| European Countries by First 2 Letters | 0 | - | 4.96 | 454,366 |
| Official European Union Languages | 0 | - | 4.98 | 198,979 |
| European Countries in their Native Language | 0 | - | 4.99 | 142,992 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 382,408 |
| Slavic Languages | 0 | - | 4.58 | 48,447 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,312 |
| Europe Geography Decoder | 0 | - | 4.89 | 62,845 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.82 | 38,926 |
| Russia Multiple Choice | 0 | - | 4.56 | 37,867 |
| Add A Letter - Make a European City | 0 | - | 4.87 | 20,728 |
| Celtic Nations | 0 | - | 4.76 | 44,536 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.89 | 79,125 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 283,387 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 113,815 |
| Regions of Spain Quiz | 0 | - | 4.85 | 93,695 |
| Cantons of Switzerland | 0 | - | 4.96 | 39,832 |
| Champions League Winners | 0 | - | 4.91 | 840,612 |
| Count to 10 in Europe: Pro | 0 | - | 4.79 | 60,642 |
| Catholic Countries in Europe | 0 | - | 4.87 | 82,875 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,503 |
| Federal Subjects of Russia | 0 | - | 4.95 | 110,558 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,508 |
| States of Germany | 0 | - | 4.94 | 121,869 |
| Germany Immigration by Country | 0 | - | 4.90 | 69,008 |
| States of the German Confederation in 1848 | 0 | - | 4.84 | 26,130 |
| Counties of Ireland | 0 | - | 4.89 | 157,512 |
| Regions of Italy | 0 | - | 4.88 | 59,678 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,412 |
| England or Wales? | 0 | - | 4.93 | 39,889 |
| All Champions League Teams Ever | 0 | - | 4.89 | 102,808 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 198,540 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 244,554 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,377 |
| Spanish Immigration by Country | 0 | - | 4.59 | 51,583 |
| Switzerland Immigration by Country | 0 | - | 4.81 | 20,014 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,200 |
| Word Scramble - European Countries | 0 | - | 4.71 | 112,957 |
| Top 20 Football Clubs in Europe | 0 | - | 4.49 | 83,745 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.93 | 55,671 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 580,274 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,340 |
| Roman Emperors | 0 | - | 4.95 | 94,921 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,248 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 64,973 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 253,331 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 243,265 |
| Top European Languages on a Map | 0 | - | 4.76 | 116,861 |
| French Geography Quiz #1 | 0 | - | 4.86 | 30,819 |
| Germany Multiple Choice | 0 | - | 4.80 | 48,903 |
| The Trojan War | 0 | - | 4.81 | 35,713 |
| Italy Multiple Choice | 0 | - | 4.72 | 92,910 |
| Provinces of the Netherlands | 0 | - | 4.61 | 32,989 |
| 100 Greatest Britons Quiz | 0 | - | 4.44 | 45,904 |
| British Acronyms | 0 | - | 4.42 | 43,202 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 72,833 |
| Beatles Songs Quiz | 0 | - | 4.95 | 204,546 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 272,040 |
| Australian Capitals | 0 | - | 4.90 | 52,958 |
| European Geography By Letter - A | 0 | - | 4.55 | 123,705 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 103,080 |
| European Geography By Letter - C | 0 | - | 4.44 | 104,481 |
| European Geography By Letter - D | 0 | - | 4.52 | 99,087 |
| European Geography By Letter - L | 0 | - | 4.50 | 104,513 |
| European Geography By Letter - M | 0 | - | 4.55 | 114,000 |
| European Geography By Letter - P | 0 | - | 4.79 | 89,161 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,123 |
