| European Countries by First 2 Letters | 0 | - | 4.95 | 531,030 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,581 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 277,761 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,016 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 215,100 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,938 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,424 |
| Official European Union Languages | 0 | - | 4.97 | 239,141 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,258 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 429,608 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,453 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,300 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,159 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,946 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,331,944 |
| Name Every Beatles Song | 0 | - | 4.97 | 237,400 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,211 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 358,981 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,451 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,401 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,054 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,348 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,322 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,741 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 311,732 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.98 | 173,994 |
| German Groups of Things | 0 | - | 4.46 | 38,557 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,535 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,256 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,533 |
| Champions League Winners | 0 | - | 4.92 | 1,011,203 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,370 |
| Celtic Nations | 0 | - | 4.69 | 47,022 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,234 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,489 |
| European Geography By Letter - B #2 | 0 | - | 4.86 | 87,551 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,485 |
| Federal Subjects of Russia | 0 | - | 4.95 | 148,332 |
| States of Germany | 0 | - | 4.95 | 153,611 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,376 |
| Regions of Italy | 0 | - | 4.92 | 76,445 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,525 |
| Regions of Spain Quiz | 0 | - | 4.90 | 114,710 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,498 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,774 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,692 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,446 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,033 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,779 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,641 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,696 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,549 |
| European Geographic Groups of Four | 0 | - | 4.58 | 17,376 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 262,850 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,277 |
| Departments of France | 0 | - | 4.93 | 54,644 |
| Word Chain - France | 0 | - | 4.38 | 42,868 |
| Italian Foods | 0 | - | 4.30 | 73,019 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,645 |
| British Groups of Things | 0 | - | 4.25 | 82,935 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,067 |
| England or Wales? | 0 | - | 4.94 | 45,833 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,276 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,512 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,247 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,364 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,745 |
| Name a Valid African Country | 0 | - | 4.98 | 154,545 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 297,030 |
| Countries that Beat the United States | 0 | - | 4.93 | 167,987 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,644 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,669 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,680 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,969 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 115,901 |
| Slavic Languages | 0 | - | 4.68 | 54,527 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,179 |
| The Trojan War | 0 | - | 4.83 | 39,864 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 649,708 |
| Name that Greek Letter | 0 | - | 4.93 | 324,376 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,438 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,685 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,164 |
| Roman Emperors | 0 | - | 4.95 | 120,600 |
| Countries that Beat Portugal | 0 | - | 4.86 | 59,609 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,541 |
| Most Common First Names in Spain | 0 | - | 4.27 | 49,486 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,837 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,057 |
| Wonderwall Lyrics | 0 | - | 4.25 | 73,907 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 46,979 |
| A Quiz About The Beatles | 0 | - | 4.56 | 48,185 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 20,291 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,170 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,288 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,477 |
| History of Russia Quiz | 0 | - | 4.47 | 31,972 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,798 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,289 |
