| Category Elimination - European Geography #3 | 0 | - | 4.85 | 79,675 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,293 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,963 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,005 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,593 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,469 |
| Category Elimination - Countries #1 | 0 | - | 4.99 | 316,671 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 121,304 |
| Category Elimination - Countries #2 | 0 | - | 4.98 | 233,325 |
| Category Elimination - Countries #3 | 0 | - | 4.99 | 222,613 |
| Category Elimination - Countries #4 | 0 | - | 4.99 | 190,138 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,389 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,425 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,492 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 526,108 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,227 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 96,278 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,136 |
| European Geography By Letter - B #2 | 0 | - | 4.83 | 76,144 |
| Save Europeans by Guessing Countries | 0 | - | 4.84 | 209,138 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 274,024 |
| World Countries by 10 Category Elimination #2 | 0 | - | 4.47 | 70,434 |
| Category Elimination - Countries #5 | 0 | - | 4.69 | 143,093 |
| Category Elimination - Elements | 0 | - | 4.62 | 53,179 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 68,540 |
| Official European Union Languages | 0 | - | 4.97 | 236,395 |
| European Countries in their Native Language | 0 | - | 4.99 | 156,620 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,936 |
| Word Scramble - European Countries | 0 | - | 4.70 | 140,930 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,538 |
| 7 Deadly Sins | 0 | - | 4.88 | 394,422 |
| Category Elimination - Cities | 0 | - | 4.25 | 40,838 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 26,839 |
| Name a Valid Answer - United States #1 | 0 | - | 4.61 | 93,396 |
| Celtic Nations | 0 | - | 4.69 | 46,800 |
| European Geography By Letter - A | 0 | - | 4.56 | 132,326 |
| European Geography By Letter - B #1 | 0 | - | 4.67 | 110,837 |
| European Geography By Letter - C | 0 | - | 4.46 | 111,773 |
| European Geography By Letter - D | 0 | - | 4.50 | 106,644 |
| European Geography By Letter - L | 0 | - | 4.52 | 112,166 |
| European Geography By Letter - M | 0 | - | 4.61 | 128,796 |
| European Geography By Letter - N | 0 | - | 4.44 | 99,628 |
| European Geography By Letter - R | 0 | - | 4.42 | 92,592 |
| European Geography By Letter - V | 0 | - | 4.43 | 91,994 |
| European Geography By Letter - T | 0 | - | 4.41 | 81,253 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 70,965 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,587 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 69,916 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 60,958 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 99,559 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 86,798 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,609 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 167,619 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,079 |
| Four Letter European Geography #1 | 0 | - | 4.44 | 27,101 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 19,583 |
| Famous Germans | 0 | - | 4.50 | 54,570 |
| German Groups of Things | 0 | - | 4.46 | 38,294 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,022 |
| Famous Italians by Clue | 0 | - | 4.45 | 88,269 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,031 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 349,318 |
| Planets of the Solar System Quiz | 0 | - | 4.93 | 1,090,024 |
| Name a Valid Capital #1 | 0 | - | 4.96 | 89,906 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 48,980 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,279 |
| U.S. Citizenship Test Questions | 0 | - | 4.83 | 238,215 |
| Monarchies of Europe | 0 | - | 4.90 | 97,239 |
| Federal Subjects of Russia | 0 | - | 4.94 | 143,678 |
| States of Germany | 0 | - | 4.96 | 149,857 |
| Germany Immigration by Country | 0 | - | 4.84 | 79,935 |
| Regions of Italy | 0 | - | 4.92 | 74,618 |
| Netherlands Immigration by Country | 0 | - | 4.94 | 43,754 |
| Regions of Spain Quiz | 0 | - | 4.90 | 112,176 |
| Cantons of Switzerland | 0 | - | 4.98 | 50,068 |
| Name a Valid English City | 0 | - | 4.19 | 16,623 |
| Champions League Winners | 0 | - | 4.92 | 995,351 |
| Asian Geography By Letter - B | 0 | - | 4.85 | 65,941 |
| Monarchies of Asia | 0 | - | 4.97 | 70,550 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,395 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,058 |
| Marvel Cinematic Universe - All Movies | 0 | - | 4.89 | 332,180 |
| Top Five Countries by Random Categories | 0 | - | 4.95 | 135,999 |
| Random Name a Valid Country | 0 | - | 4.99 | 203,073 |
| Name a Valid Island Country | 0 | - | 4.96 | 113,960 |
| Countries of Africa - One Minute Sprint | 0 | - | 4.42 | 319,227 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,105 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,493 |
| United Kingdom A-Z | 0 | - | 4.53 | 87,173 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,395 |
| Name a Valid African Country | 0 | - | 4.98 | 152,843 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,021 |
| Two Letter U.S. State Abbreviations | 0 | - | 4.19 | 742,857 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 173,063 |
| U.S. Cabinet Departments | 0 | - | 4.86 | 72,492 |
| European Geography By Letter - E | 0 | - | 4.23 | 112,159 |
| European Geography By Letter - F | 0 | - | 4.17 | 91,403 |
