| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,910 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,217 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,452 |
| Monarchies of Europe | 0 | - | 4.90 | 98,445 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,481 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,510 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,078 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,971 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,427 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,354 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,518 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,963 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,842 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,936 |
| The Only European Country ... | 0 | - | 4.91 | 217,730 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,799 |
| Name the English Monarchs | 0 | - | 4.91 | 504,495 |
| NATO Countries | 0 | - | 4.98 | 281,934 |
| EU Countries Quiz | 0 | - | 4.99 | 276,026 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,308 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,667 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,364 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,741 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,054 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,559 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,681 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,464 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,697 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,861 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,700 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,495 |
| Slavic Countries | 0 | - | 4.96 | 111,994 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,250 |
| Counties of England | 0 | - | 4.97 | 799,800 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,791 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,100 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,500 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,885 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,439 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,107 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,485 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,284 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,100 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,352 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,939 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,965 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,365 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,544 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,135 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,967 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,862 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,471 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,631 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,082 |
| European Countries with One Border | 0 | - | 4.97 | 183,254 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,025 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,859 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,456 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,280 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,191 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,969 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,323 |
| States of Germany | 0 | - | 4.95 | 153,546 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,360 |
| Regions of Italy | 0 | - | 4.92 | 76,419 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,513 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,647 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,488 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,237 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| Champions League Winners | 0 | - | 4.92 | 1,010,886 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,772 |
| Monarchies of Asia | 0 | - | 4.97 | 71,295 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,081 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,205 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,475 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,347 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,696 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,546 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,230 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,977 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,607 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,085 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,212 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,943 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,494 |
| European Geography A-Z | 0 | - | 4.29 | 49,387 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,678 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,835 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,684 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,771 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,242 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,466 |
| Russia Country Quiz | 0 | - | 4.83 | 114,783 |
| Countries That Border Russia | 0 | - | 4.98 | 463,105 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,530 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,444 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,815 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,291 |
| Departments of France | 0 | - | 4.93 | 54,609 |
| Countries Bordering France | 0 | - | 4.83 | 403,831 |
| Germany Country Quiz | 0 | - | 4.83 | 158,316 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,739 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,915 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,803 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,701 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,637 |
| History of The Netherlands | 0 | - | 4.46 | 17,499 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,178 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,348 |
| British Acronyms | 0 | - | 4.40 | 45,871 |
| British Monopoly Board | 0 | - | 4.52 | 41,209 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,993 |
| England or Wales? | 0 | - | 4.94 | 45,827 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,224 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,546 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,481 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,223 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,717 |
| All OPEC Countries Ever | 0 | - | 4.74 | 99,457 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,634 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,618 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,357 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,227 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,558 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,692 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,526 |
| Countries that Border Poland | 0 | - | 4.99 | 172,704 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,023 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,770 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,489 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,738 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,907 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,721 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,994 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,312 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,604 |
| Counties of Ireland | 0 | - | 4.92 | 196,301 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,063 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,465 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,501 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,483 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,852 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,066 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,932 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,755 |
| U.S. States by Governor | 0 | - | 4.43 | 18,084 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,723 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,720 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,464 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,450 |
| History of Russia Quiz | 0 | - | 4.47 | 31,970 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,949 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,915 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,607 |
| Name that Greek Letter | 0 | - | 4.93 | 324,334 |
| History of Italy | 0 | - | 4.55 | 32,085 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,745 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,323 |
| Invasions of Great Britain | 0 | - | 4.51 | 59,991 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,865 |
| Houses of British Monarchs | 0 | - | 4.53 | 65,819 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,612 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,170 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,200 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,408 |
| Russian History A-Z | 0 | - | 4.35 | 31,915 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,155 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,207 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,834 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,185 |
| The Trojan War | 0 | - | 4.83 | 39,846 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,402 |
| Famous Irish People | 0 | - | 4.05 | 46,029 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,008 |
| Roman Emperors | 0 | - | 4.95 | 120,541 |
| Countries Closest to Iceland | 0 | - | 4.90 | 73,801 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,129 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,549 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 98,806 |
| People on Money - England | 0 | - | 4.29 | 16,627 |
| British Geography A-Z | 0 | - | 4.42 | 19,574 |
| British History A-Z #1 | 0 | - | 4.45 | 46,614 |
| The Margaret Thatcher Premiership | 0 | - | 3.79 | 9,261 |
| London A-Z | 0 | - | 4.10 | 40,834 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,180 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,948 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,549 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,357 |
| Historical Rulers #2 | 0 | - | 4.27 | 47,596 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,112 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,800 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,288 |
| Australian Capitals | 0 | - | 4.92 | 62,776 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,327 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,063 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,060 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,398 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,050 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,052 |
