| Federal Subjects of Russia | 0 | - | 4.95 | 148,000 |
| Russia Country Quiz | 0 | - | 4.83 | 114,696 |
| Countries That Border Russia | 0 | - | 4.98 | 462,827 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,982 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,194 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,749 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,424 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,102 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,320 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,138 |
| History of Russia Quiz | 0 | - | 4.47 | 31,949 |
| Europe Map Quiz | 0 | - | 5.00 | 4,771,146 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,583 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,075 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,130 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,468 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,414 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,050 |
| Name the English Monarchs | 0 | - | 4.91 | 503,938 |
| Countries that Border Poland | 0 | - | 4.99 | 172,608 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,423 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,925 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,882 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,664 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,878 |
| Name that Greek Letter | 0 | - | 4.93 | 324,165 |
| Modern Day Countries of the Dutch Empire on a Map | 0 | - | 4.86 | 61,298 |
| Countries of Iberia in History with a Map | 0 | - | 4.87 | 42,065 |
| Modern Day Countries of the Spanish Empire on a Map | 0 | - | 4.95 | 86,509 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,571 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,038 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,678 |
| The Only European Country ... | 0 | - | 4.91 | 217,394 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,581 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,059 |
| The Trojan War | 0 | - | 4.83 | 39,797 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,244 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,651 |
| Roman Emperors | 0 | - | 4.95 | 120,394 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,541 |
| 101 Figures from Greek Mythology | 0 | - | 4.99 | 126,505 |
| History of Italy | 0 | - | 4.55 | 32,053 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,719 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,295 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,957 |
| European Countries Ending in "IA" | 0 | - | 4.96 | 68,579 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,570 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,745 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,927 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,436 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,373 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,358 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,224 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,049 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,558 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,398 |
| Slavic Countries | 0 | - | 4.96 | 111,880 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,885 |
| Ancient Greek Words | 0 | - | 4.93 | 111,907 |
| Counties of England | 0 | - | 4.97 | 798,873 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,176 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,043 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,851 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,706 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,987 |
| Monarchies of Europe | 0 | - | 4.90 | 98,353 |
| European Countries with One Border | 0 | - | 4.97 | 183,121 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,896 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 86,454 |
| Russian History A-Z | 0 | - | 4.35 | 31,862 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,094 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,842 |
| French Inventions | 0 | - | 4.10 | 13,909 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,165 |
| States of Germany | 0 | - | 4.95 | 153,189 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,284 |
| States of the Holy Roman Empire in 1356 | 0 | - | 4.98 | 74,593 |
| Regions of Italy | 0 | - | 4.92 | 76,234 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,009 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,277 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,427 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,410 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,415 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,154 |
| Champions League Winners | 0 | - | 4.92 | 1,009,874 |
| Albania Country Quiz | 0 | - | 4.54 | 39,080 |
| Geography of Russia | 0 | - | 4.57 | 21,555 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,286 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,800 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,548 |
| Romania Country Quiz | 0 | - | 4.63 | 53,904 |
| Serbia Country Quiz | 0 | - | 4.44 | 35,091 |
| History of Austria | 0 | - | 4.70 | 17,905 |
| Geography of the French Empire | 0 | - | 4.45 | 27,155 |
| The French Revolution | 0 | - | 4.47 | 24,064 |
| Countries Bordering France | 0 | - | 4.83 | 403,554 |
| History of France | 0 | - | 4.59 | 57,272 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,684 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| The Portuguese Empire | 0 | - | 4.58 | 12,082 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,405 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,668 |
| Geography of the British Empire | 0 | - | 4.48 | 39,734 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,754 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,086 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,351 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,258 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,916 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,379 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,627 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,038 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,033 |
| Lithuania Country Quiz | 0 | - | 4.61 | 31,680 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,087 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,777 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,159 |
| Departments of France | 0 | - | 4.93 | 54,463 |
| Germany Country Quiz | 0 | - | 4.83 | 158,178 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,627 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,074 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,947 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,839 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,717 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,659 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,554 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,418 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,614 |
| History of The Netherlands | 0 | - | 4.46 | 17,484 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,118 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,208 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,980 |
| Medieval English History | 0 | - | 4.53 | 43,571 |
| England or Wales? | 0 | - | 4.94 | 45,797 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,997 |
| Chinese Inventions | 0 | - | 4.30 | 33,823 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,708,360 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,071 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,268 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,573 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,186 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,674 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,516 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,604 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,635 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,371 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,410 |
| Slovenia Country Quiz | 0 | - | 4.55 | 30,786 |
| Poland Country Quiz | 0 | - | 4.20 | 63,420 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,495 |
| Slovakia Country Quiz | 0 | - | 4.64 | 30,759 |
| Bulgaria Country Quiz | 0 | - | 4.55 | 30,953 |
| Montenegro Country Quiz | 0 | - | 4.61 | 23,767 |
| Belarus Country Quiz | 0 | - | 4.74 | 27,392 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,853 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,663 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,965 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,284 |
| French History Multiple Choice | 0 | - | 4.55 | 33,127 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,507 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,365 |
| History of Germany | 0 | - | 4.39 | 52,898 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,894 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,711 |
| Counties of Ireland | 0 | - | 4.92 | 196,054 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,020 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,355 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,791 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,992 |
| Roman Names for Places | 0 | - | 4.62 | 58,397 |
| Byzantine History | 0 | - | 4.91 | 28,918 |
| Byzantine Emperors | 0 | - | 4.92 | 14,362 |
| History of Spain | 0 | - | 4.23 | 21,116 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,219 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,361 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,269 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,781 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,844 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,187 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,769 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,208 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,002 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,063 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,798 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,007 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,749 |
| Malta Country Quiz | 0 | - | 4.81 | 31,115 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,594 |
| Colonies of Africa with a Map | 0 | - | 4.78 | 54,546 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,398 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,348 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 214,579 |
| Famous Russians | 0 | - | 4.16 | 23,865 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,325 |
| Estonia Country Quiz | 0 | - | 4.60 | 31,136 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,361 |
| History of Paris | 0 | - | 4.24 | 13,660 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,737 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,202 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,177 |
| Ancient Greek Inventions | 0 | - | 4.18 | 16,371 |
