| Official European Union Languages | 0 | - | 4.98 | 200,721 |
| European Countries in their Native Language | 0 | - | 4.99 | 144,107 |
| European Countries by First 2 Letters | 0 | - | 4.96 | 457,871 |
| Slavic Languages | 0 | - | 4.58 | 48,798 |
| Count to 10 in Europe: Pro | 0 | - | 4.80 | 61,062 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 386,905 |
| Countries that Beat Switzerland | 0 | - | 4.85 | 37,702 |
| Europe Geography Decoder | 0 | - | 4.89 | 63,375 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.83 | 39,077 |
| Top European Languages on a Map | 0 | - | 4.76 | 118,376 |
| Russia Multiple Choice | 0 | - | 4.55 | 38,140 |
| Add A Letter - Make a European City | 0 | - | 4.86 | 20,877 |
| Top Asian Languages on a Map | 0 | - | 4.94 | 60,802 |
| Countries where Arabic is an Official Language | 0 | - | 4.84 | 52,095 |
| Top African Languages on a Map | 0 | - | 4.92 | 53,311 |
| Third Most Common Language by U.S. State | 0 | - | 4.91 | 107,141 |
| Most Spoken Languages in Canada | 0 | - | 4.82 | 47,160 |
| Celtic Nations | 0 | - | 4.76 | 44,676 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.90 | 79,774 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 285,798 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 116,333 |
| Countries with Territory in the Balkans | 0 | - | 4.96 | 74,917 |
| Eastern Europe Map Quiz | 0 | - | 4.89 | 115,846 |
| Slavic Countries | 0 | - | 4.96 | 100,694 |
| Germany Multiple Choice | 0 | - | 4.81 | 49,442 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 31,893 |
| Regions of Spain Quiz | 0 | - | 4.86 | 95,199 |
| Cantons of Switzerland | 0 | - | 4.96 | 40,440 |
| Languages of the United Kingdom | 0 | - | 4.10 | 38,365 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 271,553 |
| Champions League Winners | 0 | - | 4.91 | 856,415 |
| Catholic Countries in Europe | 0 | - | 4.87 | 83,869 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.71 | 53,894 |
| Category Elimination - European Geography #3 | 0 | - | 4.85 | 65,962 |
| History of Russia Quiz | 0 | - | 4.48 | 29,896 |
| Federal Subjects of Russia | 0 | - | 4.95 | 112,881 |
| Geography of Russia | 0 | - | 4.54 | 20,195 |
| Countries Formerly in Yugoslavia | 0 | - | 4.95 | 102,200 |
| States of Germany | 0 | - | 4.93 | 124,070 |
| Germany Immigration by Country | 0 | - | 4.90 | 69,906 |
| States of the German Confederation in 1848 | 0 | - | 4.83 | 26,586 |
| Counties of Ireland | 0 | - | 4.89 | 159,492 |
| Regions of Italy | 0 | - | 4.88 | 60,597 |
| Countries Surrounding Rome | 0 | - | 4.96 | 46,654 |
| England or Wales? | 0 | - | 4.93 | 40,329 |
| All Champions League Teams Ever | 0 | - | 4.89 | 104,812 |
| Category Elimination - European Geography #1 | 0 | - | 4.97 | 201,290 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 247,450 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 143,178 |
| Spanish Immigration by Country | 0 | - | 4.63 | 51,938 |
| Pre-Euro Currencies | 0 | - | 4.42 | 49,469 |
| Word Scramble - European Countries | 0 | - | 4.72 | 114,018 |
| Top 20 Football Clubs in Europe | 0 | - | 4.50 | 86,083 |
| Word Chain - Russia | 0 | - | 4.41 | 14,826 |
| Languages of Spain | 0 | - | 4.34 | 21,371 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 56,459 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 585,099 |
| Ancient Roman Trivia #1 | 0 | - | 4.84 | 71,784 |
| Roman Emperors | 0 | - | 4.95 | 96,101 |
| Geography of the Dutch Empire | 0 | - | 4.70 | 32,470 |
| Countries of the Spanish Empire | 0 | - | 4.51 | 74,771 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 255,695 |
| African Countries by First 2 Letters | 0 | - | 4.95 | 245,124 |
| Most-Spoken Languages of the United States | 0 | - | 4.45 | 163,835 |
