| European Countries by First 2 Letters | 0 | - | 4.96 | 509,763 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 217,935 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 263,330 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 155,771 |
| Save Europeans by Guessing Countries | 0 | - | 4.87 | 193,096 |
| French Geography Quiz #1 | 0 | - | 4.87 | 33,126 |
| Count to 10 in Europe: Pro | 0 | - | 4.85 | 65,211 |
| Official European Union Languages | 0 | - | 4.98 | 228,170 |
| European Countries in their Native Language | 0 | - | 4.99 | 151,255 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 409,655 |
| Europe Geography Decoder | 0 | - | 4.85 | 67,092 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.84 | 40,712 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,175 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,270,204 |
| Beatles Songs Quiz | 0 | - | 4.96 | 223,412 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 283,779 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 22,360 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 69,459 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 70,012 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 68,543 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 59,747 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.84 | 84,044 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 298,803 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 144,618 |
| German Groups of Things | 0 | - | 4.46 | 37,443 |
| Germany Multiple Choice | 0 | - | 4.83 | 52,075 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 97,927 |
| Champions League Winners | 0 | - | 4.91 | 949,012 |
| Africa Geography Quiz #1 | 0 | - | 4.92 | 47,810 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 106,443 |
| Celtic Nations | 0 | - | 4.74 | 46,025 |
| Catholic Countries in Europe | 0 | - | 4.83 | 89,944 |
| European Geography By Letter - B #2 | 0 | - | 4.81 | 65,711 |
| Category Elimination - European Geography #3 | 0 | - | 4.84 | 74,014 |
| Federal Subjects of Russia | 0 | - | 4.93 | 129,827 |
| States of Germany | 0 | - | 4.94 | 138,276 |
| Germany Immigration by Country | 0 | - | 4.86 | 75,688 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 29,379 |
| Counties of Ireland | 0 | - | 4.90 | 176,180 |
| Regions of Italy | 0 | - | 4.91 | 68,130 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 35,065 |
| Regions of Spain Quiz | 0 | - | 4.89 | 104,768 |
| Cantons of Switzerland | 0 | - | 4.97 | 45,465 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,567 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.96 | 310,242 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 129,390 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 86,138 |
| Name a Valid African Country | 0 | - | 4.98 | 134,213 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.95 | 166,498 |
| Europe Geography Quiz #3 | 0 | - | 4.33 | 62,051 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,401 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 61,379 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 83,480 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 235,128 |
| Name a Valid European Country #2 | 0 | - | 4.92 | 92,265 |
| Departments of France | 0 | - | 4.88 | 44,824 |
| Word Chain - France | 0 | - | 4.37 | 41,619 |
| Italian Foods | 0 | - | 4.30 | 68,991 |
| Countries Surrounding Rome | 0 | - | 4.96 | 48,177 |
| British Groups of Things | 0 | - | 4.25 | 81,946 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,428 |
| England or Wales? | 0 | - | 4.94 | 43,306 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 120,985 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.89 | 101,951 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 90,071 |