| European Geography By Letter - H | 0 | - | 4.30 | 94,845 |
| European Geography By Letter - G | 0 | - | 4.25 | 101,222 |
| European Geography By Letter - I | 0 | - | 4.10 | 94,439 |
| European Geography By Letter - K | 0 | - | 4.14 | 69,115 |
| European Geography By Letter - O | 0 | - | 4.28 | 61,890 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,271 |
| Europe Geography Quiz #3 | 0 | - | 4.34 | 63,379 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 50,480 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,183 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,052 |
| European Geography A-Z | 0 | - | 4.28 | 48,969 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,405 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,076 |
| Departments of France | 0 | - | 4.93 | 52,702 |
| Word Chain - France | 0 | - | 4.38 | 42,570 |
| The Mafia Quiz | 0 | - | 4.46 | 23,194 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,347 |
| History of The Netherlands | 0 | - | 4.46 | 17,299 |
| British Groups of Things | 0 | - | 4.25 | 82,659 |
| British Acronyms | 0 | - | 4.39 | 45,604 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,942 |
| British Monopoly Board | 0 | - | 4.52 | 41,023 |
| Name the English Monarchs | 0 | - | 4.92 | 497,525 |
| England or Wales? | 0 | - | 4.94 | 45,287 |
| All UEFA Champions League Teams Ever | 0 | - | 4.84 | 128,326 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,459 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,965 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,054 |
| Deadliest U.S. Wars | 0 | - | 4.89 | 189,158 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,428 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.78 | 41,596 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 112,853 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,758 |
| Slavic Languages | 0 | - | 4.67 | 53,940 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,495 |
| France A-Z | 0 | - | 4.16 | 38,044 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 641,374 |
| Name that Greek Letter | 0 | - | 4.94 | 321,476 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,419 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,230 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 41,904 |
| Word Scramble - Asian Countries | 0 | - | 4.49 | 108,078 |
| Countries of Asia - One Minute Sprint | 0 | - | 4.41 | 273,009 |
| Literary Quotes #1 | 0 | - | 4.49 | 33,362 |
| Star Wars Quotes | 0 | - | 4.84 | 173,304 |
| Random Countries Hidden in the World Map | 0 | - | 4.81 | 111,541 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,845 |
| Name a Country A-Z | 0 | - | 5.00 | 240,113 |
| Name a Disney/Pixar Movie A-Z | 0 | - | 4.89 | 50,335 |
| Name a Valid Country A-Z | 0 | - | 4.97 | 119,940 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 266,378 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 123,797 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 124,573 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 61,518 |
| Top European Languages on a Map | 0 | - | 4.77 | 131,033 |
| History of Russia Quiz | 0 | - | 4.49 | 31,776 |
| Word Chain - Russia | 0 | - | 4.33 | 15,683 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,550 |
| Famous French People | 0 | - | 4.12 | 27,892 |
| Word Chain - Germany | 0 | - | 4.31 | 22,471 |
| Ancient Greece A-Z | 0 | - | 4.60 | 22,974 |
| The Trojan War | 0 | - | 4.83 | 39,400 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 110,400 |
| Famous Irish People | 0 | - | 4.05 | 45,849 |
| History of Italy | 0 | - | 4.55 | 31,801 |
| Word Chain - Italy | 0 | - | 4.07 | 23,081 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,106 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 83,990 |
| Roman Emperors | 0 | - | 4.95 | 118,341 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,468 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,277 |
| Famous Spaniards Quiz | 0 | - | 4.24 | 11,540 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 76,965 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,233 |
| The British Royal Family - Modern Times | 0 | - | 4.16 | 21,454 |
| People on Money - England | 0 | - | 4.29 | 16,559 |
| English Monarchs in Order by First Letter | 0 | - | 4.38 | 31,293 |
| London A-Z | 0 | - | 4.10 | 40,626 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 51,912 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 276,982 |
| Famous Lines of Poetry #1 | 0 | - | 4.55 | 34,129 |
| Famous People from Africa | 0 | - | 4.45 | 10,852 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 32,789 |
| Word Chain - Africa | 0 | - | 4.47 | 31,432 |
| Major non-NATO U.S. Allies | 0 | - | 4.52 | 51,699 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,340 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,419 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 34,722 |
| Capitals of French Regions | 0 | - | 4.45 | 15,980 |
| Regions of France | 0 | - | 4.78 | 119,090 |
| France Immigration by Country | 0 | - | 4.72 | 75,926 |
| Kings of France Quiz | 0 | - | 4.20 | 32,541 |
| Capitals of German States | 0 | - | 4.74 | 28,799 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,082 |
| Germany True or False? | 0 | - | 4.61 | 48,512 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,421 |
| Olympian Gods Quiz | 0 | - | 4.96 | 495,190 |
| Ancient Greek Words | 0 | - | 4.92 | 110,595 |
| Provinces of the Netherlands | 0 | - | 4.80 | 40,740 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 101,884 |
| Name Every Beatles Song | 0 | - | 4.97 | 233,888 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 290,229 |
| Famous Scottish People | 0 | - | 4.22 | 18,321 |
