| Countries that Beat Russia | 0 | - | 4.81 | 82,287 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 527,984 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 211,230 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 102,873 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,956 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 275,819 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,188 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 68,880 |
| Official European Union Languages | 0 | - | 4.97 | 237,750 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,374 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,714 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,664 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,652 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,912 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,771 |
| Italian Foods | 0 | - | 4.31 | 72,489 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,685 |
| British to American Food Translation | 0 | - | 3.38 | 51,913 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,323,929 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,135 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 309,469 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 169,658 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,213 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 31,782 |
| Ancient Greek Words | 0 | - | 4.93 | 111,154 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 352,829 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,325 |
| Celtic Nations | 0 | - | 4.69 | 46,879 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,151 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,800 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,088 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,131 |
| German Groups of Things | 0 | - | 4.46 | 38,393 |
| Champions League Winners | 0 | - | 4.92 | 1,001,258 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,213 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,767 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,641 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,650 |
| European Geography By Letter - B #2 | 0 | - | 4.84 | 76,727 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 80,404 |
| Federal Subjects of Russia | 0 | - | 4.94 | 145,526 |
| Countries That Border Russia | 0 | - | 4.98 | 460,486 |
| States of Germany | 0 | - | 4.96 | 151,242 |
| Germany Immigration by Country | 0 | - | 4.85 | 80,627 |
| Regions of Italy | 0 | - | 4.92 | 75,281 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 50,320 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,259 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,787 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,625 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,842 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,528 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,156 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,834 |
| Name a Valid African Country | 0 | - | 4.98 | 153,495 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,840 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,543 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,310 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,978 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 114,009 |
| Russia Country Quiz | 0 | - | 4.85 | 114,092 |
| Departments of France | 0 | - | 4.93 | 53,428 |
| Word Chain - France | 0 | - | 4.38 | 42,685 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,457 |
| British Groups of Things | 0 | - | 4.25 | 82,792 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,999 |
| England or Wales? | 0 | - | 4.94 | 45,509 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 129,352 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,399 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,107 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,536 |
| Countries that Beat the United States | 0 | - | 4.93 | 166,221 |
| Countries that Beat Canada | 0 | - | 4.90 | 87,146 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,516 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,630 |
| Word Scramble - European Countries | 0 | - | 4.70 | 141,331 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 113,945 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,169 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,552 |
| Slavic Languages | 0 | - | 4.68 | 54,178 |
| Countries that Border Poland | 0 | - | 4.99 | 171,837 |
| Russian History A-Z | 0 | - | 4.38 | 31,444 |
| Countries Bordering Serbia | 0 | - | 4.96 | 92,103 |
| The Trojan War | 0 | - | 4.83 | 39,584 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 644,926 |
| Name that Greek Letter | 0 | - | 4.93 | 322,656 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,242 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,531 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,316 |
| Roman Emperors | 0 | - | 4.95 | 119,362 |
| Countries that Beat Portugal | 0 | - | 4.86 | 58,977 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,369 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,542 |
| Most Common Surnames in the UK | 0 | - | 4.21 | 69,584 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,974 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 55,532 |
| American Foods | 0 | - | 3.66 | 39,332 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,638 |
| History of Russia Quiz | 0 | - | 4.49 | 31,855 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,654 |
