| Federal Subjects of Russia | 0 | - | 4.95 | 149,346 |
| Countries that Beat Russia | 0 | - | 4.81 | 83,546 |
| European Countries by First 2 Letters | 0 | - | 4.95 | 532,301 |
| Save Europeans by Guessing Countries | 0 | - | 4.86 | 216,471 |
| Countries That Border Russia | 0 | - | 4.98 | 464,357 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,651 |
| European Map without 10 Random Countries | 0 | - | 4.97 | 278,790 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,779 |
| Russia Country Quiz | 0 | - | 4.83 | 115,274 |
| Count to 10 in Europe: Pro | 0 | - | 4.86 | 69,680 |
| Official European Union Languages | 0 | - | 4.97 | 239,691 |
| European Countries in their Native Language | 0 | - | 4.99 | 158,581 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,681 |
| Non-Bordering Countries Closest to Russia | 0 | - | 4.91 | 83,231 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,067 |
| Europe Geography Decoder | 0 | - | 4.86 | 70,286 |
| Countries that Beat Switzerland | 0 | - | 4.88 | 42,042 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,118 |
| Most Guessed Cities in Europe - Not Capitals | 0 | - | 4.83 | 87,984 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,575 |
| All First-Level Subdivisions of Europe on a Map | 0 | - | 4.99 | 175,520 |
| Germany Multiple Choice | 0 | - | 4.84 | 54,674 |
| States of the German Confederation in 1848 | 0 | - | 4.90 | 32,415 |
| "Big Five" European Soccer Champions Since 2000 | 0 | - | 4.97 | 361,272 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 56,531 |
| Add A Letter - Make a European City | 0 | - | 4.90 | 23,497 |
| Celtic Nations | 0 | - | 4.61 | 47,086 |
| Europe Geography Quiz #1 | 0 | - | 4.55 | 71,503 |
| Europe Geography Quiz #2 | 0 | - | 4.57 | 72,160 |
| Europe Geography Quiz #4 | 0 | - | 4.57 | 70,441 |
| Europe Geography Quiz #5 | 0 | - | 4.55 | 61,412 |
| Most Mentioned Allies of Russia | 0 | - | 4.49 | 38,173 |
| Most Mentioned Enemies of Russia | 0 | - | 4.69 | 90,308 |
| Russian History A-Z | 0 | - | 4.35 | 32,184 |
| German Groups of Things | 0 | - | 4.47 | 38,623 |
| Foods in a Full English Breakfast | 0 | - | 4.46 | 103,768 |
| Champions League Winners | 0 | - | 4.92 | 1,015,415 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,615 |
| European Geography By Letter - P #1 | 0 | - | 4.81 | 98,691 |
| Catholic Countries in Europe | 0 | - | 4.83 | 95,719 |
| European Geography By Letter - B #2 | 0 | - | 4.87 | 88,502 |
| Category Elimination - European Geography #3 | 0 | - | 4.86 | 81,917 |
| States of Germany | 0 | - | 4.95 | 154,345 |
| Germany Immigration by Country | 0 | - | 4.86 | 81,656 |
| Regions of Italy | 0 | - | 4.92 | 76,970 |
| Netherlands Immigration by Country | 0 | - | 4.93 | 52,767 |
| Regions of Spain Quiz | 0 | - | 4.90 | 115,239 |
| Cantons of Switzerland | 0 | - | 4.98 | 51,718 |
| 10 Closest Megacities to London | 0 | - | 4.90 | 17,834 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,047 |
| Africa Geography Quiz #1 | 0 | - | 4.93 | 49,558 |
| Most Common U.S. Last Names - Extreme | 0 | - | 4.94 | 175,470 |
| Europe Geography Quiz #3 | 0 | - | 4.35 | 63,874 |
| Biggest Countries in Europe in 1700 | 0 | - | 4.73 | 58,737 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,391 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,813 |
| Croatia Country Quiz | 0 | - | 4.83 | 43,714 |
| Bosnia and Herzegovina Country Quiz | 0 | - | 4.86 | 35,564 |
| Departments of France | 0 | - | 4.93 | 55,068 |
| Word Chain - France | 0 | - | 4.38 | 42,925 |
| Italian Foods | 0 | - | 4.30 | 73,231 |
| Countries Surrounding Rome | 0 | - | 4.97 | 49,727 |
| British Groups of Things | 0 | - | 4.26 | 83,000 |
| United Kingdom Decoder | 0 | - | 4.29 | 40,099 |
| England or Wales? | 0 | - | 4.94 | 45,946 |
