| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,769 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,598 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,158 |
| Monarchies of Europe | 0 | - | 4.90 | 97,665 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,647 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,397 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,836 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,665 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,575 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,448 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,637 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,985 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,813 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,226 |
| The Only European Country ... | 0 | - | 4.91 | 214,983 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,229 |
| Name the English Monarchs | 0 | - | 4.92 | 499,880 |
| NATO Countries | 0 | - | 4.98 | 277,848 |
| EU Countries Quiz | 0 | - | 4.99 | 271,409 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,116 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,746 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,121 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,096 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,666 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,267 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,734 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,178 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,313 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,683 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,498 |
| Slavic Countries | 0 | - | 4.96 | 111,196 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,726 |
| Counties of England | 0 | - | 4.97 | 792,154 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,294 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,658 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,112 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,093 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,966 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,430 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,287 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,019 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,799 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,429 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,584 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,789 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,142 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,137 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,307 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,861 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,435 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,553 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,284 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,197 |
| European Countries with One Border | 0 | - | 4.97 | 182,066 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,930 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,481 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,271 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,109 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,498 |
| Regions of France Map Quiz | 0 | - | 4.97 | 143,699 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,102 |
| States of Germany | 0 | - | 4.96 | 150,983 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,319 |
| Regions of Italy | 0 | - | 4.92 | 75,135 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,078 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,108 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,686 |
| Countries and Territories of the United Kingdom | 0 | - | 4.89 | 93,303 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,611 |
| Champions League Winners | 0 | - | 4.92 | 1,000,296 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,164 |
| Monarchies of Asia | 0 | - | 4.97 | 70,807 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,605 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,411 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,537 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,418 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,418 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,843 |
| European Geography By Letter - H | 0 | - | 4.30 | 95,084 |
| European Geography By Letter - G | 0 | - | 4.27 | 101,708 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,665 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,352 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,078 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,419 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,579 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,642 |
| European Geography A-Z | 0 | - | 4.29 | 49,098 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,625 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,778 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,637 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,462 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,824 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,967 |
| Russia Country Quiz | 0 | - | 4.85 | 114,007 |
| Countries That Border Russia | 0 | - | 4.98 | 460,193 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,062 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,178 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,642 |
| Departments of France | 0 | - | 4.93 | 53,215 |
| Countries Bordering France | 0 | - | 4.83 | 400,989 |
| Germany Country Quiz | 0 | - | 4.82 | 157,119 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,507 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,904 |
| Italy Country Quiz | 0 | - | 4.82 | 122,626 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,772 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,405 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,424 |
| History of The Netherlands | 0 | - | 4.46 | 17,352 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,366 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,002 |
| British Acronyms | 0 | - | 4.39 | 45,694 |
| British Monopoly Board | 0 | - | 4.52 | 41,093 |
| England or Wales? | 0 | - | 4.94 | 45,473 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,164 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,668 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,236 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,996 |
| OPEC Countries | 0 | - | 4.74 | 84,926 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,267 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,308 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,597 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,702 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,917 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,066 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,094 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,422 |
| Countries that Border Poland | 0 | - | 4.99 | 171,742 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,545 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,430 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,911 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,036 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,620 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,007 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,682 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 71,960 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,288 |
| Counties of Ireland | 0 | - | 4.92 | 193,927 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,619 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,842 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,173 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,388 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,019 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,989 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,085 |
| U.S. States by Governor | 0 | - | 4.43 | 18,012 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,616 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,600 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,689 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,535 |
| History of Russia Quiz | 0 | - | 4.49 | 31,836 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,715 |
| Moldova Country Quiz | 0 | - | 4.81 | 30,643 |
| Andorra Country Quiz | 0 | - | 4.90 | 31,517 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,304 |
| Name that Greek Letter | 0 | - | 4.93 | 322,453 |
| History of Italy | 0 | - | 4.55 | 31,892 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,553 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,081 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,700 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,677 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,456 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,425 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,891 |
| Famous Dictators #1 | 0 | - | 4.69 | 199,140 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,254 |
| Countries that Beat Russia | 0 | - | 4.81 | 82,218 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,759 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,782 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,068 |
| The Trojan War | 0 | - | 4.83 | 39,549 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,105 |
| Famous Irish People | 0 | - | 4.05 | 45,902 |
| Countries that Beat Italy | 0 | - | 4.85 | 54,106 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,256 |
| Roman Emperors | 0 | - | 4.95 | 119,151 |
| Countries Closest to Iceland | 0 | - | 4.89 | 73,123 |
| Countries that Beat Spain | 0 | - | 4.94 | 62,636 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,495 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,092 |
| People on Money - England | 0 | - | 4.29 | 16,587 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,492 |
| British Geography A-Z | 0 | - | 4.41 | 19,463 |
| British History A-Z #1 | 0 | - | 4.45 | 46,281 |
| The Margaret Thatcher Premiership | 0 | - | 3.79 | 9,216 |
| London A-Z | 0 | - | 4.10 | 40,692 |
| World Leaders Quiz #1 | 0 | - | 4.11 | 109,784 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,286 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,119 |
| Historical Rulers #2 | 0 | - | 4.26 | 47,300 |
| Historical Rulers #1 | 0 | - | 4.35 | 118,637 |
| Africa Map Quiz | 0 | - | 5.00 | 2,110,027 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,213 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,003 |
| Australian Capitals | 0 | - | 4.92 | 62,650 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,928 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,015 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,011 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 124,193 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,051 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,680 |
