| Count to 10 in Europe: Pro | 0 | - | 4.85 | 64,971 |
| Official European Union Languages | 0 | - | 4.98 | 227,541 |
| European Countries in their Native Language | 0 | - | 4.99 | 150,930 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 508,623 |
| Federal Subjects of Russia | 0 | - | 4.93 | 129,101 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 408,607 |
| Slavic Languages | 0 | - | 4.68 | 51,637 |
| Europe Geography Decoder | 0 | - | 4.85 | 66,767 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 40,625 |
| Countries that Beat Switzerland | 0 | - | 4.87 | 40,062 |
| Top European Languages on a Map | 0 | - | 4.77 | 125,729 |
| Top African Languages on a Map | 0 | - | 4.92 | 64,263 |
| Third Most Common Language by U.S. State | 0 | - | 4.90 | 111,066 |
| Most Spoken Languages in Canada | 0 | - | 4.90 | 51,395 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 22,212 |
| Celtic Nations | 0 | - | 4.74 | 45,945 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.87 | 83,850 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 298,152 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 143,507 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 82,370 |
| Eastern Europe Map Quiz | 0 | - | 4.90 | 121,685 |
| Slavic Countries | 0 | - | 4.96 | 106,318 |
| Germany Multiple Choice | 0 | - | 4.82 | 51,930 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 66,285 |
| Countries where Arabic is an Official Language | 0 | - | 4.83 | 53,684 |
| Catholic Countries in Europe | 0 | - | 4.83 | 89,682 |
| Category Elimination - European Geography #3 | 0 | - | 4.83 | 73,526 |
| Countries Formerly in Yugoslavia | 0 | - | 4.96 | 119,780 |
| States of Germany | 0 | - | 4.94 | 137,649 |
| Germany Immigration by Country | 0 | - | 4.87 | 75,413 |
| Counties of Ireland | 0 | - | 4.89 | 175,267 |
| Regions of Italy | 0 | - | 4.91 | 67,734 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 34,922 |
| Regions of Spain Quiz | 0 | - | 4.89 | 104,353 |
| Cantons of Switzerland | 0 | - | 4.97 | 45,193 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.96 | 308,502 |
| Champions League Winners | 0 | - | 4.91 | 945,596 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.70 | 56,281 |
| History of Russia Quiz | 0 | - | 4.48 | 31,066 |
| Geography of Russia | 0 | - | 4.56 | 20,870 |
| States of the German Confederation in 1848 | 0 | - | 4.85 | 29,256 |
| Languages of the United Kingdom | 0 | - | 4.13 | 39,751 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 16,520 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 216,835 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 262,688 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 155,165 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.83 | 33,303 |
| Departments of France | 0 | - | 4.89 | 44,367 |
| Countries Surrounding Rome | 0 | - | 4.96 | 48,118 |
| England or Wales? | 0 | - | 4.94 | 43,187 |
| All UEFA Champions League Teams Ever | 0 | - | 4.83 | 120,472 |
| Pre-Euro Currencies | 0 | - | 4.43 | 51,165 |
| Word Scramble - European Countries | 0 | - | 4.74 | 135,019 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 102,924 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 61,160 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 79,711 |
| Countries that Border Hungary | 0 | - | 4.98 | 100,645 |
| Moldova Country Quiz | 0 | - | 4.87 | 29,168 |
| French Geography Quiz #1 | 0 | - | 4.87 | 33,050 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 614,114 |
| Capitals of Italian Regions | 0 | - | 4.61 | 35,545 |
| Spanish Immigration by Country | 0 | - | 4.62 | 54,017 |
| Languages of Spain | 0 | - | 4.38 | 22,392 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 257,567 |
| Most-Spoken Languages of the United States | 0 | - | 4.44 | 201,289 |