| All UEFA Champions League Teams Ever | 0 | - | 4.85 | 131,993 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,273 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,645 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,735 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,360 |
| Name a Valid African Country | 0 | - | 4.98 | 154,972 |
| Countries that Beat the United States | 0 | - | 4.93 | 168,584 |
| Countries that Beat Canada | 0 | - | 4.91 | 98,950 |
| Pre-Euro Currencies | 0 | - | 4.44 | 52,738 |
| European Countries with the Fewest Overnight Visitors | 0 | - | 4.80 | 41,718 |
| Word Scramble - European Countries | 0 | - | 4.73 | 142,277 |
| Top 20 Football Clubs in Europe | 0 | - | 4.48 | 120,887 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,900 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,004 |
| Slavic Languages | 0 | - | 4.68 | 54,675 |
| Countries that Border Poland | 0 | - | 4.99 | 173,110 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 166,392 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 102,678 |
| Countries that Border Hungary | 0 | - | 4.98 | 104,980 |
| North Macedonia Country Quiz | 0 | - | 4.81 | 28,030 |
| Moldova Country Quiz | 0 | - | 4.82 | 31,017 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,031 |
| The Trojan War | 0 | - | 4.83 | 39,967 |
| Letters of the Greek Alphabet | 0 | - | 4.97 | 651,565 |
| Name that Greek Letter | 0 | - | 4.93 | 324,892 |
| Greek Mythology General Knowledge #1 | 0 | - | 4.85 | 112,878 |
| Capitals of Italian Regions | 0 | - | 4.62 | 36,727 |
| Ancient Roman Trivia #1 | 0 | - | 4.85 | 85,562 |
| Roman Emperors | 0 | - | 4.95 | 121,105 |
| Spanish Immigration by Country | 0 | - | 4.63 | 55,614 |
| Most Common First Names in Spain | 0 | - | 4.33 | 55,210 |
| Most Common Surnames in the UK | 0 | - | 4.22 | 69,956 |
| Fictional Characters from Great Britain | 0 | - | 4.24 | 42,085 |
| Countries that Beat Indonesia | 0 | - | 4.86 | 56,446 |
| Top European Languages on a Map | 0 | - | 4.77 | 132,790 |
| Famous Russians | 0 | - | 4.16 | 23,906 |
| History of Russia Quiz | 0 | - | 4.47 | 31,999 |
| Russia Multiple Choice | 0 | - | 4.58 | 40,864 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,788 |
| French Geography Quiz #2 | 0 | - | 4.62 | 23,333 |
| Word Chain - Germany | 0 | - | 4.31 | 22,679 |
| Olympian Gods Quiz | 0 | - | 4.96 | 503,557 |
| History of Italy | 0 | - | 4.55 | 32,139 |
| Word Chain - Italy | 0 | - | 4.07 | 23,216 |
| Italy Multiple Choice | 0 | - | 4.74 | 104,317 |
| Geography of the Dutch Empire | 0 | - | 4.62 | 34,810 |
| Most Common Last Names in Sweden | 0 | - | 4.50 | 15,476 |
| Countries of the Spanish Empire | 0 | - | 4.52 | 77,414 |
| Geography of Spain | 0 | - | 4.59 | 22,174 |
| Word Chain - United Kingdom | 0 | - | 4.05 | 29,400 |
| Members of the British Royal Family | 0 | - | 4.10 | 114,474 |
| Name a Valid English City | 0 | - | 4.19 | 16,815 |
| Dog in the Answers | 0 | - | 4.16 | 68,841 |
| Countries With One Word and Two U's | 0 | - | 4.45 | 51,298 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,390 |
| European Geography By Letter - A | 0 | - | 4.52 | 147,950 |
| European Geography By Letter - B #1 | 0 | - | 4.62 | 121,243 |
| European Geography By Letter - C | 0 | - | 4.43 | 123,556 |
| European Geography By Letter - D | 0 | - | 4.50 | 111,654 |
| European Geography By Letter - L | 0 | - | 4.52 | 114,838 |
| European Geography By Letter - M | 0 | - | 4.69 | 132,256 |
| European Geography By Letter - N | 0 | - | 4.44 | 101,951 |
| European Geography By Letter - R | 0 | - | 4.43 | 94,452 |
| European Geography By Letter - V | 0 | - | 4.42 | 93,703 |
| European Geography By Letter - T | 0 | - | 4.41 | 83,402 |
| Europe Map Quiz | 0 | - | 5.00 | 4,785,955 |