| Name a Valid Asian Country | 0 | - | 4.98 | 115,176 |
| #1 Hits of the 2010s | 0 | - | 4.41 | 283,166 |
| Countries that Beat the United States | 0 | - | 4.93 | 157,934 |
| Countries that Beat Canada | 0 | - | 4.90 | 83,699 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,250 |
| Word Scramble - European Countries | 0 | - | 4.74 | 135,669 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 103,791 |
| Slavic Languages | 0 | - | 4.65 | 51,801 |
| Countries that Beat Russia | 0 | - | 4.83 | 77,678 |
| The Trojan War | 0 | - | 4.81 | 37,837 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 615,496 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.83 | 102,913 |
| Capitals of Italian Regions | 0 | - | 4.61 | 35,592 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 75,144 |
| Roman Emperors | 0 | - | 4.96 | 109,610 |
| Spanish Immigration by Country | 0 | - | 4.63 | 54,088 |
| Most Common First Names in Spain | 0 | - | 4.26 | 44,734 |
| Most Common Surnames in the UK | 0 | - | 4.20 | 68,066 |
| Fictional Characters from Great Britain | 0 | - | 4.13 | 31,735 |
| Wonderwall Lyrics | 0 | - | 4.24 | 71,421 |
| Best-Selling British Musical Acts | 0 | - | 4.49 | 45,564 |
| A Quiz About The Beatles | 0 | - | 4.55 | 45,718 |
| Countries that Beat Indonesia | 0 | - | 4.85 | 51,701 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 25,250 |
| Top European Languages on a Map | 0 | - | 4.78 | 126,100 |
| Russia Multiple Choice | 0 | - | 4.57 | 39,602 |
| French Geography Quiz #2 | 0 | - | 4.62 | 22,366 |
| Word Chain - Germany | 0 | - | 4.32 | 21,957 |
| Olympian Gods Quiz | 0 | - | 4.96 | 471,866 |
| Name that Greek Letter | 0 | - | 4.94 | 311,230 |
| Ancient Greek Words | 0 | - | 4.92 | 105,464 |
| Word Chain - Italy | 0 | - | 4.07 | 22,692 |
| Italy Multiple Choice | 0 | - | 4.74 | 99,628 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,582 |
| Most Common Last Names in Sweden | 0 | - | 4.49 | 14,770 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,192 |
| Geography of Spain | 0 | - | 4.58 | 21,257 |
| Word Chain - United Kingdom | 0 | - | 4.06 | 28,786 |
| Members of the British Royal Family | 0 | - | 4.09 | 112,052 |
| Name a Valid English City | 0 | - | 4.19 | 16,101 |
| Imagine Lyrics | 0 | - | 4.49 | 41,780 |
| Beatles Songs by Synonyms | 0 | - | 4.70 | 38,449 |
| Africa Geography Quiz #2 | 0 | - | 4.58 | 32,134 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 258,127 |
| European Geography By Letter - A | 0 | - | 4.61 | 128,757 |
| European Geography By Letter - B #1 | 0 | - | 4.73 | 107,519 |
| European Geography By Letter - C | 0 | - | 4.46 | 108,787 |
| European Geography By Letter - D | 0 | - | 4.51 | 103,541 |
| European Geography By Letter - L | 0 | - | 4.52 | 108,982 |
| European Geography By Letter - M | 0 | - | 4.53 | 118,074 |
| European Geography By Letter - P | 0 | - | 4.79 | 93,354 |
| European Geography By Letter - N | 0 | - | 4.43 | 96,797 |
| European Geography By Letter - R | 0 | - | 4.41 | 90,226 |
| European Geography By Letter - V | 0 | - | 4.46 | 89,579 |
| Europe Map Quiz | 0 | - | 5.00 | 4,557,005 |
| European Geography By Letter - S #1 | 0 | - | 4.62 | 96,883 |
| Four Letter European Geography #1 | 0 | - | 4.48 | 24,345 |
| Four Letter European Geography #2 | 0 | - | 4.58 | 17,119 |
| Capitals of French Regions | 0 | - | 4.42 | 15,501 |
| Regions of France | 0 | - | 4.70 | 111,320 |
| France Immigration by Country | 0 | - | 4.77 | 73,352 |
| Famous Germans | 0 | - | 4.44 | 40,053 |
| Capitals of German States | 0 | - | 4.73 | 28,186 |
| Chancellors of Germany, 1949–present | 0 | - | 4.57 | 22,036 |
| Germany True or False? | 0 | - | 4.63 | 46,867 |
| Largest Islands of Greece | 0 | - | 4.58 | 44,500 |
