| Countries of the Japanese Empire | 0 | - | 4.97 | 97,715 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 396,381 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,090 |
| Countries of Europe After World War II | 0 | - | 4.98 | 169,142 |
| Countries of Europe Before World War I | 0 | - | 4.99 | 137,875 |
| Countries of the Soviet Union | 0 | - | 4.98 | 183,489 |
| Figures from Greek Mythology | 0 | - | 4.92 | 168,434 |
| Byzantine History | 0 | - | 4.87 | 26,082 |
| Neutral European Countries of WWII | 0 | - | 4.91 | 130,064 |
| Countries Italy Declared War On | 0 | - | 4.79 | 39,658 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,044 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 132,495 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.97 | 57,765 |
| Soviet Leaders 1917–1991 | 0 | - | 4.42 | 86,740 |
| States of Germany Map Quiz | 0 | - | 4.91 | 119,464 |
| States of Germany | 0 | - | 4.94 | 121,648 |
| Germany Immigration by Country | 0 | - | 4.90 | 68,912 |
| Countries Bordering Germany | 0 | - | 4.99 | 338,700 |
| English Monarchs Quiz | 0 | - | 4.91 | 443,052 |
| The Life of Winston Churchill | 0 | - | 4.10 | 11,302 |
| Soviet Union Country Quiz | 0 | - | 4.90 | 73,913 |
| The Reign of Napoleon | 0 | - | 4.53 | 35,922 |
| Germany Country Quiz | 0 | - | 4.83 | 138,901 |
| Countries Closest to Germany A-Z | 0 | - | 4.96 | 8,085 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.82 | 9,636 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,288 |
| Roman Emperors | 0 | - | 4.95 | 94,773 |
| Places Where Winston Churchill Said We Would Fight the Nazis | 0 | - | 4.55 | 13,747 |
| Prime Ministers of the UK | 0 | - | 4.95 | 377,671 |
| Europe Map Quiz | 0 | - | 5.00 | 4,255,526 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 75,749 |
| Countries that Beat Germany | 0 | - | 4.87 | 69,517 |
| Countries With the Most German Speakers | 0 | - | 4.88 | 51,279 |
| Modern Day Countries of Nazi Germany on a Map | 0 | - | 4.96 | 124,805 |
| The Trojan War | 0 | - | 4.81 | 35,653 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 579,734 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 98,867 |
| Ultimate Harry Potter Name Game | 0 | - | 4.95 | 461,759 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 381,980 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,463 |
| Arms Exports - Russia | 0 | - | 4.47 | 23,221 |
| Olympian Gods Quiz | 0 | - | 4.96 | 455,094 |
| Name that Greek Letter | 0 | - | 4.94 | 294,181 |
| Ancient Greek Words | 0 | - | 4.90 | 96,253 |
| Roman to Greek God | 0 | - | 4.52 | 112,790 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,118 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 64,943 |
| Counties of England | 0 | - | 4.96 | 683,146 |
| Invasions of Great Britain | 0 | - | 4.48 | 55,151 |
| Shakespeare's Plays Quiz | 0 | - | 4.41 | 345,794 |
| Groups of Things - Harry Potter | 0 | - | 4.85 | 258,820 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.79 | 26,321 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,515 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,032,549 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 333,879 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,171,080 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,872 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.82 | 38,908 |
| The Only European Country ... | 0 | - | 4.94 | 176,017 |
| Germany A-Z | 0 | - | 4.70 | 49,466 |
| History of Germany Quiz | 0 | - | 4.35 | 39,966 |
| Regions of Spain Quiz | 0 | - | 4.85 | 93,541 |
| Cantons of Switzerland | 0 | - | 4.96 | 39,767 |
| Parts of the United Kingdom | 0 | - | 4.88 | 82,967 |
| Lord of the Rings Decoder | 0 | - | 4.58 | 38,877 |
| Lord of the Rings Characters | 0 | - | 4.54 | 104,984 |
| Wives of King Henry VIII | 0 | - | 4.53 | 44,508 |