| French Geography Quiz #1 | 0 | - | 4.86 | 31,111 |
| The Trojan War | 0 | - | 4.81 | 35,987 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.81 | 85,641 |
| Italy Multiple Choice | 0 | - | 4.74 | 94,053 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,439 |
| Top World Languages | 0 | - | 4.91 | 709,161 |
| Provinces of the Netherlands | 0 | - | 4.61 | 33,382 |
| 100 Greatest Britons Quiz | 0 | - | 4.43 | 46,047 |
| British Acronyms | 0 | - | 4.41 | 43,412 |
| Foods in a Full English Breakfast | 0 | - | 4.41 | 73,561 |
| Beatles Songs Quiz | 0 | - | 4.95 | 208,231 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 274,178 |
| Top 12 Languages Spoken in Asia | 0 | - | 4.40 | 30,550 |
| Australian Capitals | 0 | - | 4.92 | 60,792 |
| European Geography By Letter - A | 0 | - | 4.51 | 124,573 |
| European Geography By Letter - B #1 | 0 | - | 4.72 | 103,717 |
| European Geography By Letter - C | 0 | - | 4.43 | 105,076 |
| European Geography By Letter - D | 0 | - | 4.53 | 99,686 |
| European Geography By Letter - L | 0 | - | 4.51 | 105,251 |
| European Geography By Letter - M | 0 | - | 4.55 | 114,587 |
| European Geography By Letter - P | 0 | - | 4.79 | 89,823 |
| European Geography By Letter - N | 0 | - | 4.43 | 93,560 |
| European Geography By Letter - V | 0 | - | 4.45 | 86,566 |
| Europe Map Quiz | 0 | - | 5.00 | 4,300,649 |
| Europe Geography Quiz #1 | 0 | - | 4.53 | 67,162 |
| Europe Geography Quiz #2 | 0 | - | 4.56 | 67,628 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 66,289 |
| Europe Geography Quiz #5 | 0 | - | 4.54 | 57,944 |
| European Geography By Letter - S #1 | 0 | - | 4.58 | 94,026 |
| European Geography By Letter - B #2 | 0 | - | 4.74 | 62,208 |
| Regions of France | 0 | - | 4.63 | 100,738 |
| France Immigration by Country | 0 | - | 4.80 | 69,083 |
| German Groups of Things | 0 | - | 4.43 | 36,004 |
| Capitals of German States | 0 | - | 4.71 | 27,228 |
| Chancellors of Germany, 1949–present | 0 | - | 4.56 | 19,596 |
| Germany True or False? | 0 | - | 4.63 | 44,541 |
| Largest Islands of Greece | 0 | - | 4.57 | 39,919 |
| Olympian Gods Quiz | 0 | - | 4.96 | 457,681 |
| Name that Greek Letter | 0 | - | 4.94 | 296,220 |
| Ancient Greek Words | 0 | - | 4.90 | 97,701 |
| Capitals of Italian Regions | 0 | - | 4.52 | 26,157 |
| Countries by Official Language | 0 | - | 4.96 | 172,961 |
| Places in their Native Language #1 | 0 | - | 4.86 | 210,873 |
| Places in their Native Language #2 | 0 | - | 4.88 | 113,371 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,589 |
| Countries in their Native Language | 0 | - | 4.98 | 178,517 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,600 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 400,143 |
| Two Letter Roman Numerals | 0 | - | 4.98 | 48,803 |
| The Vikings! | 0 | - | 4.45 | 27,123 |
| Sweden Immigration by Country | 0 | - | 4.66 | 42,383 |
| The Portuguese Empire | 0 | - | 4.54 | 11,345 |
| British Words Quiz #2 | 0 | - | 4.03 | 106,933 |
| United Kingdom A-Z | 0 | - | 4.53 | 80,989 |
| Champions League Top 4 | 0 | - | 4.79 | 105,668 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,346,458 |
| Asia Map Quiz | 0 | - | 4.99 | 787,313 |
| Africa Map Quiz | 0 | - | 5.00 | 1,941,727 |
| Official Languages of South Africa | 0 | - | 4.54 | 24,923 |
| Oceania Map Quiz | 0 | - | 4.98 | 568,960 |
| European Physical Geography | 0 | - | 4.20 | 31,943 |
| Slovakia... or Slovenia? | 0 | - | 4.79 | 39,707 |
| History of Austria | 0 | - | 4.68 | 16,412 |
| Geography of the French Empire | 0 | - | 4.49 | 25,439 |
| The French Revolution | 0 | - | 4.45 | 21,952 |
| France Multiple Choice | 0 | - | 4.40 | 38,668 |
| History of France Quiz | 0 | - | 4.55 | 39,718 |
| History of Ireland Quiz | 0 | - | 4.44 | 18,943 |