| European Geography By Letter - V | 0 | - | 4.45 | 85,955 |
| Europe Map Quiz | 0 | - | 5.00 | 4,261,169 |
| Europe Geography Quiz #1 | 0 | - | 4.52 | 66,781 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,264 |
| Europe Geography Quiz #4 | 0 | - | 4.56 | 65,951 |
| Europe Geography Quiz #5 | 0 | - | 4.53 | 57,649 |
| European Geography By Letter - S #1 | 0 | - | 4.57 | 93,582 |
| European Geography A-Z | 0 | - | 4.43 | 45,091 |
| Regions of France | 0 | - | 4.64 | 99,187 |
| France Immigration by Country | 0 | - | 4.80 | 68,385 |
| German Groups of Things | 0 | - | 4.43 | 35,789 |
| Capitals of German States | 0 | - | 4.67 | 26,991 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 13,339 |
| Germany True or False? | 0 | - | 4.64 | 44,152 |
| Largest Islands of Greece | 0 | - | 4.56 | 39,024 |
| Olympian Gods Quiz | 0 | - | 4.96 | 455,385 |
| Name that Greek Letter | 0 | - | 4.94 | 294,440 |
| Ancient Greek Words | 0 | - | 4.90 | 96,376 |
| Capitals of Italian Regions | 0 | - | 4.52 | 26,011 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 396,814 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,131 |
| The Vikings! | 0 | - | 4.44 | 27,026 |
| Sweden Immigration by Country | 0 | - | 4.66 | 41,980 |
| The Portuguese Empire | 0 | - | 4.54 | 11,296 |
| British Words Quiz #2 | 0 | - | 4.04 | 106,625 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,202 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,251 |
| Champions League Top 4 | 0 | - | 4.76 | 102,575 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,335,625 |
| Asia Map Quiz | 0 | - | 4.99 | 775,819 |
| Africa Map Quiz | 0 | - | 5.00 | 1,927,305 |
| Oceania Map Quiz | 0 | - | 4.97 | 563,176 |
| European Physical Geography | 0 | - | 4.19 | 31,826 |
| History of Russia Quiz | 0 | - | 4.48 | 29,750 |
| Geography of Russia | 0 | - | 4.54 | 20,086 |
| History of Austria | 0 | - | 4.68 | 16,299 |
| Geography of the French Empire | 0 | - | 4.49 | 25,300 |
| The French Revolution | 0 | - | 4.44 | 21,825 |
| History of France Quiz | 0 | - | 4.55 | 39,506 |
| History of Ireland Quiz | 0 | - | 4.43 | 18,792 |
| History of Italy | 0 | - | 4.49 | 29,667 |
| History of The Netherlands | 0 | - | 4.42 | 15,652 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,746 |
| Canary Islands | 0 | - | 4.60 | 16,511 |
| British Spellings Quiz | 0 | - | 4.04 | 94,445 |
| British Groups of Things | 0 | - | 4.26 | 79,974 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,658 |
| British Monopoly Board | 0 | - | 4.50 | 38,965 |
| South and Central Asia Map Quiz | 0 | - | 4.92 | 78,824 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,274,361 |
| Countries of Africa | 0 | - | 5.00 | 2,144,880 |
| African East Coast | 0 | - | 4.97 | 83,423 |
| Western Africa Map Quiz | 0 | - | 4.97 | 60,228 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 39,732 |
| Australia Map Quiz | 0 | - | 4.95 | 317,546 |
| United States Map Quiz | 0 | - | 4.98 | 3,884,002 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 194,373 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.92 | 86,426 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,679 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 334,174 |
| European Geography By Letter - E | 0 | - | 4.19 | 104,863 |
| European Geography By Letter - F | 0 | - | 4.15 | 84,896 |
| European Geography By Letter - H | 0 | - | 4.29 | 88,233 |
| European Geography By Letter - G | 0 | - | 4.24 | 94,708 |
| European Geography By Letter - I | 0 | - | 4.09 | 88,438 |
| European Geography By Letter - K | 0 | - | 4.16 | 64,213 |
| European Geography By Letter - O | 0 | - | 4.27 | 57,485 |
| European Geography By Letter - R | 0 | - | 4.39 | 87,200 |