| Countries the UK Declared War On | 0 | - | 4.57 | 110,975 |
| Geography of the British Empire | 0 | - | 4.50 | 34,353 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 263,809 |
| Champions League Winners | 0 | - | 4.90 | 838,757 |
| The Vietnam War | 0 | - | 4.41 | 32,555 |
| The American Revolution | 0 | - | 4.55 | 51,466 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 159,558 |
| 10 Westernmost Countries in Europe | 0 | - | 4.95 | 137,425 |
| European Diaspora - Top 11 Countries | 0 | - | 4.91 | 82,777 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.94 | 183,459 |
| 10 European Countries with the Most Tourists | 0 | - | 4.97 | 119,516 |
| European Landmarks Map Quiz | 0 | - | 4.98 | 76,250 |
| Three Band Flags of Europe | 0 | - | 4.97 | 159,548 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 283,155 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 113,491 |
| Pixelated Europe Map | 0 | - | 4.89 | 108,503 |
| Monarchies of Europe | 0 | - | 4.88 | 86,247 |
| European Countries with One Border | 0 | - | 4.96 | 149,131 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 143,374 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 73,756 |
| Eastern Europe Map Quiz | 0 | - | 4.88 | 114,731 |
| Slavic Countries | 0 | - | 4.96 | 99,792 |
| Federal Subjects of Russia | 0 | - | 4.95 | 110,246 |
| Countries Formerly in Yugoslavia | 0 | - | 4.94 | 100,958 |
| Regions of France Map Quiz | 0 | - | 4.96 | 126,347 |
| History of France Quiz | 0 | - | 4.55 | 39,482 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 21,918 |
| Countries of the German Empire | 0 | - | 4.50 | 33,284 |
| Things with Names from Classical Mythology | 0 | - | 4.28 | 81,755 |
| Counties of Ireland | 0 | - | 4.89 | 157,302 |
| Regions of Italy | 0 | - | 4.88 | 59,550 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,390 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,205 |
| Geography of the Roman Empire | 0 | - | 4.58 | 48,160 |
| Roman Names for Places | 0 | - | 4.66 | 41,081 |
| Count in Roman Numerals - 30 Second Sprint | 0 | - | 4.25 | 70,578 |
| The Vikings! | 0 | - | 4.44 | 27,015 |
| The Portuguese Empire | 0 | - | 4.54 | 11,290 |
| Spain Cities Map Quiz | 0 | - | 4.86 | 85,327 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 168,051 |
| Geography of the Spanish Empire | 0 | - | 4.47 | 34,988 |
| Countries Closest to Spain | 0 | - | 4.95 | 204,407 |
| Arthurian Legend | 0 | - | 4.35 | 24,220 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 98,387 |
| Counties of the UK and Ireland | 0 | - | 4.97 | 102,130 |
| Basic Harry Potter Quiz | 0 | - | 4.55 | 359,940 |
| Houses of British Monarchs | 0 | - | 4.50 | 51,724 |
| Medieval English History | 0 | - | 4.52 | 40,579 |
| British History Multiple Choice #1 | 0 | - | 4.47 | 51,267 |
| World Capitals Closest to London | 0 | - | 4.90 | 92,934 |
| 50 Busiest Air Routes from London | 0 | - | 4.88 | 84,831 |
| 2025 Football League Teams | 0 | - | 4.93 | 341,089 |
| England or Wales? | 0 | - | 4.93 | 39,842 |
| All Champions League Teams Ever | 0 | - | 4.89 | 102,475 |
| Asian Countries with the Most Christians | 0 | - | 4.86 | 83,587 |
| Top 10 Richest Countries in Asia | 0 | - | 4.86 | 72,405 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 100,651 |
| The Iraq War | 0 | - | 4.43 | 14,266 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 92,391 |
| African Countries with the Most Christians | 0 | - | 4.92 | 66,661 |
| Top 10 Richest Countries in Africa | 0 | - | 4.87 | 66,885 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 108,632 |
| Deadliest U.S. Wars | 0 | - | 4.82 | 156,849 |
| Canadian Prime Ministers Quiz | 0 | - | 4.56 | 45,729 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 179,988 |
| Top 10 Hottest European Countries | 0 | - | 4.87 | 114,807 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 65,762 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 127,493 |
