| Catholic Countries in Europe | 0 | - | 4.83 | 95,471 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 530,940 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,216 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,481 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,279 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,517 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,962 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,401 |
| Official European Union Languages | 0 | - | 4.97 | 239,084 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,237 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,510 |
| Moldova Country Quiz | 0 | - | 4.82 | 30,915 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,152 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,939 |
| Top Five Countries by Religion | 0 | - | 4.93 | 172,478 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,015 |
| History of Russia Quiz | 0 | - | 4.47 | 31,970 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,445 |
| Celtic Nations | 0 | - | 4.69 | 47,011 |
| 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 | 109,438 |
| 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 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,715 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,697 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,859 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,699 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,495 |
| Slavic Countries | 0 | - | 4.96 | 111,994 |
| Famous Germans | 0 | - | 4.50 | 55,570 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,520 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,250 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,907 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,365 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,789 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,747 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,634 |
| Buddhist Countries | 0 | - | 4.96 | 144,708 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 239,909 |
| Monarchies of Europe | 0 | - | 4.90 | 98,445 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 125,191 |
| States of Germany | 0 | - | 4.95 | 153,545 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,360 |
| Regions of Italy | 0 | - | 4.92 | 76,416 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,513 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,646 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,488 |
| Champions League Winners | 0 | - | 4.92 | 1,010,878 |
| 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 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,109 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,906 |
| Orthodox Countries | 0 | - | 4.92 | 132,370 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,779 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,631 |
| Geography of Russia | 0 | - | 4.57 | 21,560 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,205 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,771 |
| A Quiz About Islam | 0 | - | 4.31 | 48,521 |
| Countries That Don't Recognize Israel | 0 | - | 4.68 | 34,993 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,475 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,971 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,347 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,695 |
| 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 Geography By Letter - S #2 | 0 | - | 4.20 | 51,494 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,426 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,353 |
| European Geography A-Z | 0 | - | 4.29 | 49,387 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,684 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,530 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,444 |
| Famous French People | 0 | - | 4.07 | 35,917 |
| Departments of France | 0 | - | 4.93 | 54,607 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,637 |
| History of The Netherlands | 0 | - | 4.46 | 17,499 |
| 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 |
| Name the English Monarchs | 0 | - | 4.91 | 504,495 |
| England or Wales? | 0 | - | 4.94 | 45,827 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,223 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,546 |
| African Countries with the Most Christians | 0 | - | 4.94 | 75,815 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,617 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 191,357 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,668 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,678 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,954 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,833 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,686 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,692 |
| Slavic Languages | 0 | - | 4.68 | 54,515 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,023 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,489 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 27,949 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,907 |
| France A-Z | 0 | - | 4.16 | 38,283 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,606 |
| Name that Greek Letter | 0 | - | 4.93 | 324,334 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,682 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,531 |
| 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 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,449 |
| Famous Russians | 0 | - | 4.16 | 23,880 |
| Word Chain - Russia | 0 | - | 4.33 | 15,776 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,795 |
| Russian History A-Z | 0 | - | 4.35 | 31,915 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,584 |
| 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 | 112,401 |
| Famous Irish People | 0 | - | 4.05 | 46,029 |
| History of Italy | 0 | - | 4.55 | 32,085 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,057 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,004 |
| Roman Emperors | 0 | - | 4.95 | 120,538 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,745 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,625 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,323 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,549 |
| People on Money - England | 0 | - | 4.29 | 16,627 |
| British Geography A-Z | 0 | - | 4.42 | 19,574 |
| London A-Z | 0 | - | 4.10 | 40,834 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,544 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,932 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,755 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 46,849 |
| Sharia Law Countries | 0 | - | 4.48 | 63,831 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,288 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 52,327 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,416 |
| Europe Map Quiz | 0 | - | 5.00 | 4,774,449 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,390 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,046 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,344 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,319 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,078 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,095 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,173 |
| Capitals of French Regions | 0 | - | 4.45 | 16,123 |
| Regions of France | 0 | - | 4.70 | 121,415 |
| France Immigration by Country | 0 | - | 4.70 | 76,717 |
| Kings of France Quiz | 0 | - | 4.20 | 32,845 |
| German Groups of Things | 0 | - | 4.46 | 38,552 |
| Capitals of German States | 0 | - | 4.74 | 29,005 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,419 |
| Germany True or False? | 0 | - | 4.61 | 48,919 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,195 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,251 |
| Ancient Greek Words | 0 | - | 4.93 | 112,039 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,541 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,510 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,331 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,188 |
| Famous Scottish People | 0 | - | 4.22 | 18,418 |
| Asian Geography By Letter - A | 0 | - | 4.64 | 71,303 |
| Asian Geography by Letter - H | 0 | - | 4.50 | 65,876 |
| Asian Geography By Letter - M | 0 | - | 4.48 | 61,526 |
| Asian Geography by Letter - P | 0 | - | 4.45 | 58,037 |
| Asian Geography by Letter - T | 0 | - | 4.51 | 57,500 |
| Asian Geography By Letter - L | 0 | - | 4.49 | 43,159 |
| Asian Geography By Letter - O | 0 | - | 4.66 | 32,078 |
| Israel Immigration by Country | 0 | - | 4.29 | 36,226 |
| Catholic Countries | 0 | - | 4.79 | 215,256 |
| Top 10 Most Islamic European Countries | 0 | - | 4.75 | 161,452 |
| Oceania Map Quiz | 0 | - | 4.98 | 655,799 |
| Australian Capitals | 0 | - | 4.92 | 62,776 |
| European Physical Geography | 0 | - | 4.26 | 33,552 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,328 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,038 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,846 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,596 |
| Romania Country Quiz | 0 | - | 4.63 | 53,950 |
| History of Austria | 0 | - | 4.70 | 17,923 |
| Geography of the French Empire | 0 | - | 4.45 | 27,168 |
| The French Revolution | 0 | - | 4.47 | 24,079 |
| France Multiple Choice | 0 | - | 4.39 | 40,783 |
| History of France | 0 | - | 4.61 | 57,347 |
| German History A-Z | 0 | - | 4.49 | 24,681 |
| Italian History A-Z | 0 | - | 4.21 | 17,750 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,373 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,323 |
| The Vikings! | 0 | - | 4.46 | 28,375 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,246 |