| Famous Russians Quiz | 0 | - | 4.16 | 23,135 |
| Word Chain - Russia | 0 | - | 4.36 | 15,334 |
| Russia Multiple Choice | 0 | - | 4.57 | 39,539 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.85 | 93,044 |
| France Multiple Choice | 0 | - | 4.41 | 39,888 |
| The Trojan War | 0 | - | 4.81 | 37,737 |
| Name that Greek Letter | 0 | - | 4.94 | 310,578 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.86 | 102,490 |
| Italy Multiple Choice | 0 | - | 4.74 | 99,420 |
| Ancient Roman Trivia #1 | 0 | - | 4.83 | 74,988 |
| Roman Emperors | 0 | - | 4.96 | 109,255 |
| Geography of the Dutch Empire | 0 | - | 4.68 | 33,527 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 76,140 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 267,962 |
| European Geography By Letter - A | 0 | - | 4.61 | 128,581 |
| European Geography By Letter - B #1 | 0 | - | 4.73 | 107,393 |
| European Geography By Letter - C | 0 | - | 4.46 | 108,663 |
| European Geography By Letter - D | 0 | - | 4.51 | 103,416 |
| European Geography By Letter - L | 0 | - | 4.51 | 108,856 |
| European Geography By Letter - M | 0 | - | 4.53 | 117,948 |
| European Geography By Letter - P | 0 | - | 4.79 | 93,241 |
| European Geography By Letter - N | 0 | - | 4.43 | 96,706 |
| European Geography By Letter - R | 0 | - | 4.41 | 90,129 |
| European Geography By Letter - V | 0 | - | 4.46 | 89,493 |
| Europe Map Quiz | 0 | - | 5.00 | 4,543,858 |
| Europe Geography Quiz #1 | 0 | - | 4.54 | 69,339 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 69,884 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 68,423 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 59,632 |
| European Geography By Letter - S #1 | 0 | - | 4.61 | 96,787 |
| European Geography By Letter - B #2 | 0 | - | 4.80 | 65,552 |
| Most Mentioned Allies of Russia | 0 | - | 4.48 | 36,464 |
| Most Mentioned Enemies of Russia | 0 | - | 4.70 | 86,795 |
| Capitals of French Regions | 0 | - | 4.42 | 15,477 |
| Regions of France | 0 | - | 4.70 | 110,845 |
| France Immigration by Country | 0 | - | 4.77 | 73,179 |
| Famous Germans | 0 | - | 4.44 | 39,784 |
| German Groups of Things | 0 | - | 4.46 | 37,376 |
| Capitals of German States | 0 | - | 4.70 | 28,155 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 21,964 |
| Germany True or False? | 0 | - | 4.62 | 46,765 |
| Largest Islands of Greece | 0 | - | 4.58 | 44,279 |
| Olympian Gods Quiz | 0 | - | 4.96 | 471,191 |
| Ancient Greek Words | 0 | - | 4.92 | 105,139 |
| Famous Italians | 0 | - | 4.41 | 70,469 |
| Provinces of the Netherlands | 0 | - | 4.74 | 37,062 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 47,126 |
| Foods in a Full English Breakfast | 0 | - | 4.45 | 97,660 |
| Beatles Songs Quiz | 0 | - | 4.96 | 222,854 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 283,040 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 359,427 |
| Top World Languages | 0 | - | 4.91 | 765,879 |
| Africa Map Quiz | 0 | - | 5.00 | 2,030,768 |
| Official Languages of South Africa | 0 | - | 4.55 | 25,561 |
| Oceania Map Quiz | 0 | - | 4.98 | 603,428 |
| Australian Capitals | 0 | - | 4.92 | 61,852 |
| European Physical Geography | 0 | - | 4.24 | 32,747 |
| Croatia Country Quiz | 0 | - | 4.80 | 40,579 |
| Czech Republic Country Quiz | 0 | - | 4.51 | 40,119 |
| Slovakia... or Slovenia? | 0 | - | 4.70 | 40,836 |
| Ukraine Country Quiz | 0 | - | 4.41 | 45,184 |
| Hungary Country Quiz | 0 | - | 4.48 | 40,842 |
| Romania Country Quiz | 0 | - | 4.61 | 51,064 |
| History of Austria | 0 | - | 4.69 | 17,136 |
| Geography of the French Empire | 0 | - | 4.51 | 26,161 |
| The French Revolution | 0 | - | 4.45 | 22,814 |
| History of France Quiz | 0 | - | 4.56 | 41,642 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 22,796 |
