| U.S. Citizenship Test Questions | 0 | - | 4.83 | 240,812 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,841 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,486 |
| Monarchies of Europe | 0 | - | 4.90 | 98,856 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,709 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,821 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,180 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 73,093 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,864 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,773 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,801 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,876 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,752 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 117,076 |
| The Only European Country ... | 0 | - | 4.91 | 218,950 |
| European Countries NOT in NATO | 0 | - | 4.90 | 62,480 |
| Name the English Monarchs | 0 | - | 4.91 | 506,297 |
| NATO Countries | 0 | - | 4.98 | 283,370 |
| EU Countries Quiz | 0 | - | 4.99 | 277,837 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,197 |
| All World Leaders 2026 | 0 | - | 4.95 | 20,997 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,697 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,490 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,493 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 152,035 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 220,718 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,755 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,723 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,677 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 90,163 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,773 |
| Slavic Countries | 0 | - | 4.96 | 112,354 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,438 |
| Counties of England | 0 | - | 4.97 | 802,739 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,548 |
| European Geography By Letter - A | 0 | - | 4.52 | 148,104 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,460 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,852 |
| European Geography By Letter - D | 0 | - | 4.48 | 116,411 |
| European Geography By Letter - L | 0 | - | 4.52 | 115,010 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,461 |
| European Geography By Letter - N | 0 | - | 4.44 | 102,093 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,572 |
| European Geography By Letter - V | 0 | - | 4.43 | 94,020 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,554 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,404 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,404 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,771 |
| European Diaspora - Top 11 Countries | 0 | - | 4.88 | 96,500 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 138,468 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,551 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,751 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,744 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,460 |
| European Countries with One Border | 0 | - | 4.97 | 183,771 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,507 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 151,345 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,963 |
| Federal Subjects of Russia | 0 | - | 4.95 | 149,443 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,464 |
| Regions of France Map Quiz | 0 | - | 4.97 | 145,622 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,780 |
| States of Germany | 0 | - | 4.95 | 154,431 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,677 |
| Regions of Italy | 0 | - | 4.92 | 77,040 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,790 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,297 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,750 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,515 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,840 |
| Champions League Winners | 0 | - | 4.92 | 1,015,906 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 67,001 |
| Monarchies of Asia | 0 | - | 4.97 | 71,496 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,281 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,357 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,825 |
| European Geography By Letter - E | 0 | - | 4.23 | 115,133 |
| European Geography By Letter - F | 0 | - | 4.15 | 94,429 |
| European Geography By Letter - H | 0 | - | 4.30 | 97,151 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,914 |
| European Geography By Letter - I | 0 | - | 4.07 | 96,536 |
| European Geography By Letter - K | 0 | - | 4.15 | 71,172 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,552 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,558 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,447 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,872 |
| European Geography A-Z | 0 | - | 4.29 | 49,476 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,719 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 121,694 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,868 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,567 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,862 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,672 |
| Russia Country Quiz | 0 | - | 4.83 | 115,299 |
| Countries That Border Russia | 0 | - | 4.98 | 464,459 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,732 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,578 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,931 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,778 |
| Departments of France | 0 | - | 4.93 | 55,135 |
| Countries Bordering France | 0 | - | 4.83 | 404,854 |
| Germany Country Quiz | 0 | - | 4.82 | 158,816 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 127,056 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,802 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 150,204 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 153,031 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,734 |
| History of The Netherlands | 0 | - | 4.46 | 17,550 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,467 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,848 |
| British Acronyms | 0 | - | 4.40 | 45,935 |
| British Monopoly Board | 0 | - | 4.52 | 41,266 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 32,104 |
| England or Wales? | 0 | - | 4.94 | 45,962 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 132,086 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,732 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,337 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,694 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,402 |
| All OPEC Countries Ever | 0 | - | 4.70 | 100,113 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,751 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 95,054 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,761 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,348 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,718 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,933 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,059 |
| Countries that Border Poland | 0 | - | 4.99 | 173,152 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,248 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,806 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,999 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,077 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,080 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,937 |
| Countries that Visit France the Most | 0 | - | 4.85 | 46,143 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,463 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,590 |
| Counties of Ireland | 0 | - | 4.92 | 197,277 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,247 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,364 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,099 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 132,347 |
| World Capitals Closest to London | 0 | - | 4.88 | 111,054 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,290 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,662 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,344 |
| U.S. States by Governor | 0 | - | 4.43 | 18,111 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,764 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,776 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,778 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,824 |
| History of Russia Quiz | 0 | - | 4.47 | 32,003 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,039 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,023 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,781 |
| Name that Greek Letter | 0 | - | 4.93 | 324,953 |
| History of Italy | 0 | - | 4.55 | 32,142 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,817 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,420 |
| Invasions of Great Britain | 0 | - | 4.51 | 60,093 |
| The Reign of Queen Elizabeth I | 0 | - | 4.53 | 31,960 |
| Houses of British Monarchs | 0 | - | 4.54 | 65,944 |
| Prime Ministers of the UK | 0 | - | 4.95 | 442,232 |
| 2026–2027 Football League Teams | 0 | - | 4.94 | 406,544 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,590 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,471 |
| Russian History A-Z | 0 | - | 4.35 | 32,211 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,586 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,414 |
| Countries that Beat Germany | 0 | - | 4.94 | 107,293 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,237 |
| The Trojan War | 0 | - | 4.83 | 39,982 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,929 |
| Famous Irish People | 0 | - | 4.05 | 46,063 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,581 |
| Roman Emperors | 0 | - | 4.95 | 121,177 |
| Countries Closest to Iceland | 0 | - | 4.90 | 74,138 |
| Countries that Beat Spain | 0 | - | 4.94 | 63,339 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,575 |
| The United States... or the United Kingdom? | 0 | - | 4.87 | 99,065 |
| People on Money - England | 0 | - | 4.29 | 16,643 |
| British Geography A-Z | 0 | - | 4.42 | 19,609 |
| British History A-Z #1 | 0 | - | 4.45 | 47,254 |
| The Margaret Thatcher Premiership | 0 | - | 3.79 | 9,283 |
| London A-Z | 0 | - | 4.10 | 40,877 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,323 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 36,056 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,612 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,436 |
| Historical Rulers #2 | 0 | - | 4.24 | 47,765 |
| Historical Rulers #1 | 0 | - | 4.34 | 119,524 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,257 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,404 |
| Australian Capitals | 0 | - | 4.92 | 62,828 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,519 |
| Senators Who Ran For President | 0 | - | 4.24 | 17,080 |
| U.S. Electoral College Landslides | 0 | - | 4.35 | 22,087 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,837 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,473 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,195 |
