| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,110 |
| Official European Union Languages | 0 | - | 4.97 | 238,469 |
| European Countries in their Native Language | 0 | - | 4.99 | 157,819 |
| Slavic Languages | 0 | - | 4.68 | 54,353 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 529,437 |
| Save Europeans by Guessing Countries | 0 | - | 4.83 | 213,312 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,131 |
| Europe Geography Decoder | 0 | - | 4.86 | 69,978 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,059 |
| History of Russia Quiz | 0 | - | 4.47 | 31,913 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,723 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 41,829 |
| Top African Languages on a Map | 0 | - | 4.92 | 73,993 |
| Third Most Common Language by U.S. State | 0 | - | 4.87 | 113,724 |
| Most Spoken Languages in Canada | 0 | - | 4.91 | 55,137 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.82 | 87,354 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,441 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 171,677 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 89,256 |
| Eastern Europe Map Quiz | 0 | - | 4.91 | 128,172 |
| Slavic Countries | 0 | - | 4.96 | 111,635 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,345 |
| States of the German Confederation in 1848 | 0 | - | 4.89 | 31,995 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 355,831 |
| Top Asian Languages on a Map | 0 | - | 4.95 | 71,410 |
| Countries where Arabic is an Official Language | 0 | - | 4.85 | 72,511 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,383 |
| Celtic Nations | 0 | - | 4.69 | 46,939 |
| Champions League Winners | 0 | - | 4.92 | 1,006,449 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,110 |
| European Geography By Letter - B #2 | 0 | - | 4.85 | 78,470 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 80,954 |
| Federal Subjects of Russia | 0 | - | 4.95 | 147,085 |
| Geography of Russia | 0 | - | 4.57 | 21,525 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 124,879 |
| States of Germany | 0 | - | 4.96 | 152,494 |
| Germany Immigration by Country | 0 | - | 4.85 | 81,017 |
| Regions of Italy | 0 | - | 4.92 | 75,845 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,131 |
| Regions of Spain Quiz | 0 | - | 4.90 | 113,918 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,182 |
| Languages of the United Kingdom | 0 | - | 4.13 | 40,889 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,693 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,484 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 233,190 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 276,774 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,089 |
| Departments of France | 0 | - | 4.93 | 54,076 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,543 |
| England or Wales? | 0 | - | 4.94 | 45,681 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 130,307 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,597 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,654 |
| Word Scramble - European Countries | 0 | - | 4.73 | 141,680 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 114,920 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,433 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,763 |
| Country Quiz on a Map - France | 0 | - | 4.98 | 47,187 |
| Country Quiz on a Map - Germany | 0 | - | 4.95 | 35,030 |
| The Trojan War | 0 | - | 4.83 | 39,719 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 647,246 |
| Name that Greek Letter | 0 | - | 4.93 | 323,399 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 111,808 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,607 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 84,516 |
| Roman Emperors | 0 | - | 4.95 | 119,998 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,460 |
| Languages of Spain | 0 | - | 4.36 | 23,315 |
| Most-Spoken Languages of the United States | 0 | - | 4.52 | 219,910 |
| Word Chain - Russia | 0 | - | 4.33 | 15,749 |
| Olympian Gods Quiz | 0 | - | 4.96 | 500,707 |
| History of Italy | 0 | - | 4.55 | 31,970 |
| Italy Multiple Choice | 0 | - | 4.74 | 103,770 |
| Geography of the Dutch Empire | 0 | - | 4.61 | 34,654 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,227 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 32,551 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 268,170 |
| European Geography By Letter - A | 0 | - | 4.52 | 146,150 |
| European Geography By Letter - B #1 | 0 | - | 4.64 | 118,270 |
| European Geography By Letter - C | 0 | - | 4.46 | 113,876 |
| European Geography By Letter - D | 0 | - | 4.50 | 108,541 |
| European Geography By Letter - L | 0 | - | 4.52 | 113,456 |
| European Geography By Letter - M | 0 | - | 4.67 | 130,578 |
| European Geography By Letter - P #1 | 0 | - | 4.80 | 97,504 |
| European Geography By Letter - N | 0 | - | 4.44 | 100,807 |
| European Geography By Letter - R | 0 | - | 4.42 | 93,667 |
| European Geography By Letter - V | 0 | - | 4.43 | 92,982 |
| European Geography By Letter - T | 0 | - | 4.41 | 82,403 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,147 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,268 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 71,933 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,215 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,228 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 100,570 |
| Four Letter European Geography #2 | 0 | - | 4.57 | 20,424 |
| Capitals of French Regions | 0 | - | 4.45 | 16,066 |
| Regions of France | 0 | - | 4.72 | 120,745 |
| France Immigration by Country | 0 | - | 4.70 | 76,504 |