| History of Ireland Quiz | 0 | - | 4.44 | 20,224 |
| History of Italy | 0 | - | 4.52 | 31,012 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 417,664 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 52,622 |
| The Vikings! | 0 | - | 4.46 | 27,772 |
| Sweden Immigration by Country | 0 | - | 4.64 | 44,852 |
| The Portuguese Empire | 0 | - | 4.54 | 11,691 |
| United Kingdom A-Z | 0 | - | 4.53 | 84,573 |
| Champions League Top 4 | 0 | - | 4.62 | 121,882 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,397,025 |
| Asia Map Quiz | 0 | - | 4.99 | 853,287 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.39 | 31,559 |
| Countries by Official Language | 0 | - | 4.95 | 183,594 |
| Places in their Native Language #1 | 0 | - | 4.85 | 231,294 |
| Places in their Native Language #2 | 0 | - | 4.89 | 118,999 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 281,386 |
| Countries in their Native Language | 0 | - | 4.98 | 188,425 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 121,705 |
| Countries of Africa | 0 | - | 5.00 | 2,349,365 |
| African East Coast | 0 | - | 4.96 | 90,173 |
| Western Africa Map Quiz | 0 | - | 4.97 | 67,859 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 45,561 |
| Australia Map Quiz | 0 | - | 4.94 | 333,194 |
| United States Map Quiz | 0 | - | 4.98 | 4,048,575 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 201,584 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 89,364 |
| Countries That Use the Euro | 0 | - | 4.92 | 75,368 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 350,463 |
| European Geography By Letter - E | 0 | - | 4.22 | 109,108 |
| European Geography By Letter - F | 0 | - | 4.16 | 88,752 |
| European Geography By Letter - H | 0 | - | 4.29 | 92,247 |
| European Geography By Letter - G | 0 | - | 4.26 | 98,461 |
| European Geography By Letter - I | 0 | - | 4.10 | 91,942 |
| European Geography By Letter - K | 0 | - | 4.14 | 66,820 |
| European Geography By Letter - O | 0 | - | 4.28 | 59,857 |
| European Geography by Letter - W | 0 | - | 4.22 | 80,586 |
| European Geography By Letter - T | 0 | - | 4.39 | 73,063 |
| Europe Geography Quiz #3 | 0 | - | 4.33 | 61,954 |
| European Geography By Letter - S #2 | 0 | - | 4.19 | 48,682 |
| 10 Easternmost Countries in Europe | 0 | - | 4.89 | 104,036 |
| European Geography A-Z | 0 | - | 4.31 | 47,445 |
| Country Codes of Europe | 0 | - | 3.40 | 13,254 |
| The Only European Country ... | 0 | - | 4.92 | 197,179 |
| Embarrassing Chapters in Russian History | 0 | - | 3.75 | 19,851 |
| Austria... or Australia? | 0 | - | 4.78 | 101,457 |
| Presidents of France | 0 | - | 4.24 | 22,129 |
| Word Chain - France | 0 | - | 4.37 | 41,550 |
| Ancient Greek Trivia | 0 | - | 4.55 | 65,238 |
| Figures from Greek Mythology | 0 | - | 4.90 | 175,739 |
| Italian Foods | 0 | - | 4.31 | 68,789 |
| History of The Netherlands | 0 | - | 4.45 | 16,540 |
| Famous Nordic People | 0 | - | 4.41 | 10,952 |
| Kings of Spain Quiz | 0 | - | 4.14 | 13,515 |
| Canary Islands | 0 | - | 4.61 | 16,999 |
| Real Madrid 2010's Starting XI | 0 | - | 4.85 | 60,003 |
| Switzerland Immigration by Country | 0 | - | 4.78 | 26,041 |
| British Spellings Quiz | 0 | - | 4.07 | 97,200 |
| British Groups of Things | 0 | - | 4.25 | 81,890 |
| British Acronyms | 0 | - | 4.39 | 44,678 |
| United Kingdom Decoder | 0 | - | 4.29 | 39,387 |
| British Monopoly Board | 0 | - | 4.51 | 40,290 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 89,289 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,337,936 |
| Capitals in their Native Languages | 0 | - | 4.94 | 130,122 |
| Top World Languages A-Z | 0 | - | 4.87 | 34,323 |
| German-Speaking Countries | 0 | - | 4.89 | 120,958 |
| French-Speaking Countries | 0 | - | 4.85 | 256,847 |
