| Name the English Monarchs | 0 | - | 4.91 | 503,853 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 32,188 |
| Monarchies of Europe | 0 | - | 4.90 | 98,339 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,723 |
| Countries of Europe in 1848 | 0 | - | 4.98 | 83,307 |
| Countries of Europe in 1870 with a Map | 0 | - | 4.95 | 65,070 |
| Every Country of Europe Since 1815 With a Map | 0 | - | 4.98 | 71,301 |
| Countries of Europe in 1360 with a Map | 0 | - | 4.99 | 57,124 |
| Europe Map Quiz | 0 | - | 5.00 | 4,770,402 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,312 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,240 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,573 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,873 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,595 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,985 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,053 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 90,353 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 648,788 |
| Name that Greek Letter | 0 | - | 4.93 | 324,147 |
| Hindu Countries | 0 | - | 4.86 | 50,295 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,529 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,003 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,650 |
| The Only European Country ... | 0 | - | 4.91 | 217,348 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,552 |
| The Trojan War | 0 | - | 4.83 | 39,795 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,222 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,408 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,643 |
| Roman Emperors | 0 | - | 4.95 | 120,371 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,193 |
| History of Russia Quiz | 0 | - | 4.47 | 31,947 |
| History of Italy | 0 | - | 4.55 | 32,052 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,718 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,295 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,952 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,841 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,761 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,477 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,248,241 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,330,575 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,901 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,417 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,331 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,345 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,048 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,198 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 172,885 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,542 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,384 |
| Slavic Countries | 0 | - | 4.96 | 111,873 |
| Olympian Gods Quiz | 0 | - | 4.96 | 501,808 |
| Ancient Greek Words | 0 | - | 4.93 | 111,892 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,410 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,337 |
| Counties of England | 0 | - | 4.97 | 798,735 |
| British History A-Z #1 | 0 | - | 4.45 | 46,577 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,073 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,030 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,827 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,676 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,373 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,972 |
| European Countries with One Border | 0 | - | 4.97 | 183,103 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,880 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 85,810 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,956 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,082 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,785 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,134 |
| States of Germany | 0 | - | 4.95 | 153,144 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,273 |
| Regions of Italy | 0 | - | 4.92 | 76,217 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,924 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,273 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,407 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,356 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,387 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,145 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,715 |
| Champions League Winners | 0 | - | 4.92 | 1,009,689 |
| Monarchies of Asia | 0 | - | 4.97 | 71,216 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,012 |
| Battle to Country | 0 | - | 4.91 | 53,509 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 67,224 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 101,017 |
| Countries That Border Russia | 0 | - | 4.98 | 462,779 |
| History of Austria | 0 | - | 4.70 | 17,901 |
| Geography of the French Empire | 0 | - | 4.45 | 27,154 |
| The French Revolution | 0 | - | 4.47 | 24,057 |
| Countries Bordering France | 0 | - | 4.83 | 403,503 |
| Kings of France Quiz | 0 | - | 4.20 | 32,813 |
| History of France | 0 | - | 4.59 | 57,265 |
| The Reign of Napoleon | 0 | - | 4.54 | 39,022 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 27,375 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,619 |
| The Vikings! | 0 | - | 4.46 | 28,368 |
| The Portuguese Empire | 0 | - | 4.58 | 12,082 |
| Wives of King Henry VIII | 0 | - | 4.55 | 53,402 |
| English Royal Consorts | 0 | - | 4.38 | 37,407 |
| Countries the UK Declared War On | 0 | - | 4.55 | 122,655 |
| Geography of the British Empire | 0 | - | 4.48 | 39,733 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,746 |
| Israel Immigration by Country | 0 | - | 4.29 | 36,182 |
| Countries Closest to Israel | 0 | - | 4.69 | 106,273 |
| Countries of the Mongol Empire on a Map | 0 | - | 4.99 | 107,071 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,758 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,800 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,583 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,368 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,934 |
| Canadian Prime Ministers | 0 | - | 4.63 | 57,635 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,784 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,335 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,948 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,009 |
| Russia Country Quiz | 0 | - | 4.83 | 114,684 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,462 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,411 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,764 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,120 |
| Departments of France | 0 | - | 4.93 | 54,446 |
| Germany Country Quiz | 0 | - | 4.83 | 158,157 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,606 |
| German History A-Z | 0 | - | 4.49 | 24,657 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,071 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,947 |
| Most-Mentioned Characters in the Iliad | 0 | - | 4.81 | 20,838 |
| Figures from Greek Mythology | 0 | - | 4.91 | 187,677 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,641 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,387 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,612 |
| History of The Netherlands | 0 | - | 4.46 | 17,481 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,106 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,190 |
| British Acronyms | 0 | - | 4.40 | 45,848 |
| British Monopoly Board | 0 | - | 4.52 | 41,194 |
| Modern-Day Countries of the British Empire in 1921 | 0 | - | 4.99 | 117,968 |
| Medieval English History | 0 | - | 4.53 | 43,569 |
| England or Wales? | 0 | - | 4.94 | 45,793 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,967 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,223 |
| Asian Countries with the Most Christians | 0 | - | 4.85 | 97,453 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,432 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,327 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,067 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,417 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,411 |
| U.S. Presidents Quiz | 0 | - | 5.00 | 3,707,569 |
| Anglo-Saxon and Viking Kings of England | 0 | - | 4.74 | 12,267 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,522 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,178 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,674 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,505 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,991 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,565 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,623 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,940 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,402 |
| Countries that Border Poland | 0 | - | 4.99 | 172,589 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,973 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,460 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,411 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,922 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,878 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,654 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,850 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,650 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,959 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,280 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.40 | 23,506 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,321 |
| History of Germany | 0 | - | 4.39 | 52,894 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,876 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,707 |
| Counties of Ireland | 0 | - | 4.92 | 196,022 |
| Italian History A-Z | 0 | - | 4.21 | 17,736 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,016 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,321 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,785 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,987 |
| Roman Names for Places | 0 | - | 4.62 | 58,394 |
| Byzantine History | 0 | - | 4.91 | 28,913 |
| Byzantine Emperors | 0 | - | 4.92 | 14,353 |
| History of Spain | 0 | - | 4.23 | 21,114 |
| Geography of the Spanish Empire | 0 | - | 4.49 | 37,216 |
| Spanish History A-Z | 0 | - | 4.37 | 19,322 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,335 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,239 |
| Anglo-Saxon Kingdoms of England | 0 | - | 4.60 | 25,776 |
| Giant Great Britain Millennium Quiz | 0 | - | 4.78 | 20,186 |
| British History Multiple Choice #1 | 0 | - | 4.46 | 55,202 |
| British History Multiple Choice #2 | 0 | - | 4.42 | 37,998 |
| The Reign of Queen Elizabeth II | 0 | - | 4.36 | 35,875 |
| Prime Ministers of the UK | 0 | - | 4.95 | 439,996 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,788 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 96,992 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 402,677 |
| Malta Country Quiz | 0 | - | 4.81 | 31,112 |
| History of Israel | 0 | - | 3.79 | 11,071 |
