| Count to 10 in Europe: Pro | 0 | - | 4.81 | 60,908 |
| Official European Union Languages | 0 | - | 4.98 | 200,293 |
| European Countries in their Native Language | 0 | - | 4.99 | 143,885 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 457,095 |
| Slavic Languages | 0 | - | 4.58 | 48,713 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 386,038 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,587 |
| Europe Geography Decoder | 0 | - | 4.89 | 63,230 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,033 |
| Top European Languages on a Map | 0 | - | 4.76 | 118,088 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,084 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,841 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 60,624 |
| Countries where Arabic is an Official Language | 0 | - | 4.84 | 52,042 |
| Top African Languages on a Map | 0 | - | 4.91 | 52,896 |
| Third Most Common Language by U.S. State | 0 | - | 4.91 | 106,981 |
| Most Spoken Languages in Canada | 0 | - | 4.82 | 46,984 |
| Celtic Nations | 0 | - | 4.76 | 44,639 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 79,624 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 285,261 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 115,724 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,602 |
| Eastern Europe Map Quiz | 0 | - | 4.89 | 115,642 |
| Slavic Countries | 0 | - | 4.96 | 100,425 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,320 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,767 |
| Regions of Spain Quiz | 0 | - | 4.85 | 94,864 |
| Cantons of Switzerland | 0 | - | 4.96 | 40,262 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 269,849 |
| Champions League Winners | 0 | - | 4.91 | 852,415 |
| Catholic Countries in Europe | 0 | - | 4.87 | 83,647 |
| Category Elimination - European Geography #3 | 0 | - | 4.84 | 65,632 |
| Federal Subjects of Russia | 0 | - | 4.95 | 112,361 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,028 |
| States of Germany | 0 | - | 4.93 | 123,526 |
| Germany Immigration by Country | 0 | - | 4.90 | 69,674 |
| Counties of Ireland | 0 | - | 4.89 | 159,082 |
| Regions of Italy | 0 | - | 4.88 | 60,373 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,326 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,816 |
| History of Russia Quiz | 0 | - | 4.48 | 29,857 |
| Geography of Russia | 0 | - | 4.54 | 20,165 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,473 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,596 |
| England or Wales? | 0 | - | 4.93 | 40,220 |
| All Champions League Teams Ever | 0 | - | 4.89 | 104,379 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 200,633 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 246,814 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 142,710 |
| Word Chain - Russia | 0 | - | 4.41 | 14,811 |
| Spanish Immigration by Country | 0 | - | 4.63 | 51,837 |
| Languages of Spain | 0 | - | 4.34 | 21,324 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,406 |
| Word Scramble - European Countries | 0 | - | 4.72 | 113,831 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 85,409 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 56,316 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 584,088 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,683 |
| Roman Emperors | 0 | - | 4.95 | 95,832 |
| Geography of the Dutch Empire | 0 | - | 4.71 | 32,424 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 74,650 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 255,242 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 244,663 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 163,606 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,043 |
| The Trojan War | 0 | - | 4.81 | 35,929 |
| Name that Greek Letter | 0 | - | 4.94 | 295,820 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 85,344 |
| Italy Multiple Choice | 0 | - | 4.74 | 93,794 |
| Provinces of the Netherlands | 0 | - | 4.61 | 33,306 |
| 100 Greatest Britons Quiz | 0 | - | 4.44 | 46,012 |
| British Acronyms | 0 | - | 4.42 | 43,359 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 73,394 |
| Beatles Songs Quiz | 0 | - | 4.95 | 207,200 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 273,693 |
| European Geography By Letter - A | 0 | - | 4.51 | 124,388 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 103,561 |
| European Geography By Letter - C | 0 | - | 4.43 | 104,927 |
| European Geography By Letter - D | 0 | - | 4.52 | 99,527 |
| European Geography By Letter - L | 0 | - | 4.51 | 104,920 |
| European Geography By Letter - M | 0 | - | 4.55 | 114,412 |
| European Geography By Letter - P | 0 | - | 4.79 | 89,534 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,416 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,461 |
| Europe Map Quiz | 0 | - | 5.00 | 4,290,044 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,060 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,534 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,202 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 57,868 |
| European Geography By Letter - S #1 | 0 | - | 4.57 | 93,910 |
| European Geography By Letter - B #2 | 0 | - | 4.72 | 62,050 |
| Regions of France | 0 | - | 4.63 | 100,364 |
| France Immigration by Country | 0 | - | 4.80 | 68,917 |
| German Groups of Things | 0 | - | 4.43 | 35,958 |
| Capitals of German States | 0 | - | 4.71 | 27,140 |
| Chancellors of Germany, 1949–present | 0 | - | 4.53 | 15,415 |
| Germany True or False? | 0 | - | 4.63 | 44,444 |
| Largest Islands of Greece | 0 | - | 4.57 | 39,669 |
