| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.57 | 14,654 |
| Name the English Monarchs | 0 | - | 4.91 | 506,848 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,840 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,234 |
| Countries in World War I | 0 | - | 4.88 | 229,259 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,475 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,942 |
| Neutral European Countries of WWII | 0 | - | 4.92 | 162,408 |
| Monarchies of Europe | 0 | - | 4.90 | 98,927 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,431 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 85,649 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,863 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 71,905 |
| Ancient Greek Words | 0 | - | 4.93 | 112,538 |
| Countries Italy Declared War On | 0 | - | 4.70 | 46,156 |
| Battle to Country | 0 | - | 4.91 | 54,014 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,960 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,851 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 236,012 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 169,028 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,535 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,831 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,144 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,982 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,449 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,167 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 652,274 |
| Name that Greek Letter | 0 | - | 4.93 | 325,082 |
| The Life of Winston Churchill | 0 | - | 4.16 | 11,876 |
| Countries in World War II | 0 | - | 4.53 | 919,337 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,075 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,767 |
| The Trojan War | 0 | - | 4.83 | 40,008 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 113,029 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,618 |
| Roman Emperors | 0 | - | 4.95 | 121,280 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,347 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 108,855 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,984 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,978 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,798 |
| Important Cities in WWII | 0 | - | 4.42 | 93,952 |
| The American Civil War | 0 | - | 4.62 | 52,640 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,946 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,217 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,275 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,273 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,641 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,140 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,968 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,833 |
| The Only European Country ... | 0 | - | 4.91 | 219,229 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,901 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 176,060 |
| European Countries NOT in NATO | 0 | - | 4.91 | 62,629 |
| Countries of Europe After World War II | 0 | - | 4.99 | 189,508 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,242 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,826 |
| Slavic Countries | 0 | - | 4.96 | 112,421 |
| History of Russia Quiz | 0 | - | 4.47 | 32,009 |
| The Dictator Files: Vladimir Lenin | 0 | - | 4.46 | 26,943 |
| Famous Ancient Romans | 0 | - | 4.70 | 85,796 |
| Mythology A-Z | 0 | - | 4.31 | 37,411 |
| History of Italy | 0 | - | 4.55 | 32,160 |
| Roman History Vocabulary | 0 | - | 4.41 | 57,728 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,993 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,830 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,435 |
| Counties of England | 0 | - | 4.97 | 803,377 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,111 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,826 |
| British History A-Z #1 | 0 | - | 4.45 | 47,281 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,994 |
| The Iraq War | 0 | - | 4.47 | 15,707 |
| Countries of the Japanese Empire | 0 | - | 4.97 | 104,634 |
| Communist Countries in History | 0 | - | 4.63 | 498,404 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 99,030 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,884 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,592 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,670 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,809 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,207 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,520 |
| European Countries with One Border | 0 | - | 4.97 | 183,873 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,599 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,951 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,639 |
| Countries That Border Russia | 0 | - | 4.98 | 464,633 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,504 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,702 |
| Countries Bordering France | 0 | - | 4.83 | 405,052 |
| Kings of France Quiz | 0 | - | 4.21 | 32,937 |
| History of France | 0 | - | 4.61 | 57,656 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,859 |
| States of Germany | 0 | - | 4.95 | 154,662 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,731 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,633 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,976 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.97 | 145,892 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,971 |
| Regions of Italy | 0 | - | 4.92 | 77,145 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,828 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,413 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,797 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,416 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,562 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,471 |
| English Royal Consorts | 0 | - | 4.38 | 37,539 |
| Countries the UK Declared War On | 0 | - | 4.55 | 123,296 |
| Geography of the British Empire | 0 | - | 4.48 | 39,852 |
| Champions League Winners | 0 | - | 4.92 | 1,016,729 |
| Monarchies of Asia | 0 | - | 4.97 | 71,535 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,313 |
| The Vietnam War | 0 | - | 4.44 | 35,663 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,408 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,882 |
| U.S. Five-Star Generals and Admirals | 0 | - | 4.33 | 8,362 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,122 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,727,510 |
| Canadian Prime Ministers | 0 | - | 4.64 | 57,951 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,373 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,762 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,304 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,811 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,984 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,347 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 279,019 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,841 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,955 |
| Countries that Border Poland | 0 | - | 4.99 | 173,227 |
| Russia Country Quiz | 0 | - | 4.83 | 115,360 |
| Russia A-Z | 0 | - | 4.46 | 27,318 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,298 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,777 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,034 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 35,605 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,127 |
| History of Austria | 0 | - | 4.70 | 17,978 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,106 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,954 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,969 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,864 |
| Departments of France | 0 | - | 4.93 | 55,238 |
| Geography of the French Empire | 0 | - | 4.45 | 27,221 |
| The French Revolution | 0 | - | 4.47 | 24,153 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,177 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,508 |
| Germany Country Quiz | 0 | - | 4.82 | 158,906 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,124 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,564 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,792 |
| German History A-Z | 0 | - | 4.49 | 24,925 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,250 |
| Geography of Ancient Greece | 0 | - | 4.69 | 32,053 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 74,350 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,862 |
| Counties of Ireland | 0 | - | 4.92 | 197,412 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,284 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,091 |
| Italian History A-Z | 0 | - | 4.16 | 17,942 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,286 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,461 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,753 |
| Ancient Roman Trivia #2 | 0 | - | 4.61 | 44,325 |
| Geography of the Roman Empire | 0 | - | 4.55 | 52,223 |
| Roman History by Picture | 0 | - | 4.46 | 26,600 |
| Roman Names for Places | 0 | - | 4.62 | 58,732 |
| Byzantine History | 0 | - | 4.91 | 29,030 |
| Byzantine Emperors | 0 | - | 4.93 | 14,617 |
| History of The Netherlands | 0 | - | 4.46 | 17,558 |
| The Vikings! | 0 | - | 4.46 | 28,412 |
| The Portuguese Empire | 0 | - | 4.58 | 12,113 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,534 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,928 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,319 |
| Spanish History A-Z | 0 | - | 4.37 | 19,515 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,205 |
| British Acronyms | 0 | - | 4.40 | 45,949 |
| British Monopoly Board | 0 | - | 4.52 | 41,276 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 118,856 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,479 |
| Medieval English History | 0 | - | 4.53 | 43,662 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,331 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 38,098 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 36,005 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,091 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,334 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,844 |
| England or Wales? | 0 | - | 4.94 | 45,985 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,254 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,780 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,465 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,416 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,784 |
| The Persian Gulf War | 0 | - | 4.02 | 8,487 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,585 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 77,065 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,389 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,483 |
| Countries that Have Won the Most Battles | 0 | - | 4.01 | 39,793 |