| Famous Germans | 0 | - | 4.50 | 55,280 |
| German Groups of Things | 0 | - | 4.46 | 38,473 |
| Capitals of German States | 0 | - | 4.74 | 28,952 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,330 |
| Germany True or False? | 0 | - | 4.61 | 48,793 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,002 |
| Ancient Greek Words | 0 | - | 4.93 | 111,573 |
| Famous Italians by Clue | 0 | - | 4.45 | 89,473 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,123 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,340 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,261 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,225 |
| Things British People Know that Americans Don't | 0 | - | 4.25 | 51,443 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,657 |
| Name Every Beatles Song | 0 | - | 4.97 | 236,175 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 291,680 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 279,097 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,968 |
| Top World Languages | 0 | - | 4.92 | 821,918 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,569 |
| Official Languages of South Africa | 0 | - | 4.56 | 26,147 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,104 |
| Australian Capitals | 0 | - | 4.92 | 62,718 |
| European Physical Geography | 0 | - | 4.26 | 33,504 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 41,953 |
| History of Austria | 0 | - | 4.70 | 17,860 |
| Geography of the French Empire | 0 | - | 4.45 | 27,057 |
| The French Revolution | 0 | - | 4.46 | 23,929 |
| France Multiple Choice | 0 | - | 4.39 | 40,739 |
| History of France | 0 | - | 4.59 | 56,964 |
| Figures from Greek Mythology | 0 | - | 4.91 | 186,890 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 437,020 |
| The Vikings! | 0 | - | 4.46 | 28,342 |
| Sweden Immigration by Country | 0 | - | 4.55 | 56,120 |
| The Portuguese Empire | 0 | - | 4.58 | 12,064 |
| American to British Word Translation | 0 | - | 4.14 | 139,028 |
| United Kingdom A-Z | 0 | - | 4.52 | 88,028 |
| Champions League Top 4 | 0 | - | 4.77 | 136,374 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,140 |
| Asia Map Quiz | 0 | - | 4.99 | 916,523 |
| Japanese Language - Katakana Practice | 0 | - | 4.61 | 33,050 |
| Countries by Official Language | 0 | - | 4.95 | 194,888 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,874 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,876 |
| Countries in their Native Language | 0 | - | 4.99 | 198,420 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,753 |
| Countries of Africa | 0 | - | 5.00 | 2,536,146 |
| Landlocked Countries in Africa | 0 | - | 4.99 | 46,806 |
| African East Coast | 0 | - | 4.96 | 96,035 |
| Western Africa Map Quiz | 0 | - | 4.97 | 73,855 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 50,670 |
| Australia Map Quiz | 0 | - | 4.95 | 344,568 |
| United States Map Quiz | 0 | - | 4.98 | 4,157,978 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,201 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.94 | 92,647 |
| Countries That Use the Euro | 0 | - | 4.95 | 104,981 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,404 |
| European Geography By Letter - E | 0 | - | 4.23 | 113,566 |
| European Geography By Letter - F | 0 | - | 4.17 | 92,879 |
| European Geography By Letter - H | 0 | - | 4.30 | 96,008 |
| European Geography By Letter - G | 0 | - | 4.27 | 102,682 |
| European Geography By Letter - I | 0 | - | 4.10 | 95,490 |
| European Geography By Letter - K | 0 | - | 4.14 | 70,128 |
| European Geography By Letter - O | 0 | - | 4.28 | 62,712 |
| European Geography by Letter - W | 0 | - | 4.20 | 82,909 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,664 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 51,170 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 115,195 |
| European Geography A-Z | 0 | - | 4.29 | 49,261 |
| Country Codes of Europe | 0 | - | 3.43 | 13,715 |
| The Only European Country ... | 0 | - | 4.91 | 216,559 |
| European Countries NOT in NATO | 0 | - | 4.90 | 61,080 |
| Name a Major European City A-Z | 0 | - | 4.33 | 49,500 |
| Seas of Europe | 0 | - | 4.37 | 84,635 |
| Four Letter European Geography #1 | 0 | - | 4.40 | 28,134 |
| Embarrassing Chapters in Russian History | 0 | - | 3.70 | 20,301 |
| Latvia Country Quiz | 0 | - | 4.77 | 32,031 |
| Famous Swiss and Austrian People | 0 | - | 4.45 | 14,624 |
| Austria... or Australia? | 0 | - | 4.68 | 104,332 |
| Famous Dutch and Belgian People | 0 | - | 4.56 | 18,059 |
| Famous French People | 0 | - | 4.06 | 35,552 |
| Presidents of France | 0 | - | 4.25 | 24,129 |
| France A-Z | 0 | - | 4.16 | 38,201 |
| Word Chain - France | 0 | - | 4.38 | 42,775 |
| History of Germany | 0 | - | 4.39 | 52,816 |
| Ancient Greek Trivia | 0 | - | 4.62 | 66,989 |
| Geography of Ancient Greece | 0 | - | 4.69 | 31,909 |
| Greek Mythology General Knowledge #2 | 0 | - | 4.59 | 73,649 |
| Ancient Greece - Multiple Choice | 0 | - | 4.54 | 41,654 |
| Italian Foods | 0 | - | 4.30 | 72,770 |
| Countries Italy Declared War On | 0 | - | 4.75 | 43,321 |
| The Mafia Quiz | 0 | - | 4.46 | 23,318 |
| Ancient Roman Trivia #2 | 0 | - | 4.57 | 38,739 |
| Geography of the Roman Empire | 0 | - | 4.56 | 51,920 |
| Roman Names for Places | 0 | - | 4.62 | 58,275 |
| Byzantine History | 0 | - | 4.91 | 28,858 |
| Byzantine Emperors | 0 | - | 4.92 | 14,030 |
| History of The Netherlands | 0 | - | 4.46 | 17,430 |
| Kings of Spain Quiz | 0 | - | 4.14 | 14,035 |
| Most Common First Names in Spain | 0 | - | 4.27 | 45,609 |
| Canary Islands | 0 | - | 4.62 | 17,479 |
| Real Madrid 2010s Starting XI | 0 | - | 4.89 | 67,419 |