| History of Italy | 0 | - | 4.49 | 29,820 |
| History of The Netherlands | 0 | - | 4.42 | 15,786 |
| Kings of Spain Quiz | 0 | - | 4.12 | 12,850 |
| Canary Islands | 0 | - | 4.61 | 16,565 |
| Switzerland Immigration by Country | 0 | - | 4.79 | 21,264 |
| British Spellings Quiz | 0 | - | 4.04 | 94,709 |
| British Groups of Things | 0 | - | 4.26 | 80,168 |
| United Kingdom Decoder | 0 | - | 4.27 | 38,750 |
| British Monopoly Board | 0 | - | 4.51 | 39,271 |
| South and Central Asia Map Quiz | 0 | - | 4.93 | 80,114 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,282,733 |
| Countries of Africa | 0 | - | 5.00 | 2,172,900 |
| African East Coast | 0 | - | 4.97 | 84,386 |
| Western Africa Map Quiz | 0 | - | 4.97 | 61,072 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.95 | 40,473 |
| Australia Map Quiz | 0 | - | 4.95 | 320,045 |
| American Countries on the Pacific Coast | 0 | - | 4.81 | 46,191 |
| United States Map Quiz | 0 | - | 4.98 | 3,906,615 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 195,541 |
| Countries with Territorial Claims in Antarctica | 0 | - | 4.93 | 86,686 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,370 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 336,201 |
| European Geography By Letter - E | 0 | - | 4.21 | 105,574 |
| European Geography By Letter - F | 0 | - | 4.16 | 85,392 |
| European Geography By Letter - H | 0 | - | 4.31 | 89,016 |
| European Geography By Letter - G | 0 | - | 4.25 | 95,225 |
| European Geography By Letter - I | 0 | - | 4.10 | 88,906 |
| European Geography By Letter - K | 0 | - | 4.17 | 64,613 |
| European Geography By Letter - O | 0 | - | 4.27 | 57,864 |
| European Geography By Letter - R | 0 | - | 4.40 | 87,647 |
| European Geography by Letter - W | 0 | - | 4.22 | 78,340 |
| European Geography By Letter - T | 0 | - | 4.39 | 70,981 |
| Europe Geography Quiz #3 | 0 | - | 4.32 | 60,026 |
| European Geography By Letter - S #2 | 0 | - | 4.17 | 46,841 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 92,614 |
| European Geography A-Z | 0 | - | 4.37 | 45,464 |
| Country Codes of Europe | 0 | - | 3.34 | 12,758 |
| The Only European Country ... | 0 | - | 4.94 | 178,981 |
| Embarrassing Chapters in Russian History | 0 | - | 3.80 | 19,352 |
| Austria... or Australia? | 0 | - | 4.79 | 98,125 |
| Capitals of French Regions | 0 | - | 4.40 | 14,787 |
| Presidents of France | 0 | - | 4.23 | 20,265 |
| Word Chain - France | 0 | - | 4.38 | 40,038 |
| Famous Germans | 0 | - | 4.39 | 35,209 |
| Ancient Greek Trivia | 0 | - | 4.55 | 63,452 |
| Figures from Greek Mythology | 0 | - | 4.92 | 169,595 |
| Famous Italians | 0 | - | 4.40 | 66,393 |
| Italian Foods | 0 | - | 4.25 | 64,373 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,575 |
| Every Country in its Official/Native Language | 0 | - | 4.96 | 17,512 |
| German-Speaking Countries | 0 | - | 4.88 | 117,613 |
| French Food Words | 0 | - | 4.81 | 175,630 |
| Ancient Roman Trivia #2 | 0 | - | 4.55 | 35,424 |
| Geography of the Roman Empire | 0 | - | 4.55 | 48,556 |
| Roman Names for Places | 0 | - | 4.67 | 41,598 |
| Byzantine History | 0 | - | 4.87 | 26,257 |
| Most Common First Names in Spain | 0 | - | 4.25 | 43,632 |
| History of Spain Quiz | 0 | - | 4.33 | 19,587 |
| Real Madrid 2010's Starting XI | 0 | - | 4.86 | 51,515 |
| British Words Quiz #1 | 0 | - | 3.78 | 236,212 |
| British Foods | 0 | - | 3.85 | 47,061 |
| Most Common Surnames in the UK | 0 | - | 4.18 | 65,831 |
| British and American Word Differences | 0 | - | 2.66 | 44,410 |
| Counties of England | 0 | - | 4.96 | 691,908 |
| British Geography Quiz #2 | 0 | - | 4.28 | 26,346 |
| Wonderwall Lyrics | 0 | - | 4.22 | 68,873 |
| Best-Selling British Musical Acts | 0 | - | 4.47 | 43,575 |
| Bridges of London | 0 | - | 4.11 | 9,367 |
