| European Countries by First 2 Letters | 0 | - | 4.96 | 453,513 |
| Russia Multiple Choice | 0 | - | 4.56 | 37,806 |
| Official European Union Languages | 0 | - | 4.98 | 198,578 |
| European Countries in their Native Language | 0 | - | 4.99 | 142,776 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 381,585 |
| History of Russia Quiz | 0 | - | 4.48 | 29,720 |
| Geography of Russia | 0 | - | 4.54 | 20,072 |
| Slavic Languages | 0 | - | 4.58 | 48,378 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,222 |
| Europe Geography Decoder | 0 | - | 4.89 | 62,718 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.82 | 38,898 |
| Word Chain - Russia | 0 | - | 4.41 | 14,735 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,687 |
| Celtic Nations | 0 | - | 4.76 | 44,494 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.89 | 78,955 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 282,899 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 113,170 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 73,648 |
| Eastern Europe Map Quiz | 0 | - | 4.88 | 114,633 |
| Slavic Countries | 0 | - | 4.96 | 99,717 |
| Regions of Spain Quiz | 0 | - | 4.85 | 93,380 |
| Cantons of Switzerland | 0 | - | 4.96 | 39,699 |
| Champions League Winners | 0 | - | 4.90 | 836,960 |
| Count to 10 in Europe: Pro | 0 | - | 4.79 | 60,546 |
| Catholic Countries in Europe | 0 | - | 4.87 | 82,619 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,402 |
| Federal Subjects of Russia | 0 | - | 4.95 | 109,768 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 100,872 |
| States of Germany | 0 | - | 4.94 | 121,404 |
| Germany Immigration by Country | 0 | - | 4.90 | 68,791 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,030 |
| Counties of Ireland | 0 | - | 4.89 | 157,006 |
| Regions of Italy | 0 | - | 4.88 | 59,428 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,361 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,279 |
| Spanish Immigration by Country | 0 | - | 4.58 | 51,477 |
| Switzerland Immigration by Country | 0 | - | 4.81 | 19,619 |
| England or Wales? | 0 | - | 4.93 | 39,801 |
| All Champions League Teams Ever | 0 | - | 4.89 | 102,217 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,125 |
| Word Scramble - European Countries | 0 | - | 4.71 | 112,768 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 83,106 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 197,955 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 243,430 |
| Asian Countries by First 2 Letters | 0 | - | 4.91 | 252,568 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 242,772 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.93 | 55,373 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 31,923 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 64,912 |
| Top European Languages on a Map | 0 | - | 4.76 | 116,601 |
| Embarrassing Chapters in Russian History | 0 | - | 3.80 | 19,255 |
| Germany Multiple Choice | 0 | - | 4.80 | 48,804 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 579,056 |
| Italy Multiple Choice | 0 | - | 4.72 | 92,650 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,237 |
| Roman Emperors | 0 | - | 4.95 | 94,598 |
| Europe Map Quiz | 0 | - | 5.00 | 4,250,161 |
| Famous Russians Quiz | 0 | - | 4.15 | 22,550 |
| French Geography Quiz #1 | 0 | - | 4.86 | 30,733 |
| Capitals of German States | 0 | - | 4.67 | 26,971 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 13,297 |
| The Trojan War | 0 | - | 4.81 | 35,599 |
| Capitals of Italian Regions | 0 | - | 4.52 | 25,986 |
| Provinces of the Netherlands | 0 | - | 4.61 | 32,915 |
| 100 Greatest Britons Quiz | 0 | - | 4.44 | 45,863 |
| British Acronyms | 0 | - | 4.42 | 43,165 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 72,660 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,333,335 |
| Asia Map Quiz | 0 | - | 4.99 | 772,635 |
| Africa Map Quiz | 0 | - | 5.00 | 1,923,559 |
| Oceania Map Quiz | 0 | - | 4.97 | 561,774 |
| Australian Capitals | 0 | - | 4.90 | 52,924 |
| European Geography By Letter - A | 0 | - | 4.55 | 123,545 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 102,939 |
| European Geography By Letter - C | 0 | - | 4.44 | 104,349 |
| European Geography By Letter - D | 0 | - | 4.52 | 98,942 |
| European Geography By Letter - L | 0 | - | 4.50 | 104,384 |
| European Geography By Letter - M | 0 | - | 4.55 | 113,866 |
| European Geography By Letter - P | 0 | - | 4.79 | 89,036 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,035 |
| European Geography By Letter - V | 0 | - | 4.45 | 85,870 |
| Europe Geography Quiz #1 | 0 | - | 4.52 | 66,695 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,159 |
| Europe Geography Quiz #4 | 0 | - | 4.56 | 65,868 |
| Europe Geography Quiz #5 | 0 | - | 4.53 | 57,577 |
| European Geography By Letter - S #1 | 0 | - | 4.57 | 93,484 |
| European Geography A-Z | 0 | - | 4.43 | 45,000 |
| Regions of France | 0 | - | 4.59 | 98,845 |
| France Immigration by Country | 0 | - | 4.80 | 68,228 |
| German Groups of Things | 0 | - | 4.43 | 35,743 |
| Germany True or False? | 0 | - | 4.64 | 44,057 |
| Largest Islands of Greece | 0 | - | 4.56 | 38,836 |
| Olympian Gods Quiz | 0 | - | 4.96 | 454,658 |
| Name that Greek Letter | 0 | - | 4.94 | 293,868 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 47,943 |
| The Vikings! | 0 | - | 4.44 | 27,002 |
| Sweden Immigration by Country | 0 | - | 4.66 | 41,877 |
| The Portuguese Empire | 0 | - | 4.54 | 11,281 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,732 |
