | - | 4.74 | 28,889 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,193 |
| Germany True or False? | 0 | - | 4.61 | 48,659 |
| German History A-Z | 0 | - | 4.49 | 24,507 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,702 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,849 |
| Serie A Champions | 0 | - | 4.29 | 57,960 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,015 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,033 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,825 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,036 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 69,611 |
| La Liga - Trofeo Pichichi | 0 | - | 4,54 | 7.018 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,147 |
