| Countries Italy Declared War On | 0 | - | 4.75 | 43,237 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,864 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,852 |
| Countries of Europe in 1848 | 0 | - | 4.99 | 76,095 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 64,250 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 70,682 |
| The Reign of Napoleon | 0 | - | 4.54 | 38,895 |
| Europe Map Quiz | 0 | - | 5.00 | 4,754,548 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 106,582 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,381 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,985 |
| Name the English Monarchs | 0 | - | 4.91 | 501,324 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 96,971 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 128,851 |
| The Vietnam War | 0 | - | 4.44 | 35,475 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 427,416 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,733 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,446,332 |
| Asia Map Quiz | 0 | - | 4.99 | 914,180 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,150 |
| Hindu Countries | 0 | - | 4.86 | 49,988 |
| The Trojan War | 0 | - | 4.83 | 39,639 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 645,936 |
| Name that Greek Letter | 0 | - | 4.93 | 323,041 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,502 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,400 |
| Roman Emperors | 0 | - | 4.95 | 119,629 |
| Prime Ministers of the UK | 0 | - | 4.95 | 437,671 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,819 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,470 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,886 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,774 |
| The Only European Country ... | 0 | - | 4.91 | 215,908 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,719 |
| History of Russia Quiz | 0 | - | 4.49 | 31,878 |
| History of Italy | 0 | - | 4.55 | 31,933 |
| Byzantine History | 0 | - | 4.91 | 28,750 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,608 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,156 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,783 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 98,589 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,380,658 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,580 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,024 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,446 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,325,868 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,396 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,940 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 218,097 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,957 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 161,219 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,908 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 170,470 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,969 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,693 |
| Slavic Countries | 0 | - | 4.96 | 111,460 |
| Olympian Gods Quiz | 0 | - | 4.96 | 499,446 |
| Ancient Greek Words | 0 | - | 4.93 | 111,313 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,099 |
| Counties of England | 0 | - | 4.97 | 794,543 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 354,063 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,209 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,058 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 153,495 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 98,948 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 107,783 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 126,621 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 107,240 |
| Countries of the Middle East | 0 | - | 4.96 | 200,684 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 436,009 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,592 |
| Champions League Winners | 0 | - | 4.92 | 1,003,497 |
| The Iraq War | 0 | - | 4.47 | 15,633 |
| The American Revolution | 0 | - | 4.52 | 54,208 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,647 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,212 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,876 |
| Least Forested Countries in Asia | 0 | - | 4.74 | 64,637 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,472 |
| Monarchies of Europe | 0 | - | 4.90 | 97,926 |
| European Countries with One Border | 0 | - | 4.97 | 182,471 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,281 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 77,884 |
| Countries of Europe After World War II | 0 | - | 4.99 | 187,999 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 156,212 |
| Federal Subjects of Russia | 0 | - | 4.95 | 146,254 |
| Countries That Border Russia | 0 | - | 4.98 | 461,020 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,701 |
| History of Austria | 0 | - | 4.70 | 17,831 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,093 |
| Geography of the French Empire | 0 | - | 4.45 | 27,019 |
| The French Revolution | 0 | - | 4.46 | 23,897 |
| Countries Bordering France | 0 | - | 4.83 | 401,796 |
| History of France | 0 | - | 4.59 | 56,804 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,513 |
| States of Germany | 0 | - | 4.96 | 151,790 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,460 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,857 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,213 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,531 |
| Regions of Italy | 0 | - | 4.92 | 75,515 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 51,785 |
| The Vikings! | 0 | - | 4.46 | 28,317 |
| The Portuguese Empire | 0 | - | 4.58 | 12,045 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,598 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,974 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,522 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,303 |
| Countries the UK Declared War On | 0 | - | 4.61 | 122,280 |
| Geography of the British Empire | 0 | - | 4.48 | 39,627 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,593 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,656 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 105,745 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,012 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 135,236 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,985 |
| Monarchies of Asia | 0 | - | 4.97 | 70,959 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,761 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 32,685 |
| States of India Map Quiz | 0 | - | 4.83 | 26,346 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,383 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,104 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,643 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,400 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,244 |
| Prime Ministers of Australia | 0 | - | 4.50 | 31,844 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,412 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,849 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,754 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,804 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,514 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,236 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,605 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 259,815 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,296 |
| Russia Country Quiz | 0 | - | 4.85 | 114,244 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,220 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,281 |
| France Cities Map Quiz | 0 | - | 4.96 | 166,401 |
| Departments of France | 0 | - | 4.93 | 53,730 |
| Germany Country Quiz | 0 | - | 4.82 | 157,530 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,846 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,931 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,874 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,372 |
| Italy Country Quiz | 0 | - | 4.82 | 123,157 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,073 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,791 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,512 |
| History of The Netherlands | 0 | - | 4.46 | 17,403 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,640 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,337 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,186 |
| Medieval English History | 0 | - | 4.53 | 43,452 |
| England or Wales? | 0 | - | 4.94 | 45,589 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,687 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,804 |
| Top 10 Richest Countries in Asia | 0 | - | 4.73 | 105,476 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,724 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,272 |
| Syria Country Quiz | 0 | - | 4.81 | 32,660 |
| Jordan Country Quiz | 0 | - | 4.86 | 31,660 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,911 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,284 |
| China Cities Map Quiz | 0 | - | 4.93 | 104,878 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 93,372 |
| Japan Country Quiz | 0 | - | 4.93 | 142,185 |
| Closest Countries to North Korea | 0 | - | 4.94 | 122,242 |
| Biggest Mongol Empire Countries | 0 | - | 4.89 | 81,134 |
| Countries Closest to Taiwan | 0 | - | 4.81 | 93,165 |
| Bhutan Country Quiz | 0 | - | 4.87 | 24,173 |
| Countries Bordering India | 0 | - | 4.98 | 163,307 |
| Countries Closest to India | 0 | - | 4.97 | 102,609 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,978 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,397 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,687,076 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 190,475 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,181 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,031 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,640 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,268 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,324 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,321 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,332 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,650 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,145 |
| Countries that Border Poland | 0 | - | 4.99 | 172,024 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,704 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,436 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 100,134 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,076 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,790 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,728 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,230 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,704 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,610 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,169 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,778 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,078 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,034 |
