| Countries Italy Declared War On | 0 | - | 4.75 | 43,552 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,327 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,046 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 84,581 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,460 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,594 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,083 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,733 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,681 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,403 |
| Name the English Monarchs | 0 | - | 4.91 | 505,244 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 97,730 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,453 |
| The Vietnam War | 0 | - | 4.44 | 35,621 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,315 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,092 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,757 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,974 |
| Asia Map Quiz | 0 | - | 4.99 | 922,770 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,471 |
| The Trojan War | 0 | - | 4.83 | 39,928 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 650,498 |
| Name that Greek Letter | 0 | - | 4.93 | 324,617 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,642 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,456 |
| Roman Emperors | 0 | - | 4.95 | 120,843 |
| Prime Ministers of the UK | 0 | - | 4.95 | 441,247 |
| Hindu Countries | 0 | - | 4.87 | 50,436 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,214 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,660 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 116,670 |
| The Only European Country ... | 0 | - | 4.91 | 218,265 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,103 |
| History of Russia Quiz | 0 | - | 4.47 | 31,980 |
| History of Italy | 0 | - | 4.55 | 32,105 |
| Byzantine History | 0 | - | 4.91 | 28,983 |
| Byzantine Emperors | 0 | - | 4.92 | 14,487 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,774 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,373 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,036 |
| South and Central Asia Map Quiz | 0 | - | 4.94 | 99,663 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,116 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,066 |
| Biggest Trading Partners - China | 0 | - | 4.95 | 75,392 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,382 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,270 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,321 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,255 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,808 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,154 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,585 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 162,050 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,116 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 174,780 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,908 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,620 |
| Slavic Countries | 0 | - | 4.96 | 112,156 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,880 |
| Ancient Greek Words | 0 | - | 4.93 | 112,210 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,602 |
| Counties of England | 0 | - | 4.97 | 801,024 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 359,927 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,005 |
| East Asia Cities Map Quiz | 0 | - | 4.96 | 110,596 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 154,322 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 99,689 |
| 10 Easternmost Countries in Asia | 0 | - | 4.99 | 108,966 |
| Countries of Asia with Two or More Words | 0 | - | 4.96 | 127,546 |
| Asian Countries Ending in "IA" | 0 | - | 4.96 | 108,080 |
| Countries of the Middle East | 0 | - | 4.96 | 202,214 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,945 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,767 |
| Champions League Winners | 0 | - | 4.92 | 1,012,743 |
| The Iraq War | 0 | - | 4.47 | 15,689 |
| The American Revolution | 0 | - | 4.52 | 54,321 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,525 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,295 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,213 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,154 |
| Least Forested Countries in Asia | 0 | - | 4.75 | 64,861 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,258 |
| Monarchies of Europe | 0 | - | 4.90 | 98,601 |
| European Countries with One Border | 0 | - | 4.97 | 183,473 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,218 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,208 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,070 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 157,170 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,790 |
| Countries That Border Russia | 0 | - | 4.98 | 463,838 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,306 |
| History of Austria | 0 | - | 4.70 | 17,949 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,323 |
| Geography of the French Empire | 0 | - | 4.45 | 27,193 |
| The French Revolution | 0 | - | 4.47 | 24,108 |
| Countries Bordering France | 0 | - | 4.83 | 404,295 |
| History of France | 0 | - | 4.61 | 57,450 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,497 |
| States of Germany | 0 | - | 4.95 | 153,916 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,539 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,507 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,494 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,279 |
| Regions of Italy | 0 | - | 4.92 | 76,639 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,634 |
| The Vikings! | 0 | - | 4.46 | 28,388 |
| The Portuguese Empire | 0 | - | 4.58 | 12,094 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,969 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,582 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,353 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,434 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,094 |
| Geography of the British Empire | 0 | - | 4.48 | 39,811 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,645 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,803 |
| 10 Asian Countries with the Most Tourists | 0 | - | 4.89 | 106,580 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,855 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 136,981 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,623 |
| Monarchies of Asia | 0 | - | 4.97 | 71,369 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,164 |
| Prime Ministers of Australia | 0 | - | 4.51 | 32,132 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,797 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,580 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,528 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,209 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,034 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,140 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,350 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 263,534 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,543 |
| Russia Country Quiz | 0 | - | 4.83 | 115,117 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,604 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,502 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,870 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,493 |
| Departments of France | 0 | - | 4.93 | 54,830 |
| Germany Country Quiz | 0 | - | 4.83 | 158,545 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,871 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,165 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,999 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,301 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,000 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,858 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,694 |
| History of The Netherlands | 0 | - | 4.46 | 17,524 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,298 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,562 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,423 |
| Medieval English History | 0 | - | 4.53 | 43,616 |
| England or Wales? | 0 | - | 4.94 | 45,884 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,566 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,617 |
| Top 10 Richest Countries in Asia | 0 | - | 4.69 | 106,022 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,514 |
| Countries Closest to the Persian Gulf | 0 | - | 4.93 | 83,607 |
| Qatar Country Quiz | 0 | - | 4.86 | 31,650 |
| Jordan Country Quiz | 0 | - | 4.86 | 32,002 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,630 |
| Countries in Southeast Asia With an Empty Map | 0 | - | 4.97 | 101,889 |
| China Cities Map Quiz | 0 | - | 4.94 | 105,700 |
| Provinces of China Map Quiz | 0 | - | 4.92 | 94,268 |
| Japan Country Quiz | 0 | - | 4.93 | 143,065 |
| Countries Kim Jong Un Has Been To | 0 | - | 4.95 | 33,203 |
| States of India Map Quiz | 0 | - | 4.83 | 26,775 |
| Countries that Bordered British India with an Empty Map | 0 | - | 4.69 | 55,591 |
| Countries with the Most Ascents of Mount Everest | 0 | - | 4.95 | 58,479 |
| Nepal Country Quiz | 0 | - | 4.95 | 37,907 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,931 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,036 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,303 |
| Biggest Trading Partners – Australia | 0 | - | 4.93 | 61,856 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,717,989 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,551 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,280 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,699 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,617 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,287 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 116,221 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,765 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,110 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,550 |
| Countries that Border Poland | 0 | - | 4.99 | 172,915 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,117 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,365 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,206 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,872 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,983 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,963 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,895 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,004 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,824 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,062 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,375 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,562 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,062 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,013 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,413 |
| History of Germany | 0 | - | 4.39 | 52,939 |
| Mythology A-Z | 0 | - | 4.31 | 37,346 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,128 |
