| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,766 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,598 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,114 |
| Monarchies of Europe | 0 | - | 4.90 | 97,662 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,647 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,389 |
| 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 | 231,634 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 165,984 |
| Countries That Use the Euro | 0 | - | 4.95 | 103,810 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 114,222 |
| The Only European Country ... | 0 | - | 4.91 | 214,978 |
| European Countries NOT in NATO | 0 | - | 4.90 | 60,228 |
| Name the English Monarchs | 0 | - | 4.92 | 499,877 |
| NATO Countries | 0 | - | 4.98 | 277,844 |
| EU Countries Quiz | 0 | - | 4.99 | 271,405 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 363,114 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,233,729 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,115 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 192,094 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 150,666 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,264 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 86,733 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,169 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,311 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 88,682 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 127,497 |
| Slavic Countries | 0 | - | 4.96 | 111,194 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,726 |
| Counties of England | 0 | - | 4.97 | 792,141 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,285 |
| 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 | 48,141 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,135 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 95,306 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 136,860 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,433 |
| 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 | 122,196 |
| European Countries with One Border | 0 | - | 4.97 | 182,065 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,929 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 149,480 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,270 |
| 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 | 143,698 |
| States of Germany Map Quiz | 0 | - | 4.91 | 132,100 |
| States of Germany | 0 | - | 4.96 | 150,981 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,318 |
| Regions of Italy | 0 | - | 4.92 | 75,132 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 44,074 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,107 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,684 |
| 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 | 1,000,286 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,164 |
| Monarchies of Asia | 0 | - | 4.97 | 70,805 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,604 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,411 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,536 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,414 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,417 |
| 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 | 527,577 |
| 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 | 41,624 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,777 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,637 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,453 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,822 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 63,967 |
| Russia Country Quiz | 0 | - | 4.85 | 114,004 |
| Countries That Border Russia | 0 | - | 4.98 | 460,191 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,061 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,176 |
| France Cities Map Quiz | 0 | - | 4.96 | 165,642 |
| Departments of France | 0 | - | 4.93 | 53,214 |
| Countries Bordering France | 0 | - | 4.83 | 400,986 |
| Germany Country Quiz | 0 | - | 4.82 | 157,119 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 125,506 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,900 |
| Italy Country Quiz | 0 | - | 4.82 | 122,625 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 148,772 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 151,404 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,424 |
| History of The Netherlands | 0 | - | 4.46 | 17,352 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 96,365 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,001 |
| British Acronyms | 0 | - | 4.39 | 45,694 |
| British Monopoly Board | 0 | - | 4.52 | 41,091 |
| England or Wales? | 0 | - | 4.94 | 45,473 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,162 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,668 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,235 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,996 |
| OPEC Countries | 0 | - | 4.74 | 84,926 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,266 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,306 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,589 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,701 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,917 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 138,064 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,093 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,420 |
| Countries that Border Poland | 0 | - | 4.99 | 171,741 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 82,545 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,428 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,910 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,035 |
| 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 | 95,284 |
| Counties of Ireland | 0 | - | 4.92 | 193,927 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,618 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,841 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,170 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 129,386 |
| World Capitals Closest to London | 0 | - | 4.87 | 110,017 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 95,988 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,084 |
| U.S. States by Governor | 0 | - | 4.43 | 18,012 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,615 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,600 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 77,688 |
| 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 | 644,298 |
| Name that Greek Letter | 0 | - | 4.93 | 322,452 |
| 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 | 65,454 |
| Prime Ministers of the UK | 0 | - | 4.96 | 436,416 |
| 2025–2026 Football League Teams | 0 | - | 4.93 | 398,882 |
| 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 | 82,217 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 93,759 |
| Countries that Beat Germany | 0 | - | 4.95 | 105,781 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,068 |
| The Trojan War | 0 | - | 4.83 | 39,547 |
| 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 | 73,122 |
| 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 | 9,215 |
| 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 | 2,110,010 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,201 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,003 |
| Australian Capitals | 0 | - | 4.92 | 62,649 |
| 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 | 124,190 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 125,049 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,680 |