| Can You Name All Of One Direction's Songs? | 0 | - | 4.50 | 93,389 |
| Famous Italians | 0 | - | 4.40 | 70,649 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 418,584 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,828 |
| Provinces of the Netherlands | 0 | - | 4.75 | 37,250 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,178 |
| British to American Food Translation. | 0 | - | 3.40 | 51,294 |
| Beatles Lyrics First Names | 0 | - | 4.35 | 33,293 |
| Asia Geography Quiz #1 | 0 | - | 4.77 | 52,333 |
| Asia Geography Quiz #2 | 0 | - | 4.59 | 47,163 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 268,424 |
| Most Popular NBA Jerseys | 0 | - | 4.37 | 808,956 |
| Africa Map Quiz | 0 | - | 5.00 | 2,035,661 |
| Oceania Map Quiz | 0 | - | 4.98 | 605,670 |
| Oceania Geography Quiz | 0 | - | 4.55 | 21,520 |
| Australian Capitals | 0 | - | 4.92 | 61,881 |
| Word Chain - Australia | 0 | - | 4.36 | 37,355 |
| Hispanic Last Names in the U.S. | 0 | - | 4.30 | 53,889 |
| South American Geography Quiz #2 | 0 | - | 4.64 | 38,305 |
| South American Geography Quiz #1 | 0 | - | 4.74 | 31,738 |
| U.S. State Nicknames Quiz | 0 | - | 4.49 | 48,503 |
| United States Map Quiz | 0 | - | 4.98 | 4,054,876 |
| European Geography By Letter - E | 0 | - | 4.22 | 109,226 |
| European Geography By Letter - F | 0 | - | 4.18 | 88,846 |
| European Geography By Letter - H | 0 | - | 4.29 | 92,358 |
| European Geography By Letter - G | 0 | - | 4.26 | 98,566 |
| European Geography By Letter - I | 0 | - | 4.11 | 92,051 |
| European Geography By Letter - K | 0 | - | 4.15 | 66,908 |
| European Geography By Letter - O | 0 | - | 4.29 | 59,920 |
| European Geography by Letter - W | 0 | - | 4.21 | 80,655 |
| European Geography By Letter - T | 0 | - | 4.40 | 73,148 |
| European Physical Geography | 0 | - | 4.24 | 32,791 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 48,744 |
| European Geography A-Z | 0 | - | 4.31 | 47,535 |
| History of Russia Quiz | 0 | - | 4.48 | 31,111 |
| Geography of Russia | 0 | - | 4.56 | 20,902 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,873 |
| History of Austria | 0 | - | 4.69 | 17,161 |
| Austria... or Australia? | 0 | - | 4.74 | 101,583 |
| French Foods | 0 | - | 4.00 | 27,101 |
| Geography of the French Empire | 0 | - | 4.51 | 26,200 |
| The French Revolution | 0 | - | 4.45 | 22,875 |
| France Multiple Choice | 0 | - | 4.37 | 39,948 |
| History of France Quiz | 0 | - | 4.56 | 41,712 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,827 |
| Ancient Greek Trivia | 0 | - | 4.56 | 65,325 |
| Figures from Greek Mythology | 0 | - | 4.90 | 176,097 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,274 |
| Most Popular Types of Pasta | 0 | - | 3.93 | 30,406 |
| Famous Italian-Americans | 0 | - | 4.17 | 7,537 |
| History of Italy | 0 | - | 4.53 | 31,061 |
| Countries Italy Declared War On | 0 | - | 4.75 | 41,848 |
| The Mafia Quiz | 0 | - | 4.46 | 22,575 |
| Byzantine History | 0 | - | 4.88 | 27,567 |
| History of The Netherlands | 0 | - | 4.45 | 16,580 |
| Famous Nordic People | 0 | - | 4.41 | 10,967 |
| The Vikings! | 0 | - | 4.46 | 27,792 |
| Sweden Immigration by Country | 0 | - | 4.64 | 44,942 |
| The Portuguese Empire | 0 | - | 4.54 | 11,705 |
| Canary Islands | 0 | - | 4.61 | 17,030 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 60,450 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 26,228 |
| British Spellings Quiz | 0 | - | 4.07 | 97,716 |
| British Acronyms | 0 | - | 4.39 | 44,744 |
| Languages of the United Kingdom | 0 | - | 4.13 | 39,812 |
| United Kingdom A-Z | 0 | - | 4.53 | 84,701 |
| British Monopoly Board | 0 | - | 4.51 | 40,331 |
| English Monarchs in Order by First Letter | 0 | - | 4.41 | 28,629 |
| Geography of Scotland | 0 | - | 4.63 | 20,666 |
