| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,271 |
| Name that Greek Letter | 0 | - | 4.93 | 325,082 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,106 |
| The Trojan War | 0 | - | 4.83 | 40,008 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,029 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,666 |
| Ancient Greek Words | 0 | - | 4.93 | 112,535 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,605 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,012 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,019 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,027 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,790 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,488 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,508 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,778 |
| Official European Union Languages | 0 | - | 4.97 | 239,882 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,709 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,075 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,618 |
| Roman Emperors | 0 | - | 4.95 | 121,280 |
| Europe Geography Decoder | 0 | - | 4.87 | 70,338 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,065 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,255 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,350 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,315 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,990 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,990 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,513 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,539 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,204 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,474 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,438 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,967 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 88,059 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,901 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,055 |
| German Groups of Things | 0 | - | 4.47 | 38,645 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,710 |
| 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 | 103,860 |
| Champions League Winners | 0 | - | 4.92 | 1,016,718 |
| American Countries with the Shortest Names | 0 | - | 4.97 | 121,699 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,758 |
| Celtic Nations | 0 | - | 4.61 | 47,106 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,029 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,809 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,950 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 82,027 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,639 |
| Countries Bordering France | 0 | - | 4.83 | 405,047 |
| German Loan Words | 0 | - | 4.27 | 141,043 |
| States of Germany | 0 | - | 4.95 | 154,658 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,731 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,975 |
| Regions of Italy | 0 | - | 4.92 | 77,144 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,828 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,412 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,797 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,844 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,156 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,591 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,396 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 49,557 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,766 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,865 |
| Top 10 Non-English Languages Spoken in New York City | 0 | - | 4.85 | 66,757 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,906 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,767 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,983 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,143 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,839 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,954 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,982 |
| Austria... or Australia? | 0 | - | 4.67 | 104,783 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,968 |
| Departments of France | 0 | - | 4.93 | 55,237 |
| Word Chain - France | 0 | - | 4.38 | 42,948 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,174 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,508 |
| Counties of Ireland | 0 | - | 4.92 | 197,412 |
| Italian Foods | 0 | - | 4.30 | 73,305 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,284 |
| Countries Italy Declared War On | 0 | - | 4.70 | 46,126 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,460 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,202 |
| British Groups of Things | 0 | - | 4.26 | 83,027 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,117 |
| British Monopoly Board | 0 | - | 4.52 | 41,276 |
| Countries that Visit the UK the Most | 0 | - | 4.88 | 75,902 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,479 |
| Name the English Monarchs | 0 | - | 4.91 | 506,842 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,091 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,334 |
| England or Wales? | 0 | - | 4.94 | 45,985 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,253 |
| Asian Last Names in the United States | 0 | - | 4.43 | 46,975 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,416 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,784 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,839 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,855 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,483 |
| Name a Valid African Country | 0 | - | 4.98 | 155,110 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,732 |
| Countries that Beat Canada | 0 | - | 4.90 | 99,038 |
| 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 | 142,365 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,745 |
| Slavic Languages | 0 | - | 4.67 | 54,715 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,650 |
| Modern Day Countries of Austria-Hungary on a Map | 0 | - | 4.98 | 104,840 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,378 |
| Mediterranean Foods | 0 | - | 3.80 | 11,503 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,418 |
| Countries Settled by the Ancient Greeks | 0 | - | 4.54 | 49,655 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,861 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,747 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,589 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,217 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,325 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,223 |
| Roman Names for Places | 0 | - | 4.62 | 58,732 |
| 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 | 74,190 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,639 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,375 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,093 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,120 |
| Monty Python Quotes | 0 | - | 4.89 | 42,614 |
| James Bond Countries Visited Map | 0 | - | 4.99 | 64,803 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,073 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,457 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 407,269 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,506 |
| U.S. Baby Boy Names by Decade | 0 | - | 4.55 | 492,159 |
| U.S. Baby Girl Names by Decade | 0 | - | 4.42 | 716,152 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,433 |
| Last Names in U.S. History #1 | 0 | - | 4.25 | 36,348 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,893 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,882 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,167 |
| Word Chain - Germany | 0 | - | 4.31 | 22,688 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,941 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,589 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,796 |
| Famous Irish People | 0 | - | 4.05 | 46,072 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Word Chain - Italy | 0 | - | 4.07 | 23,225 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,412 |
| Seven Hills of Rome | 0 | - | 4.70 | 9,269 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,435 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,417 |
| Name a Valid English City | 0 | - | 4.19 | 16,832 |
| British Geography A-Z | 0 | - | 4.42 | 19,616 |
| Shakespearean Characters | 0 | - | 4.38 | 37,745 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,441 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,855 |
| Sherlock Holmes Quiz | 0 | - | 4.49 | 26,730 |
| London A-Z | 0 | - | 4.10 | 40,883 |
| Top 4 in English Football, 1888–2026 | 0 | - | 4.92 | 143,523 |
| Last Names by Country of Origin | 0 | - | 4.64 | 157,331 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,278 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,674 |
| European Geography By Letter - C | 0 | - | 4.44 | 124,137 |
| European Geography By Letter - D | 0 | - | 4.49 | 118,282 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,200 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,679 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,230 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,845 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,128 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,718 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,786 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,523 |
| Top 10 European Countries by English Proficiency | 0 | - | 4.74 | 66,004 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,562 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,754 |
| Capitals of French Regions | 0 | - | 4.45 | 16,185 |
| Regions of France | 0 | - | 4.70 | 122,185 |
| France Immigration by Country | 0 | - | 4.70 | 76,957 |
| Famous Germans | 0 | - | 4.50 | 55,812 |
| Capitals of German States | 0 | - | 4.74 | 29,076 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,553 |
| Germany True or False? | 0 | - | 4.61 | 49,033 |
| German History A-Z | 0 | - | 4.49 | 24,925 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,514 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,445 |
| 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 | 439,990 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,534 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,815 |
| 2026 La Liga Clubs | 0 | - | 4.33 | 70,489 |
| La Liga - Trofeo Pichichi | 0 | - | 4,57 | 7.324 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,416 |