| Top 10 Richest Countries in Europe | 0 | - | 4.88 | 133,604 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 176,627 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.93 | 55,542 |
| Biggest Trading Partners - European Union | 0 | - | 4.90 | 64,138 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 198,232 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 243,954 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 141,104 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 186,611 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 83,384 |
| Countries that Border Poland | 0 | - | 4.99 | 157,663 |
| Russia Country Quiz | 0 | - | 4.84 | 102,344 |
| History of Russia Quiz | 0 | - | 4.48 | 29,736 |
| Countries That Border Russia | 0 | - | 4.98 | 423,349 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.94 | 75,470 |
| Countries With the Most Russian Speakers | 0 | - | 4.94 | 55,379 |
| The Dictator Files: Joseph Stalin | 0 | - | 4.33 | 39,224 |
| Countries that Border Hungary | 0 | - | 4.98 | 95,770 |
| Countries Bordering Serbia | 0 | - | 4.95 | 82,373 |
| History of Austria | 0 | - | 4.68 | 16,285 |
| Countries Bordering Austria | 0 | - | 4.97 | 109,479 |
| France Cities Map Quiz | 0 | - | 4.95 | 146,835 |
| Geography of the French Empire | 0 | - | 4.49 | 25,157 |
| The French Revolution | 0 | - | 4.44 | 21,806 |
| Countries that Visit France the Most | 0 | - | 4.84 | 39,538 |
| Countries Closest to Metropolitan France | 0 | - | 4.87 | 65,911 |
| Countries Bordering France | 0 | - | 4.87 | 354,928 |
| Most Popular Baby Girls Names in Germany | 0 | - | 4.48 | 35,694 |
| Germany Cities Map Quiz | 0 | - | 4.84 | 105,088 |
| Famous Germans by Picture | 0 | - | 4.07 | 15,476 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,118 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.80 | 84,042 |
| Mythology A-Z | 0 | - | 4.28 | 33,755 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.58 | 55,013 |
| Ancient Greece - Multiple Choice | 0 | - | 4.53 | 38,401 |
| History of Ireland Quiz | 0 | - | 4.43 | 18,778 |
| Italy Country Quiz | 0 | - | 4.81 | 107,615 |
| Regions of Italy Map Quiz | 0 | - | 4.95 | 132,285 |
| Italy Cities Map Quiz | 0 | - | 4.96 | 126,203 |
| History of Italy | 0 | - | 4.49 | 29,649 |
| Countries of the Italian Empire | 0 | - | 4.21 | 25,227 |
| Countries Bordering Italy | 0 | - | 4.92 | 78,529 |
| Countries Closest to Italy | 0 | - | 4.97 | 177,608 |
| Roman History Vocabulary | 0 | - | 4.43 | 54,870 |
| The Life of Julius Caesar | 0 | - | 4.46 | 31,978 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,324 |
| History of The Netherlands | 0 | - | 4.42 | 15,638 |
| Greenland Country Quiz | 0 | - | 4.82 | 32,050 |
| Countries Closest to Iceland | 0 | - | 4.87 | 62,091 |
| Biggest Trading Partners - Spain | 0 | - | 4.93 | 49,979 |
| Countries that Beat Spain | 0 | - | 4.96 | 55,407 |
| Switzerland Immigration by Country | 0 | - | 4.81 | 19,834 |
| Members of the British Royal Family | 0 | - | 4.11 | 108,930 |
| The United States... or the United Kingdom? | 0 | - | 4.89 | 89,521 |
| Biggest Trading Partners - UK | 0 | - | 4.86 | 56,331 |
| Shakespeare Quotes Quiz | 0 | - | 4.40 | 62,023 |
| Middle Earth Geography | 0 | - | 4.56 | 37,093 |
| Lord of the Rings Trivia | 0 | - | 4.51 | 74,921 |
| Members of the Fellowship of the Ring | 0 | - | 4.79 | 43,007 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 24,726 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.76 | 18,914 |
| British History Quiz for Dummies | 0 | - | 4.54 | 61,132 |
| History of Scotland | 0 | - | 4.49 | 19,522 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.92 | 46,033 |
| Top 4 in English Football, 1888–2024 | 0 | - | 4.95 | 105,510 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 44,310 |
