| Figures from Greek Mythology | 0 | - | 4.92 | 194,064 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 440,597 |
| Olympian Gods Quiz | 0 | - | 4.96 | 504,666 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 21,079 |
| Roman to Greek God | 0 | - | 4.52 | 123,541 |
| The Trojan War | 0 | - | 4.83 | 40,112 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,332 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 88,401 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 128,061 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 653,290 |
| Name that Greek Letter | 0 | - | 4.93 | 325,383 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,527 |
| Ancient Greek Words | 0 | - | 4.93 | 112,726 |
| Mythology A-Z | 0 | - | 4.31 | 37,466 |
| Word Chain - Greek and Roman Mythology | 0 | - | 4.50 | 57,166 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,628 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 86,214 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 66,077 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 72,068 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,774 |
| Modern Countries Conquered by Alexander the Great | 0 | - | 4.89 | 114,601 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,524 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,651 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,732,645 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 146,140 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 87,065 |
| Name the English Monarchs | 0 | - | 4.91 | 507,594 |
| Prime Ministers of the UK | 0 | - | 4.95 | 443,379 |
| Europe Map Quiz | 0 | - | 5.00 | 4,794,878 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,550 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,293 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,078 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,325 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,722 |
| Roman Emperors | 0 | - | 4.95 | 121,503 |
| Byzantine History | 0 | - | 4.91 | 29,063 |
| Byzantine Emperors | 0 | - | 4.93 | 14,670 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,461 |
| Lord of the Rings Characters | 0 | - | 4.54 | 113,752 |
| Category Elimination - U.S. States #1 | 0 | - | 4.88 | 222,860 |
| Category Elimination - U.S. States #2 | 0 | - | 4.82 | 135,919 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,678 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,530 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.74 | 58,838 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,652 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,906 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,335 |
| English First Names of the Middle Ages | 0 | - | 4.47 | 61,177 |
| Countries That Use the Euro | 0 | - | 4.95 | 107,350 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,262,302 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,337,661 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,581 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,837 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,584 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,401 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,942 |
| The Only European Country ... | 0 | - | 4.91 | 219,725 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 313,315 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,726 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,910 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,425 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,949 |
| Slavic Countries | 0 | - | 4.96 | 112,551 |
| History of Russia Quiz | 0 | - | 4.47 | 32,031 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,865 |
| History of Italy | 0 | - | 4.55 | 32,196 |
| The Dictator Files: Benito Mussolini | 0 | - | 4.65 | 23,596 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,862 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,480 |
| Arthurian Legend | 0 | - | 4.33 | 25,196 |
| Counties of England | 0 | - | 4.97 | 804,652 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,156 |
| Lord of the Rings Decoder | 0 | - | 4.61 | 42,842 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 362,981 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,250 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,211 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 194,120 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 128,021 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 97,029 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,788 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,947 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,703 |
| Monarchies of Europe | 0 | - | 4.90 | 99,076 |
| European Countries with One Border | 0 | - | 4.97 | 184,092 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,812 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,475 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,440 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 89,245 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,379 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 265,569 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 116,186 |
| Russia Country Quiz | 0 | - | 4.83 | 115,497 |
| Federal Subjects of Russia | 0 | - | 4.95 | 150,014 |
| Countries That Border Russia | 0 | - | 4.98 | 465,048 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,859 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,619 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,666 |
| Andorra Country Quiz | 0 | - | 4.91 | 32,007 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,862 |
| France Cities Map Quiz | 0 | - | 4.96 | 168,037 |
| Departments of France | 0 | - | 4.93 | 55,454 |
| Countries Bordering France | 0 | - | 4.83 | 405,471 |
| History of France | 0 | - | 4.61 | 57,761 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.51 | 39,033 |
| Germany Country Quiz | 0 | - | 4.82 | 159,134 |
| States of Germany Map Quiz | 0 | - | 4.92 | 134,042 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,297 |
| States of Germany | 0 | - | 4.95 | 155,022 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,851 |
| Countries Bordering Germany | 0 | - | 4.99 | 372,344 |
| The Life of Alexander the Great | 0 | - | 4.51 | 18,598 |
| Regions of Italy | 0 | - | 4.92 | 77,306 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,475 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,277 |
| Countries Italy Declared War On | 0 | - | 4.74 | 49,371 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,793 |
| Countries in the Byzantine Empire | 0 | - | 4.95 | 72,574 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,955 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,647 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,654 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 187,082 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 69,159 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,924 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,682 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 119,110 |
| Shakespeare's Plays Quiz | 0 | - | 4.37 | 390,646 |
| Shakespeare Quotes | 0 | - | 4.43 | 71,644 |
| Lord of the Rings Characters by Screen Time | 0 | - | 4.55 | 77,773 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,497 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,408 |
| Geography of the British Empire | 0 | - | 4.48 | 39,888 |
| Medieval English History | 0 | - | 4.53 | 43,699 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.42 | 52,050 |
| England or Wales? | 0 | - | 4.94 | 46,088 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,567 |
| Champions League Winners | 0 | - | 4.92 | 1,018,531 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 98,200 |
| 10 Plagues of Egypt | 0 | - | 4.41 | 53,940 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,752 |
| African Countries with the Most Christians | 0 | - | 4.94 | 76,252 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 62,129 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,594 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 192,071 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 511,201 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,416 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,847 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 66,088 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,327 |
| Countries that Border Poland | 0 | - | 4.99 | 173,394 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,373 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,792 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,418 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,129 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,100 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,082 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,246 |
| History of Austria | 0 | - | 4.70 | 17,992 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,318 |
| Countries Bordering Austria | 0 | - | 4.97 | 119,075 |
| Geography of the French Empire | 0 | - | 4.45 | 27,240 |
| The French Revolution | 0 | - | 4.47 | 24,173 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,251 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,594 |
| Countries that Beat France | 0 | - | 4.48 | 76,524 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,841 |
| French History Multiple Choice | 0 | - | 4.55 | 33,282 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,580 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 99,257 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,690 |
| History of Germany | 0 | - | 4.39 | 53,010 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,429 |
| Counties of Ireland | 0 | - | 4.92 | 197,764 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,396 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,769 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,412 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,281 |
| Roman Names for Places | 0 | - | 4.62 | 58,807 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.27 | 104,200 |
| History of The Netherlands | 0 | - | 4.46 | 17,580 |
| The Vikings! | 0 | - | 4.46 | 28,430 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,337 |
| The Portuguese Empire | 0 | - | 4.58 | 12,120 |
| Countries that Beat Portugal | 0 | - | 4.86 | 60,028 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,446 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,228 |
| British Geography Quiz #1 | 0 | - | 4.55 | 54,341 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,725 |
| Do You Even Know Anything About Shakespeare? | 0 | - | 4.56 | 34,535 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 47,105 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,836 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 32,008 |
| British History A-Z #1 | 0 | - | 4.45 | 47,358 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,258 |
| Houses of British Monarchs | 0 | - | 4.54 | 66,044 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,363 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,115 |
| British History Quiz for Dummies | 0 | - | 4.70 | 79,182 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,454 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,448 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,878 |