| Biggest Trading Partners - Russia | 0 | - | 4.55 | 36,426 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,163 |
| French Foods | 0 | - | 4.00 | 27,646 |
| Word Chain - Germany | 0 | - | 4.31 | 22,535 |
| Olympian Gods Quiz | 0 | - | 4.96 | 498,644 |
| History of Italy | 0 | - | 4.55 | 31,909 |
| Word Chain - Italy | 0 | - | 4.07 | 23,138 |
| Italy Multiple Choice | 0 | - | 4.73 | 103,493 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,574 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,348 |
| Countries that Beat Iceland | 0 | - | 4.81 | 42,564 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,105 |
| Geography of Spain | 0 | - | 4.59 | 22,023 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,307 |
| Members of the British Royal Family | 0 | - | 4.10 | 113,933 |
| Name a Valid English City | 0 | - | 4.19 | 16,683 |
| Foods by Country of Origin #1 | 0 | - | 4.40 | 335,884 |
| Countries That Produce the Most Spices | 0 | - | 4.44 | 41,511 |
| Countries that Produce the Most Cheese per Capita | 0 | - | 4.53 | 52,681 |
| Fruit and Vegetable Emojis | 0 | - | 4.42 | 79,883 |
| Countries Which Eat the Most Beef | 0 | - | 4.46 | 50,184 |
| Countries by Milk Production | 0 | - | 4.54 | 43,811 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,912 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 267,478 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,037 |
| European Geography By Letter - A | 0 | - | 4.61 | 132,711 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 111,149 |
| European Geography By Letter - C | 0 | - | 4.46 | 112,126 |
| European Geography By Letter - D | 0 | - | 4.50 | 107,007 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,463 |
| European Geography By Letter - M | 0 | - | 4.64 | 129,361 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,047 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,825 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,456 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,634 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,897 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,816 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,273 |
| Capitals of French Regions | 0 | - | 4.45 | 16,022 |
| Regions of France | 0 | - | 4.77 | 120,042 |
| France Immigration by Country | 0 | - | 4.72 | 76,251 |
| Famous Germans | 0 | - | 4.50 | 54,865 |
| Capitals of German States | 0 | - | 4.74 | 28,899 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,222 |
| Germany True or False? | 0 | - | 4.61 | 48,669 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,757 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,932 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 55,859 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,102 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,164 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,476 |
| Name Every Beatles Song | 0 | - | 4.97 | 235,161 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,198 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,424 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,449 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,204 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 278,255 |
| Countries That Eat the Most Pork | 0 | - | 4.18 | 39,198 |
| Countries that Produce the Most Cheese | 0 | - | 4.77 | 63,180 |
| Top 15 Countries with the Most Starbucks | 0 | - | 4.51 | 80,759 |
| Africa Map Quiz | 0 | - | 5.00 | 2,111,379 |
| Oceania Map Quiz | 0 | - | 4.98 | 638,921 |
| Australian Capitals | 0 | - | 4.92 | 62,668 |
| Word Chain - Australia | 0 | - | 4.37 | 38,086 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,408 |
| European Physical Geography | 0 | - | 4.26 | 33,434 |
| Albania Country Quiz | 0 | - | 4.54 | 38,846 |
| Geography of Russia | 0 | - | 4.57 | 21,488 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,869 |
| Serbia Country Quiz | 0 | - | 4.44 | 34,919 |
| History of Austria | 0 | - | 4.70 | 17,810 |
| Geography of the French Empire | 0 | - | 4.45 | 27,002 |
| The French Revolution | 0 | - | 4.46 | 23,872 |
| France Multiple Choice | 0 | - | 4.38 | 40,686 |
| History of France | 0 | - | 4.59 | 56,657 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,440 |
| Mediterranean Foods | 0 | - | 3.80 | 11,419 |
| Figures from Greek Mythology | 0 | - | 4.91 | 185,953 |
| Roman History Vocabulary | 0 | - | 4.40 | 57,531 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 435,326 |
| The Vikings! | 0 | - | 4.46 | 28,290 |
| Sweden Immigration by Country | 0 | - | 4.55 | 55,919 |
| The Portuguese Empire | 0 | - | 4.58 | 12,034 |
| American to British Word Translation | 0 | - | 4.13 | 138,404 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,823 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,463 |
| Champions League Top 4 | 0 | - | 4.77 | 135,093 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,444,278 |
| Asia Map Quiz | 0 | - | 4.99 | 911,528 |
| Sushi Translation | 0 | - | 4.08 | 13,922 |
| Countries that Eat the Most Meat | 0 | - | 4.23 | 42,395 |
| Countries that Beat India | 0 | - | 4.41 | 62,774 |
| Countries of Africa | 0 | - | 5.00 | 2,523,041 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,329 |
| African East Coast | 0 | - | 4.96 | 95,582 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,410 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,212 |
| Countries that Beat D.R. Congo | 0 | - | 4.74 | 41,643 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,019 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,246 |
| Australia Map Quiz | 0 | - | 4.94 | 343,393 |