| British Words Quiz #2 | 0 | - | 4.03 | 106,563 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,159 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,142 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.87 | 26,294 |
| Beatles Songs Quiz | 0 | - | 4.94 | 203,980 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 271,501 |
| Champions League Top 4 | 0 | - | 4.76 | 101,775 |
| South and Central Asia Map Quiz | 0 | - | 4.92 | 78,503 |
| African East Coast | 0 | - | 4.97 | 83,177 |
| Western Africa Map Quiz | 0 | - | 4.97 | 59,854 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 39,560 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 193,102 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,378 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,345 |
| European Physical Geography | 0 | - | 4.19 | 31,791 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 90,708 |
| Country Codes of Europe | 0 | - | 3.34 | 12,663 |
| The Only European Country ... | 0 | - | 4.94 | 175,748 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,470 |
| History of Austria | 0 | - | 4.68 | 16,263 |
| Capitals of French Regions | 0 | - | 4.40 | 14,674 |
| Presidents of France | 0 | - | 4.22 | 19,884 |
| Geography of the French Empire | 0 | - | 4.49 | 24,974 |
| The French Revolution | 0 | - | 4.44 | 21,785 |
| History of France Quiz | 0 | - | 4.55 | 39,457 |
| Ancient Greek Words | 0 | - | 4.90 | 96,070 |
| History of Ireland Quiz | 0 | - | 4.43 | 18,763 |
| History of Italy | 0 | - | 4.49 | 29,634 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 395,949 |
| History of The Netherlands | 0 | - | 4.42 | 15,624 |
| Canary Islands | 0 | - | 4.60 | 16,488 |
| British Spellings Quiz | 0 | - | 4.04 | 94,366 |
| British Groups of Things | 0 | - | 4.26 | 79,916 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,635 |
| British Monopoly Board | 0 | - | 4.50 | 38,672 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,272,498 |
| Countries of Africa | 0 | - | 5.00 | 2,137,364 |
| Australia Map Quiz | 0 | - | 4.94 | 317,092 |
| United States Map Quiz | 0 | - | 4.98 | 3,878,579 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 333,601 |
| European Geography By Letter - E | 0 | - | 4.19 | 104,730 |
| European Geography By Letter - F | 0 | - | 4.14 | 84,575 |
| European Geography By Letter - H | 0 | - | 4.29 | 88,120 |
| European Geography By Letter - G | 0 | - | 4.24 | 94,583 |
| European Geography By Letter - I | 0 | - | 4.09 | 88,333 |
| European Geography By Letter - K | 0 | - | 4.16 | 64,122 |
| European Geography By Letter - O | 0 | - | 4.27 | 57,408 |
| European Geography By Letter - R | 0 | - | 4.39 | 87,115 |
| European Geography by Letter - W | 0 | - | 4.21 | 77,951 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,550 |
| Europe Geography Quiz #3 | 0 | - | 4.31 | 59,629 |
| European Geography By Letter - S #2 | 0 | - | 4.16 | 46,427 |
| Austria... or Australia? | 0 | - | 4.79 | 97,360 |
| Word Chain - France | 0 | - | 4.38 | 39,738 |
| Famous Germans | 0 | - | 4.39 | 35,079 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,077 |
| Famous Italians | 0 | - | 4.40 | 65,438 |
| Italian Foods | 0 | - | 4.25 | 63,372 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,172 |
| Geography of the Roman Empire | 0 | - | 4.58 | 47,972 |
| Byzantine History | 0 | - | 4.87 | 26,053 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,455 |
| History of Spain Quiz | 0 | - | 4.33 | 19,481 |
| Languages of Spain | 0 | - | 4.34 | 21,175 |
| British Words Quiz #1 | 0 | - | 3.78 | 235,642 |
| British Foods | 0 | - | 3.83 | 46,942 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,440 |
| British and American Word Differences | 0 | - | 2.68 | 44,307 |
| Counties of England | 0 | - | 4.96 | 682,003 |
| British Geography Quiz #2 | 0 | - | 4.27 | 26,228 |
| Wonderwall Lyrics | 0 | - | 4.22 | 68,273 |
| Best-Selling British Musical Acts | 0 | - | 4.47 | 43,262 |
| Bridges of London | 0 | - | 4.11 | 9,305 |
| British Sport Trivia | 0 | - | 4.32 | 19,149 |
| Famous Welsh People | 0 | - | 4.12 | 9,233 |
| Champions League All-Time Table | 0 | - | 4.17 | 113,962 |
| Champions League Top Goal Scorers | 0 | - | 4.22 | 163,508 |
| Flags of Asia Quiz | 0 | - | 4.99 | 517,966 |
| East Asia Cities Map Quiz | 0 | - | 4.97 | 99,510 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 124,724 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 87,911 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 95,668 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 109,858 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 92,567 |
| Top Asian Languages on a Map | 0 | - | 4.93 | 59,816 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 208,574 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.96 | 35,498 |
| Countries of the Middle East | 0 | - | 4.96 | 171,167 |
| Countries where Arabic is an Official Language | 0 | - | 4.83 | 51,854 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 90,925 |
| Flags of Africa Quiz | 0 | - | 4.99 | 380,198 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 18,826 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 196,239 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 103,812 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 129,654 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 117,956 |
| Top African Languages on a Map | 0 | - | 4.91 | 51,068 |
| African Island Countries | 0 | - | 4.96 | 88,430 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 220,928 |
| Australian States and Territories | 0 | - | 4.96 | 128,107 |
| Australian True or False | 0 | - | 4.90 | 50,775 |
