| Federal Subjects of Russia | 0 | - | 4.95 | 149,628 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,295 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,239 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,825 |
| Slavic Countries | 0 | - | 4.96 | 112,418 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,475 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,673 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,428 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,630 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,856 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,904 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,626 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,504 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,766 |
| Russia Country Quiz | 0 | - | 4.83 | 115,350 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,204 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,353 |
| Countries That Border Russia | 0 | - | 4.98 | 464,618 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,776 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,604 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,050 |
| Geography of Russia | 0 | - | 4.57 | 21,607 |
| Name the English Monarchs | 0 | - | 4.91 | 506,817 |
| Russian Inventions | 0 | - | 4.39 | 13,020 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,032 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,062 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,041 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.87 | 61,704 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,908 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,937 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,337 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,263 |
| The Only European Country ... | 0 | - | 4.91 | 219,213 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,625 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,248 |
| Name that Greek Letter | 0 | - | 4.93 | 325,078 |
| The Trojan War | 0 | - | 4.83 | 40,006 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,021 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,616 |
| Roman Emperors | 0 | - | 4.95 | 121,280 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,434 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,111 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,128 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,221 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,630 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,136 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,954 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,829 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,898 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,033 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,834 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 127,645 |
| Counties of England | 0 | - | 4.97 | 803,328 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,967 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,926 |
| Ancient Greek Words | 0 | - | 4.93 | 112,531 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,025 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,880 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,585 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,666 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,514 |
| Monarchies of Europe | 0 | - | 4.90 | 98,920 |
| European Countries with One Border | 0 | - | 4.97 | 183,869 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,593 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,945 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,365 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,476 |
| Ukraine Country Quiz | 0 | - | 4.43 | 48,002 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,797 |
| Romania Country Quiz | 0 | - | 4.63 | 54,155 |
| History of Austria | 0 | - | 4.70 | 17,978 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,697 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,152 |
| History of France | 0 | - | 4.61 | 57,656 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,856 |
| States of Germany | 0 | - | 4.95 | 154,642 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,563 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,729 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.97 | 75,433 |
| Regions of Italy | 0 | - | 4.92 | 77,138 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,534 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,826 |
| The Vikings! | 0 | - | 4.46 | 28,409 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,407 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,794 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,559 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,468 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,292 |
| Geography of the British Empire | 0 | - | 4.48 | 39,852 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,843 |
| Champions League Winners | 0 | - | 4.92 | 1,016,682 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,955 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,848 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,002 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,013 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,022 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,826 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,948 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,953 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,859 |
| Departments of France | 0 | - | 4.93 | 55,231 |
| Countries Bordering France | 0 | - | 4.83 | 405,034 |
| Germany Country Quiz | 0 | - | 4.82 | 158,900 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,119 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,969 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,282 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,087 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,980 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,530 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,922 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,847 |
| England or Wales? | 0 | - | 4.94 | 45,984 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,247 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,582 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,662 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,724 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 122,707 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,706 |
| Lithuania Country Quiz | 0 | - | 4.63 | 31,807 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,219 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,249 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,053 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,982 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,964 |
| Countries Italy Declared War On | 0 | - | 4.70 | 45,970 |
| History of The Netherlands | 0 | - | 4.46 | 17,556 |
| Medieval English History | 0 | - | 4.53 | 43,662 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,401 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,835 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.75 | 12,346 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,371 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,760 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,980 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,139 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,930 |
| Countries that Border Poland | 0 | - | 4.99 | 173,218 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,975 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,884 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 31,081 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,876 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,473 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,123 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,105 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,967 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,166 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,506 |
| French History Multiple Choice | 0 | - | 4.55 | 33,249 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,783 |
| History of Germany | 0 | - | 4.39 | 52,981 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,347 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,858 |
| Counties of Ireland | 0 | - | 4.92 | 197,408 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,280 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,453 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,324 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,221 |
| Roman Names for Places | 0 | - | 4.62 | 58,728 |
| Byzantine History | 0 | - | 4.91 | 29,030 |
| Byzantine Emperors | 0 | - | 4.93 | 14,617 |
| History of Spain | 0 | - | 4.23 | 21,166 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,318 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,195 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,475 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,828 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,980 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,246 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,976 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,330 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,097 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,567 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,089 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,329 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 407,245 |
| Malta Country Quiz | 0 | - | 4.81 | 31,242 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,835 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,889 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,942 |
| Famous Russians | 0 | - | 4.16 | 23,917 |
| Word Chain - Russia | 0 | - | 4.33 | 15,798 |
| Russian History A-Z | 0 | - | 4.35 | 32,247 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,648 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,279 |
| French Inventions | 0 | - | 4.10 | 13,929 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,729 |
| History of Paris | 0 | - | 4.24 | 13,682 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,373 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,580 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,245 |
| Embarrassing Chapters in Italian History | 0 | - | 4.24 | 12,168 |
| Countries that Beat Italy | 0 | - | 4.85 | 55,214 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,187 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,908 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,372 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,117 |