| European Geography By Letter - S #1 | 0 | - | 4.63 | 101,280 |
| Four Letter European Geography #1 | 0 | - | 4.41 | 28,516 |
| Four Letter European Geography #2 | 0 | - | 4.54 | 20,713 |
| Capitals of French Regions | 0 | - | 4.45 | 16,173 |
| Regions of France | 0 | - | 4.70 | 121,990 |
| France Immigration by Country | 0 | - | 4.70 | 76,902 |
| Famous Germans | 0 | - | 4.50 | 55,770 |
| Capitals of German States | 0 | - | 4.74 | 29,064 |
| Chancellors of Germany, 1949–present | 0 | - | 4.60 | 23,530 |
| Germany True or False? | 0 | - | 4.61 | 49,006 |
| Largest Islands of Greece | 0 | - | 4.59 | 48,436 |
| Ancient Greek Words | 0 | - | 4.93 | 112,402 |
| Famous Italians by Clue | 0 | - | 4.45 | 90,328 |
| Two Letter Roman Numerals | 0 | - | 4.97 | 56,487 |
| Provinces of the Netherlands | 0 | - | 4.80 | 41,713 |
| 100 Greatest Britons Quiz | 0 | - | 4.41 | 48,398 |
| British to American Food Translation | 0 | - | 3.38 | 52,031 |
| The Thirteen Dwarves in the Hobbit | 0 | - | 4.81 | 28,802 |
| Name Every Beatles Song | 0 | - | 4.97 | 238,207 |
| Bohemian Rhapsody Lyrics | 0 | - | 4.98 | 292,733 |
| Asia Geography Quiz #1 | 0 | - | 4.70 | 53,652 |
| Asia Geography Quiz #2 | 0 | - | 4.56 | 48,721 |
| Asia Geography Quiz #3 | 0 | - | 4.49 | 32,355 |
| Asian Countries by First 2 Letters | 0 | - | 4.92 | 280,567 |
| Africa Geography Quiz #2 | 0 | - | 4.59 | 33,086 |
| African Countries by First 2 Letters | 0 | - | 4.96 | 269,270 |
| Oceania Map Quiz | 0 | - | 4.98 | 658,906 |
| Australian Capitals | 0 | - | 4.92 | 62,826 |
| Word Chain - Australia | 0 | - | 4.38 | 38,242 |
| U.S. State Nicknames | 0 | - | 4.47 | 50,721 |
| European Physical Geography | 0 | - | 4.26 | 33,589 |
| Albania Country Quiz | 0 | - | 4.54 | 39,235 |
| Geography of Russia | 0 | - | 4.57 | 21,596 |
| Czech Republic Country Quiz | 0 | - | 4.52 | 42,440 |
| Slovakia... or Slovenia? | 0 | - | 4.69 | 42,114 |
| Ukraine Country Quiz | 0 | - | 4.43 | 47,966 |
| Hungary Country Quiz | 0 | - | 4.49 | 43,758 |
| Romania Country Quiz | 0 | - | 4.63 | 54,108 |
| Serbia Country Quiz | 0 | - | 4.44 | 35,199 |
| History of Austria | 0 | - | 4.70 | 17,971 |
| Geography of the French Empire | 0 | - | 4.45 | 27,211 |
| The French Revolution | 0 | - | 4.47 | 24,139 |
| France Multiple Choice | 0 | - | 4.39 | 40,835 |
| History of France | 0 | - | 4.61 | 57,571 |
| Biggest Cities in Germany in 1910 | 0 | - | 4.41 | 23,557 |
| Figures from Greek Mythology | 0 | - | 4.91 | 188,714 |
| Roman Numeral Decoding Quiz | 0 | - | 4.94 | 439,600 |
| The Vikings! | 0 | - | 4.46 | 28,400 |
| Sweden Immigration by Country | 0 | - | 4.53 | 56,366 |
| The Portuguese Empire | 0 | - | 4.58 | 12,101 |
| American to British Word Translation | 0 | - | 4.14 | 139,652 |
| Languages of the United Kingdom | 0 | - | 4.14 | 41,048 |
| United Kingdom A-Z | 0 | - | 4.51 | 88,342 |
| Champions League Top 4 | 0 | - | 4.78 | 138,865 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,137 |
| Asia Map Quiz | 0 | - | 4.99 | 924,563 |
| Africa Map Quiz | 0 | - | 5.00 | 2,127,911 |
| Countries that Beat South Africa | 0 | - | 4.69 | 42,670 |
| Countries that Beat D.R. Congo | 0 | - | 4.75 | 42,003 |
| Oceania Geography Quiz | 0 | - | 4.55 | 22,130 |
| Oceanian Capitals - Map Quiz | 0 | - | 4.96 | 51,413 |
| Australia Map Quiz | 0 | - | 4.95 | 346,064 |
| Hispanic Last Names in the U.S. | 0 | - | 4.31 | 54,850 |
| South American Geography Quiz #2 | 0 | - | 4.41 | 43,933 |
| South American Geography Quiz #1 | 0 | - | 4.63 | 32,876 |
| United States Map Quiz | 0 | - | 4.98 | 4,170,520 |
| American Geography Quiz for Dummies | 0 | - | 4.41 | 69,403 |
| U.S. History for Dummies | 0 | - | 4.47 | 83,390 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,814 |