| Word Chain - Germany | 0 | - | 4.31 | 22,642 |
| Olympian Gods Quiz | 0 | - | 4.96 | 502,334 |
| Ancient Greek Words | 0 | - | 4.93 | 112,063 |
| History of Italy | 0 | - | 4.55 | 32,087 |
| Word Chain - Italy | 0 | - | 4.07 | 23,200 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,067 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,752 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 15,446 |
| Countries that Beat Iceland | 0 | - | 4.81 | 43,041 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,329 |
| Geography of Spain | 0 | - | 4.59 | 22,128 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,370 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,381 |
| Name a Valid English City | 0 | - | 4.19 | 16,768 |
| Imagine Lyrics | 0 | - | 4.53 | 43,447 |
| Beatles Songs by Synonyms | 0 | - | 4.74 | 40,894 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,114 |
| European Geography By Letter - B #1 | 0 | - | 4.69 | 120,517 |
| European Geography By Letter - C | 0 | - | 4.46 | 114,894 |
| European Geography By Letter - D | 0 | - | 4.50 | 109,445 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,116 |
| European Geography By Letter - M | 0 | - | 4.67 | 131,504 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,294 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,111 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,361 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,949 |
| Europe Map Quiz | 0 | - | 5.00 | 4,775,052 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,972 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,587 |
| Capitals of French Regions | 0 | - | 4.45 | 16,129 |
| Regions of France | 0 | - | 4.70 | 121,457 |
| France Immigration by Country | 0 | - | 4.70 | 76,737 |
| Famous Germans | 0 | - | 4.50 | 55,585 |
| Capitals of German States | 0 | - | 4.74 | 29,008 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,428 |
| Germany True or False? | 0 | - | 4.61 | 48,921 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,211 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,926 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 438,442 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,333 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,568 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,367 |
| British to American Food Translation | 0 | - | 3.38 | 52,000 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,504 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,745 |
| Beatles Lyrics First Names | 0 | - | 4.34 | 39,859 |
| Elton John Quiz | 0 | - | 4.49 | 18,500 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,586 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,644 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,313 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,957 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,022 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,787 |
| Most Popular NBA Jerseys | 0 | - | 4.38 | 838,854 |
| Oceania Map Quiz | 0 | - | 4.98 | 656,203 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,097 |
| Australian Capitals | 0 | - | 4.92 | 62,780 |
| Word Chain - Australia | 0 | - | 4.38 | 38,190 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,813 |
| South American Geography Quiz #1 | 0 | - | 4.62 | 32,742 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,631 |
| United States Map Quiz | 0 | - | 4.98 | 4,165,188 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,279 |
| European Geography By Letter - E | 0 | - | 4.23 | 114,356 |
| European Geography By Letter - F | 0 | - | 4.17 | 93,702 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,556 |
| European Geography By Letter - G | 0 | - | 4.27 | 103,237 |
| European Geography By Letter - I | 0 | - | 4.09 | 95,985 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,612 |
| European Geography By Letter - O | 0 | - | 4.29 | 63,094 |
| European Geography by Letter - W | 0 | - | 4.21 | 83,220 |
| European Physical Geography | 0 | - | 4.26 | 33,559 |
| European Geography By Letter - S #2 | 0 | - | 4.20 | 51,499 |
| European Geography A-Z | 0 | - | 4.29 | 49,393 |
| Geography of Russia | 0 | - | 4.57 | 21,560 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,040 |
| History of Austria | 0 | - | 4.70 | 17,928 |
| Austria... or Australia? | 0 | - | 4.68 | 104,578 |
| Famous French People | 0 | - | 4.07 | 35,929 |
| French Foods | 0 | - | 4.00 | 27,738 |
| Geography of the French Empire | 0 | - | 4.45 | 27,176 |
| The French Revolution | 0 | - | 4.47 | 24,083 |
| France Multiple Choice | 0 | - | 4.39 | 40,787 |
| History of France | 0 | - | 4.61 | 57,361 |
| Ancient Greek Trivia | 0 | - | 4.62 | 67,123 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,975 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,012 |
| Famous Italian-Americans | 0 | - | 4.15 | 14,525 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,482 |
| The Mafia Quiz | 0 | - | 4.46 | 23,394 |
| Byzantine History | 0 | - | 4.91 | 28,952 |
| Byzantine Emperors | 0 | - | 4.92 | 14,428 |
| History of The Netherlands | 0 | - | 4.46 | 17,503 |
| The Vikings! | 0 | - | 4.46 | 28,378 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,253 |
| The Portuguese Empire | 0 | - | 4.58 | 12,088 |
| Canary Islands | 0 | - | 4.62 | 17,502 |
| Real Madrid 2010s Starting XI | 0 | - | 4.90 | 68,269 |
| Switzerland Immigration by Country | 0 | - | 4.69 | 29,876 |
| American to British Word Translation | 0 | - | 4.14 | 139,419 |
| British Spellings | 0 | - | 4.06 | 99,531 |
