| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,830 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,216 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,322 |
| Monarchies of Europe | 0 | - | 4.90 | 98,441 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,467 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,502 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,078 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,970 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,423 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,347 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,510 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,953 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,826 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,892 |
| The Only European Country ... | 0 | - | 4.91 | 217,711 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,790 |
| Name the English Monarchs | 0 | - | 4.91 | 504,482 |
| NATO Countries | 0 | - | 4.98 | 281,922 |
| EU Countries Quiz | 0 | - | 4.99 | 276,000 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,290 |
| All World Leaders 2026 | 0 | - | 4.94 | 20,660 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,250,314 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,707 |
| 10 Biggest European Countries by Area | 0 | - | 4.99 | 193,042 |
| 10 Westernmost Countries in Europe | 0 | - | 4.96 | 151,548 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 219,668 |
| European Landmarks Map Quiz | 0 | - | 4.97 | 87,456 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,652 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,819 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,690 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,493 |
| Slavic Countries | 0 | - | 4.96 | 111,989 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,249 |
| Counties of England | 0 | - | 4.97 | 799,783 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,760 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,095 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,496 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,882 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,436 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,104 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,481 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,282 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,098 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,350 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,936 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,963 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,365 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,542 |
| European Diaspora - Top 11 Countries | 0 | - | 4.90 | 96,126 |
| 10 European Countries with the Most Tourists | 0 | - | 4.98 | 137,963 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,857 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,469 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,630 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,079 |
| European Countries with One Border | 0 | - | 4.97 | 183,244 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,021 |
| Countries of Europe in 1815 With a Map | 0 | - | 4.99 | 150,858 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,450 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,269 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,187 |
| Regions of France Map Quiz | 0 | - | 4.97 | 144,964 |
| States of Germany Map Quiz | 0 | - | 4.92 | 133,318 |
| States of Germany | 0 | - | 4.95 | 153,525 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,359 |
| Regions of Italy | 0 | - | 4.92 | 76,409 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,512 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,641 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,478 |
| Countries and Territories of the United Kingdom | 0 | - | 4.90 | 94,233 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| Champions League Winners | 0 | - | 4.92 | 1,010,837 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 66,768 |
| Monarchies of Asia | 0 | - | 4.97 | 71,290 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,075 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,204 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,469 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,345 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,692 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,542 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,227 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,974 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,605 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,085 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,211 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,921 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,493 |
| European Geography A-Z | 0 | - | 4.29 | 49,386 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,678 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,821 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,676 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,754 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,237 |
| The Only Remaining European Country . . . | 0 | - | 4.41 | 64,465 |
| Russia Country Quiz | 0 | - | 4.83 | 114,781 |
| Countries That Border Russia | 0 | - | 4.98 | 463,074 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,529 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,443 |
| Andorra Country Quiz | 0 | - | 4.91 | 31,813 |
| France Cities Map Quiz | 0 | - | 4.96 | 167,287 |
| Departments of France | 0 | - | 4.93 | 54,604 |
| Countries Bordering France | 0 | - | 4.83 | 403,817 |
| Germany Country Quiz | 0 | - | 4.83 | 158,311 |
| Germany Cities Map Quiz | 0 | - | 4.87 | 126,733 |
| Countries Bordering Germany | 0 | - | 4.99 | 370,905 |
| Regions of Italy Map Quiz | 0 | - | 4.96 | 149,796 |
| Italy Cities Map Quiz | 0 | - | 4.97 | 152,700 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,636 |
| History of The Netherlands | 0 | - | 4.46 | 17,499 |
| Spain Cities Map Quiz | 0 | - | 4.87 | 97,175 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,339 |
| British Acronyms | 0 | - | 4.40 | 45,869 |
| 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 | 131,213 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,545 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,477 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,220 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,714 |
| All OPEC Countries Ever | 0 | - | 4.74 | 99,453 |
| G7 Leaders Since 2003 | 0 | - | 4.48 | 46,631 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,608 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,356 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,223 |
| Top 10 European Countries by Coastline | 0 | - | 4.88 | 138,556 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,685 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,520 |
| Countries that Border Poland | 0 | - | 4.99 | 172,696 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,022 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 101,760 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,484 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,731 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,906 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,717 |
| Countries that Visit France the Most | 0 | - | 4.85 | 45,992 |
| Countries Closest to Metropolitan France | 0 | - | 4.89 | 72,311 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 97,594 |
| Counties of Ireland | 0 | - | 4.92 | 196,295 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,060 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,459 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,497 |
| Counties of the UK and Ireland | 0 | - | 4.98 | 131,477 |
| World Capitals Closest to London | 0 | - | 4.88 | 110,851 |
| 50 Busiest Air Routes from London | 0 | - | 4.87 | 97,060 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,902 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,749 |
| U.S. States by Governor | 0 | - | 4.43 | 18,084 |
| U.S. Political Parties in History | 0 | - | 4.44 | 27,722 |
| U.S. Government Agencies | 0 | - | 4.44 | 19,720 |
| European Cities Beginning with B - Click Map | 0 | - | 4.77 | 78,458 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,445 |
| History of Russia Quiz | 0 | - | 4.47 | 31,970 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,948 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,915 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,592 |
| Name that Greek Letter | 0 | - | 4.93 | 324,326 |
| History of Italy | 0 | - | 4.55 | 32,084 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,744 |
| 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 | 65,816 |
| Prime Ministers of the UK | 0 | - | 4.95 | 440,602 |
| 2025–2026 Football League Teams | 0 | - | 4.94 | 403,155 |
| Famous Dictators #1 | 0 | - | 4.69 | 200,192 |
| The U.S. Government - How Does it Work? | 0 | - | 4.34 | 42,408 |
| Russian History A-Z | 0 | - | 4.35 | 31,914 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,154 |
| Countries Invaded by the USSR | 0 | - | 4.29 | 94,204 |
| Countries that Beat Germany | 0 | - | 4.94 | 106,828 |
| Ancient Greece A-Z | 0 | - | 4.60 | 23,184 |
| The Trojan War | 0 | - | 4.83 | 39,844 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,396 |
| Famous Irish People | 0 | - | 4.05 | 46,029 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,965 |
| Roman Emperors | 0 | - | 4.95 | 120,528 |
| 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 | 98,805 |
| People on Money - England | 0 | - | 4.29 | 16,627 |
| British Geography A-Z | 0 | - | 4.42 | 19,573 |
| British History A-Z #1 | 0 | - | 4.45 | 46,611 |
| The Margaret Thatcher Premiership | 0 | - | 3.79 | 9,261 |
| London A-Z | 0 | - | 4.10 | 40,834 |
| World Leaders Quiz #1 | 0 | - | 4.12 | 110,178 |
| World Leaders Quiz #2 | 0 | - | 4.01 | 35,947 |
| Historical Leaders by Date #1 | 0 | - | 4.48 | 31,546 |
| Historical Leaders by Date #2 | 0 | - | 4.55 | 30,356 |
| Historical Rulers #2 | 0 | - | 4.27 | 47,594 |
| Historical Rulers #1 | 0 | - | 4.35 | 119,109 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,734 |
| 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 | 52,321 |
| 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 | 126,049 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,052 |