| Olympian Gods Quiz | 0 | - | 4.96 | 457,104 |
| Ancient Greek Words | 0 | - | 4.90 | 97,376 |
| Capitals of Italian Regions | 0 | - | 4.52 | 26,115 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,858 |
| Top World Languages | 0 | - | 4.91 | 706,977 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 399,308 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,637 |
| The Vikings! | 0 | - | 4.44 | 27,105 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,265 |
| The Portuguese Empire | 0 | - | 4.54 | 11,336 |
| British Words Quiz #2 | 0 | - | 4.04 | 106,879 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,858 |
| Champions League Top 4 | 0 | - | 4.79 | 104,970 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,344,230 |
| Asia Map Quiz | 0 | - | 4.99 | 784,687 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 30,518 |
| Africa Map Quiz | 0 | - | 5.00 | 1,938,214 |
| Official Languages of South Africa | 0 | - | 4.54 | 24,907 |
| Oceania Map Quiz | 0 | - | 4.98 | 567,622 |
| Australian Capitals | 0 | - | 4.92 | 60,625 |
| European Physical Geography | 0 | - | 4.19 | 31,914 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,662 |
| History of Austria | 0 | - | 4.68 | 16,388 |
| Geography of the French Empire | 0 | - | 4.49 | 25,405 |
| The French Revolution | 0 | - | 4.45 | 21,912 |
| France Multiple Choice | 0 | - | 4.40 | 38,550 |
| History of France Quiz | 0 | - | 4.55 | 39,671 |
| History of Ireland Quiz | 0 | - | 4.44 | 18,899 |
| History of Italy | 0 | - | 4.49 | 29,777 |
| Countries by Official Language | 0 | - | 4.96 | 170,580 |
| Places in their Native Language #1 | 0 | - | 4.86 | 210,375 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,910 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,012 |
| Countries in their Native Language | 0 | - | 4.98 | 178,185 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,261 |
| History of The Netherlands | 0 | - | 4.42 | 15,750 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,825 |
| Canary Islands | 0 | - | 4.60 | 16,557 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 51,019 |
| Switzerland Immigration by Country | 0 | - | 4.79 | 20,952 |
| British Spellings Quiz | 0 | - | 4.04 | 94,649 |
| British Groups of Things | 0 | - | 4.26 | 80,126 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,732 |
| British Monopoly Board | 0 | - | 4.51 | 39,237 |
| South and Central Asia Map Quiz | 0 | - | 4.92 | 79,787 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,280,789 |
| Countries of Africa | 0 | - | 5.00 | 2,165,429 |
| African East Coast | 0 | - | 4.97 | 84,128 |
| Western Africa Map Quiz | 0 | - | 4.97 | 60,858 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 40,262 |
| Australia Map Quiz | 0 | - | 4.95 | 319,522 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,085 |
| United States Map Quiz | 0 | - | 4.98 | 3,900,677 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,310 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,628 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,863 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 335,662 |
| European Geography By Letter - E | 0 | - | 4.20 | 105,434 |
| European Geography By Letter - F | 0 | - | 4.15 | 85,279 |
| European Geography By Letter - H | 0 | - | 4.30 | 88,867 |
| European Geography By Letter - G | 0 | - | 4.24 | 95,089 |
| European Geography By Letter - I | 0 | - | 4.09 | 88,775 |
| European Geography By Letter - K | 0 | - | 4.16 | 64,488 |
| European Geography By Letter - O | 0 | - | 4.27 | 57,745 |
| European Geography By Letter - R | 0 | - | 4.39 | 87,532 |
| European Geography by Letter - W | 0 | - | 4.21 | 78,265 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,895 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 59,943 |
| European Geography By Letter - S #2 | 0 | - | 4.16 | 46,751 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 92,123 |
| European Geography A-Z | 0 | - | 4.40 | 45,385 |
| Country Codes of Europe | 0 | - | 3.34 | 12,739 |
| The Only European Country ... | 0 | - | 4.94 | 178,310 |
| Embarrassing Chapters in Russian History | 0 | - | 3.80 | 19,329 |
| Austria... or Australia? | 0 | - | 4.79 | 97,974 |
| Capitals of French Regions | 0 | - | 4.40 | 14,760 |
| Presidents of France | 0 | - | 4.23 | 20,167 |
| Word Chain - France | 0 | - | 4.38 | 39,980 |
| Famous Germans | 0 | - | 4.39 | 35,182 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,378 |
| Figures from Greek Mythology | 0 | - | 4.92 | 169,382 |
| Famous Italians | 0 | - | 4.40 | 66,200 |
| Italian Foods | 0 | - | 4.25 | 64,161 |
| The Mafia Quiz | 0 | - | 4.47 | 21,584 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,527 |
| Every Country in its Official/Native Language | 0 | - | 4.96 | 17,377 |
| German-Speaking Countries | 0 | - | 4.88 | 117,503 |
| French Food Words | 0 | - | 4.81 | 175,074 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,381 |
| Geography of the Roman Empire | 0 | - | 4.55 | 48,483 |
| The Life of Julius Caesar | 0 | - | 4.46 | 32,099 |
| Roman Names for Places | 0 | - | 4.67 | 41,481 |
| Byzantine History | 0 | - | 4.87 | 26,226 |
| Greenland... or Iceland? | 0 | - | 4.49 | 41,744 |
| Most Common Last Names in Sweden | 0 | - | 4.41 | 14,084 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,604 |
| History of Spain Quiz | 0 | - | 4.33 | 19,566 |
| Geography of Spain | 0 | - | 4.52 | 20,342 |
| British Words Quiz #1 | 0 | - | 3.78 | 236,097 |
| British Foods | 0 | - | 3.85 | 47,038 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,758 |
| British and American Word Differences | 0 | - | 2.66 | 44,396 |
