| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,106 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,491 |
| Figures from Greek Mythology | 0 | - | 4.91 | 189,046 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,423 |
| Byzantine History | 0 | - | 4.91 | 29,033 |
| Byzantine Emperors | 0 | - | 4.93 | 14,635 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,477 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,778 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,914 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,947 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,667 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,920 |
| States of Germany | 0 | - | 4.95 | 154,736 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,753 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,055 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,508 |
| Germany Country Quiz | 0 | - | 4.82 | 158,956 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,155 |
| Name the English Monarchs | 0 | - | 4.91 | 507,023 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,126 |
| Europe Map Quiz | 0 | - | 5.00 | 4,790,983 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,904 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,603 |
| The Trojan War | 0 | - | 4.83 | 40,024 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,465 |
| Name that Greek Letter | 0 | - | 4.93 | 325,140 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,084 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,993 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,239 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,645 |
| Roman Emperors | 0 | - | 4.95 | 121,335 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,743 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,396 |
| Countries of Iberia in History with a Map | 0 | - | 4.88 | 42,462 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,953 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,173 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,780 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,012 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,567 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,119 |
| Ancient Greek Words | 0 | - | 4.93 | 112,574 |
| Roman to Greek God | 0 | - | 4.52 | 123,400 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,726 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,325 |
| Ultimate Harry Potter Name Game | 0 | - | 4.94 | 494,832 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,054 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,961 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,434 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,604 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,357 |
| The Only European Country ... | 0 | - | 4.91 | 219,351 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,711 |
| History of Russia Quiz | 0 | - | 4.47 | 32,011 |
| History of Germany | 0 | - | 4.39 | 52,990 |
| History of Italy | 0 | - | 4.55 | 32,166 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,563 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,836 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,451 |
| Counties of England | 0 | - | 4.97 | 803,662 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,120 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,222 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 69,136 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,054 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,688 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,361 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,926 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,067 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,648 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,862 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,726 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,988 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,211 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,561 |
| Monarchies of Europe | 0 | - | 4.90 | 98,970 |
| European Countries with One Border | 0 | - | 4.97 | 183,935 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,651 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,001 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,289 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,848 |
| Slavic Countries | 0 | - | 4.96 | 112,453 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,747 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,531 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,744 |
| History of France | 0 | - | 4.61 | 57,679 |
| Most Popular Baby Boy Names in Germany | 0 | - | 4.34 | 67,277 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,643 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,955 |
| Countries of the German Empire | 0 | - | 4.51 | 38,280 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,173 |
| Regions of Italy | 0 | - | 4.92 | 77,188 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,858 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,463 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,840 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,579 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,605 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,808 |
| Lord of the Rings Characters | 0 | - | 4.54 | 113,694 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,480 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,324 |
| Geography of the British Empire | 0 | - | 4.48 | 39,862 |
| Champions League Winners | 0 | - | 4.92 | 1,017,159 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,503 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,728,718 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,891 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,000 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,887 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,385 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,784 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,002 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,122 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,138 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,107 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,188 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,027 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,020 |
| Countries that Border Poland | 0 | - | 4.99 | 173,272 |
| Russia Country Quiz | 0 | - | 4.83 | 115,385 |
| Countries That Border Russia | 0 | - | 4.98 | 464,708 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,318 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,076 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,799 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,054 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,612 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,156 |
| History of Austria | 0 | - | 4.70 | 17,983 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,114 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,971 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,995 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,908 |
| Departments of France | 0 | - | 4.93 | 55,283 |
| Geography of the French Empire | 0 | - | 4.45 | 27,224 |
| The French Revolution | 0 | - | 4.47 | 24,155 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,196 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,532 |
| Countries that Beat France | 0 | - | 4.48 | 76,440 |
| Countries Bordering France | 0 | - | 4.83 | 405,152 |
| French History Multiple Choice | 0 | - | 4.55 | 33,254 |
| German History A-Z | 0 | - | 4.49 | 24,929 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,262 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,060 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,387 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,876 |
| Counties of Ireland | 0 | - | 4.92 | 197,512 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,333 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,141 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,318 |
| Countries Italy Declared War On | 0 | - | 4.74 | 47,309 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,532 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,757 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,341 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,242 |
| Roman Names for Places | 0 | - | 4.62 | 58,751 |
| The Vikings! | 0 | - | 4.46 | 28,418 |
| The Portuguese Empire | 0 | - | 4.58 | 12,116 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,551 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,964 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,263 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,936 |
| British Geography Quiz #1 | 0 | - | 4.55 | 54,291 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,537 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 390,352 |
| Basic Harry Potter Quiz | 0 | - | 4.56 | 379,770 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,083 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,991 |
| People Buried at Westminster Abbey | 0 | - | 4.67 | 14,336 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,991 |
| Medieval English History | 0 | - | 4.53 | 43,671 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,342 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,100 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,804 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,107 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,356 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,848 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 407,557 |
| England or Wales? | 0 | - | 4.94 | 45,996 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,328 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,634 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,586 |
| Name a Valid U.S. State #1 | 0 | - | 4.93 | 210,701 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,353 |
| Russian History A-Z | 0 | - | 4.35 | 32,265 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,692 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,860 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,074 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,046 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,750 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,190 |
| Germany A-Z | 0 | - | 4.56 | 62,883 |
| 15 Most Populous Countries that Speak a Germanic Language | 0 | - | 4.40 | 82,809 |
| Biggest Trading Partners - Germany | 0 | - | 4.97 | 72,073 |
| Which City in Germany? | 0 | - | 4.50 | 137,468 |
| Holy Roman Empire Countries | 0 | - | 4.77 | 54,929 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,251 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,811 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,583 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,734 |
| History of The Netherlands | 0 | - | 4.46 | 17,564 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,225 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,268 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,938 |
