| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,244 |
| Name that Greek Letter | 0 | - | 4.93 | 325,077 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,105 |
| The Trojan War | 0 | - | 4.83 | 40,006 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,020 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,661 |
| Ancient Greek Words | 0 | - | 4.93 | 112,529 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,600 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,002 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,011 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,020 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,780 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,487 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,508 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,773 |
| Official European Union Languages | 0 | - | 4.97 | 239,871 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,704 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,050 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,616 |
| Roman Emperors | 0 | - | 4.95 | 121,279 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,337 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,065 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,208 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,347 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,311 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,990 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,965 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,513 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,538 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,201 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,473 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,438 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,953 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,056 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,898 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,030 |
| German Groups of Things | 0 | - | 4.47 | 38,645 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,709 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,475 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,245 |
| Geography of Spain | 0 | - | 4.59 | 22,190 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,857 |
| Champions League Winners | 0 | - | 4.92 | 1,016,679 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,696 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,757 |
| Celtic Nations | 0 | - | 4.61 | 47,106 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,025 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,808 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,945 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,024 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,625 |
| Countries Bordering France | 0 | - | 4.83 | 405,031 |
| German Loan Words | 0 | - | 4.27 | 141,039 |
| States of Germany | 0 | - | 4.95 | 154,641 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,729 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,968 |
| Regions of Italy | 0 | - | 4.92 | 77,138 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,826 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,405 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,794 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,152 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,591 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,391 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,546 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,753 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,864 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,756 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,906 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,766 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,979 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,138 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,824 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,948 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,975 |
| Austria... or Australia? | 0 | - | 4.67 | 104,782 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,967 |
| Departments of France | 0 | - | 4.93 | 55,231 |
| Word Chain - France | 0 | - | 4.38 | 42,946 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,166 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,506 |
| Counties of Ireland | 0 | - | 4.92 | 197,407 |
| Italian Foods | 0 | - | 4.30 | 73,302 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,280 |
| Countries Italy Declared War On | 0 | - | 4.70 | 45,952 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,451 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,194 |
| British Groups of Things | 0 | - | 4.26 | 83,027 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,116 |
| British Monopoly Board | 0 | - | 4.52 | 41,276 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,898 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,474 |
| Name the English Monarchs | 0 | - | 4.91 | 506,814 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,089 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,329 |
| England or Wales? | 0 | - | 4.94 | 45,984 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,246 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,975 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,411 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,781 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,835 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,851 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,480 |
| Name a Valid African Country | 0 | - | 4.98 | 155,103 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,731 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,035 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,755 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,362 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,704 |
| Slavic Languages | 0 | - | 4.67 | 54,714 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,648 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,834 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,372 |
| Mediterranean Foods | 0 | - | 3.80 | 11,503 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,417 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,655 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,858 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,747 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,589 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,214 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,323 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,221 |
| Roman Names for Places | 0 | - | 4.62 | 58,726 |
| Countries that Beat the Netherlands | 0 | - | 4.56 | 36,619 |
| Greenland... or Iceland? | 0 | - | 4.50 | 43,856 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,186 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,638 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,371 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,093 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,117 |
| Monty Python Quotes | 0 | - | 4.89 | 42,614 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,799 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,073 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,449 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 407,242 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,501 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 492,147 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 716,137 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,431 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,348 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,888 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,882 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,166 |
| Word Chain - Germany | 0 | - | 4.31 | 22,688 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,925 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,587 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,796 |
| Famous Irish People | 0 | - | 4.05 | 46,071 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Word Chain - Italy | 0 | - | 4.07 | 23,225 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,410 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,268 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,434 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,417 |
| Name a Valid English City | 0 | - | 4.19 | 16,831 |
| British Geography A-Z | 0 | - | 4.42 | 19,616 |
| Shakespearean Characters | 0 | - | 4.38 | 37,745 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,436 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,850 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,730 |
| London A-Z | 0 | - | 4.10 | 40,882 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,518 |
| Last Names by Country of Origin | 0 | - | 4.64 | 157,326 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,278 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,673 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,134 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,243 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,197 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,672 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,225 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,841 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,125 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,715 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,660 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,521 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 66,002 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,561 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,753 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Regions of France | 0 | - | 4.70 | 122,175 |
| France Immigration by Country | 0 | - | 4.70 | 76,957 |
| Famous Germans | 0 | - | 4.50 | 55,811 |
| Capitals of German States | 0 | - | 4.74 | 29,076 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,552 |
| Germany True or False? | 0 | - | 4.61 | 49,032 |
| German History A-Z | 0 | - | 4.49 | 24,924 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,511 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,426 |
| Serie A Champions | 0 | - | 4.29 | 58,840 |
| The Life of Julius Caesar | 0 | - | 4.39 | 39,184 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,979 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,534 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,804 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 70,489 |
| La Liga - Trofeo Pichichi | 0 | - | 4,57 | 7.322 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,415 |