| European Geography by Letter - W | 0 | - | 4.21 | 78,025 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,633 |
| Europe Geography Quiz #3 | 0 | - | 4.31 | 59,700 |
| European Geography By Letter - S #2 | 0 | - | 4.16 | 46,497 |
| 10 Easternmost Countries in Europe | 0 | - | 4.87 | 91,068 |
| Country Codes of Europe | 0 | - | 3.34 | 12,684 |
| The Only European Country ... | 0 | - | 4.94 | 176,245 |
| Word Chain - Russia | 0 | - | 4.41 | 14,764 |
| Austria... or Australia? | 0 | - | 4.79 | 97,505 |
| Capitals of French Regions | 0 | - | 4.40 | 14,689 |
| Presidents of France | 0 | - | 4.22 | 19,934 |
| Word Chain - France | 0 | - | 4.38 | 39,801 |
| Famous Germans | 0 | - | 4.39 | 35,102 |
| Ancient Greek Trivia | 0 | - | 4.56 | 63,153 |
| Figures from Greek Mythology | 0 | - | 4.92 | 168,590 |
| Famous Italians | 0 | - | 4.40 | 65,635 |
| Italian Foods | 0 | - | 4.25 | 63,581 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,229 |
| Geography of the Roman Empire | 0 | - | 4.58 | 48,290 |
| Byzantine History | 0 | - | 4.87 | 26,115 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,502 |
| History of Spain Quiz | 0 | - | 4.33 | 19,498 |
| Languages of Spain | 0 | - | 4.34 | 21,213 |
| British Words Quiz #1 | 0 | - | 3.78 | 235,759 |
| British Foods | 0 | - | 3.85 | 46,976 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,525 |
| British and American Word Differences | 0 | - | 2.67 | 44,325 |
| Counties of England | 0 | - | 4.96 | 684,174 |
| British Geography Quiz #2 | 0 | - | 4.27 | 26,256 |
| Wonderwall Lyrics | 0 | - | 4.22 | 68,407 |
| Best-Selling British Musical Acts | 0 | - | 4.47 | 43,313 |
| Bridges of London | 0 | - | 4.11 | 9,311 |
| British Sport Trivia | 0 | - | 4.32 | 19,175 |
| Famous Welsh People | 0 | - | 4.12 | 9,244 |
| Champions League All-Time Table | 0 | - | 4.17 | 114,624 |
| Champions League Top Goal Scorers | 0 | - | 4.22 | 164,206 |
| Flags of Asia Quiz | 0 | - | 4.99 | 519,551 |
| East Asia Cities Map Quiz | 0 | - | 4.97 | 99,689 |
| 10 Biggest Asian Countries by Area | 0 | - | 4.97 | 124,953 |
| 10 Southernmost Countries in Asia | 0 | - | 4.97 | 88,155 |
| 10 Easternmost Countries in Asia | 0 | - | 4.98 | 95,940 |
| Countries of Asia with Two or More Words | 0 | - | 4.95 | 110,097 |
| Asian Countries Ending in "IA" | 0 | - | 4.94 | 92,834 |
| Top Asian Languages on a Map | 0 | - | 4.93 | 60,010 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 209,002 |
| All First-Level Subdivisions of Asia on a Map | 0 | - | 4.96 | 35,696 |
| Countries of the Middle East | 0 | - | 4.96 | 171,629 |
| Countries where Arabic is an Official Language | 0 | - | 4.83 | 51,897 |
| Africa Cities Map Quiz | 0 | - | 4.97 | 91,059 |
| Flags of Africa Quiz | 0 | - | 4.99 | 381,872 |
| Landlocked Countries in Africa | 0 | - | 4.98 | 18,989 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 196,576 |
| 10 Southernmost Countries in Africa | 0 | - | 4.98 | 104,060 |
| 10 Northernmost Countries in Africa | 0 | - | 4.98 | 130,073 |
| African Countries with the Shortest Names | 0 | - | 4.97 | 118,318 |
| Top African Languages on a Map | 0 | - | 4.91 | 51,543 |
| African Island Countries | 0 | - | 4.96 | 88,647 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 221,379 |
| Australian States and Territories | 0 | - | 4.96 | 128,287 |
| Australian True or False | 0 | - | 4.90 | 50,897 |
| 10 Biggest American Countries by Area | 0 | - | 4.95 | 106,487 |
| Top 10 Most Populous American Countries | 0 | - | 4.97 | 131,539 |
| Latin American Countries Map Quiz | 0 | - | 4.97 | 105,160 |
| South America Map Quiz | 0 | - | 5.00 | 1,411,612 |
| Countries of North America Quiz | 0 | - | 5.00 | 870,703 |
| North America Map Quiz | 0 | - | 4.98 | 195,090 |
