| Nordic Countries and Capitals | 0 | - | 4.94 | 76,271 |
| Random European Capital to Country | 0 | - | 4.97 | 151,696 |
| Random European Country to Capital | 0 | - | 4.92 | 134,154 |
| Countries of Europe by Population | 0 | - | 4.98 | 124,788 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 203,623 |
| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 159,577 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 156,154 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 80,002 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.90 | 84,213 |
| European Capitals - Map Quiz | 0 | - | 4.98 | 104,371 |
| Random Asian Capital to Country | 0 | - | 4.97 | 88,477 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 221,050 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 43,067 |
| Summer Olympic City Bids | 0 | - | 4.93 | 36,922 |
| Africa Capitals Quiz | 0 | - | 4.99 | 628,204 |
| Asia Capitals Quiz | 0 | - | 4.98 | 588,316 |
| Olympic Host Countries | 0 | - | 4.98 | 160,729 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 229,808 |
| Official Cities in the UK | 0 | - | 4.87 | 230,390 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.94 | 78,868 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 192,485 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 55,688 |
| Europe Capital to Country | 0 | - | 4.99 | 218,330 |
| Asia Capital to Country | 0 | - | 4.96 | 105,093 |
| EU Capitals with No Hints | 0 | - | 4.95 | 123,354 |
| European Capitals by Map | 0 | - | 4.99 | 91,202 |
| African Capitals by Map | 0 | - | 4.99 | 109,150 |
| South America Capitals Quiz | 0 | - | 5.00 | 415,920 |
| North America Capitals Quiz | 0 | - | 4.99 | 184,301 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 51,613 |
| Asian Capitals by Map | 0 | - | 4.98 | 46,081 |
| Top 10 Most Remote European Capitals | 0 | - | 4.84 | 83,698 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.87 | 78,152 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 77,413 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 71,410 |
| European Coastal Capitals | 0 | - | 4.95 | 76,566 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 46,310 |
| Capitals of Oceania Quiz | 0 | - | 4.98 | 225,543 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.90 | 191,983 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 75,756 |
| European Capitals Furthest from the Sea | 0 | - | 4.93 | 66,556 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 50,518 |
| European Capitals Ending in N | 0 | - | 4.91 | 73,510 |
| Biggest British Empire Countries | 0 | - | 4.66 | 78,587 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 50,326 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 125,985 |
| Biggest Cities in the Commonwealth of Nations | 0 | - | 4.64 | 62,750 |
| Biggest Cities in Germany - Extreme | 0 | - | 4.82 | 43,704 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.97 | 197,633 |
| 100 Biggest Cities in Europe with a Map | 0 | - | 4.97 | 301,788 |
| 250 Biggest Cities in Europe With a Map | 0 | - | 4.89 | 96,328 |
| Biggest Cities in the UK | 0 | - | 4.45 | 92,684 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,517,056 |
| Capitals of Canadian Provinces | 0 | - | 4.86 | 73,079 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 114,865 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 37,962 |
| Most Guessed European Capitals | 0 | - | 4.89 | 96,127 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 61,371 |
| Total United States Immigration by Country | 0 | - | 4.90 | 95,960 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.95 | 182,357 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.81 | 30,613 |
| Every European Country Shape | 0 | - | 4.95 | 170,214 |
| Most-Visited Countries by Americans | 0 | - | 4.86 | 92,125 |
| Countries that Visit the United States the Most | 0 | - | 4.95 | 77,711 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.84 | 85,619 |
| Prime Ministers of the UK | 0 | - | 4.95 | 378,163 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 171,484 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 148,744 |
| Biggest Cities once in the Spanish Empire | 0 | - | 4.87 | 50,588 |
| Biggest Cities in Germany | 0 | - | 4.95 | 261,119 |
| Biggest Cities in Sweden | 0 | - | 4.83 | 37,038 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 90,470 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.82 | 60,742 |
| US State Capitals Quiz - No Hints | 0 | - | 4.98 | 79,272 |
| U.S. State Capitals Map Quiz | 0 | - | 4.91 | 123,814 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.85 | 38,831 |
| Which City in Europe? | 0 | - | 4.85 | 96,872 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 123,515 |
| Countries Most-Visited By Queen Elizabeth II | 0 | - | 4.38 | 47,448 |
| Countries Closest to Alaska | 0 | - | 4.92 | 98,303 |
| Countries Closest to Maine | 0 | - | 4.84 | 58,410 |
| Biggest Trading Partners - UK | 0 | - | 4.86 | 56,433 |
| Countries that Beat the United States | 0 | - | 4.92 | 143,924 |
| U.S. States or European Countries by Area | 0 | - | 4.95 | 70,418 |
| U.S. States or European Countries by Population | 0 | - | 4.98 | 115,036 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 80,147 |
| Top 10 Manchester United Goalscorers | 0 | - | 4.26 | 48,481 |
| Biggest Cities in Europe | 0 | - | 4.75 | 458,845 |
| Biggest Cities once in the Roman Empire | 0 | - | 4.80 | 64,692 |
| Biggest Urban Areas in the UK | 0 | - | 4.40 | 167,188 |
| North American Sports Cities | 0 | - | 4.79 | 159,109 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 93,495 |
| Important Cities in European History | 0 | - | 4.56 | 109,378 |
| European Cities by Map #2 | 0 | - | 4.47 | 44,318 |
| European Cities by Map #1 | 0 | - | 4.59 | 51,626 |
| Asian Cities by Map #1 | 0 | - | 4.49 | 38,839 |
| Mediterranean Cities by Map | 0 | - | 4.47 | 49,030 |
| World Capitals Quiz | 0 | - | 5.00 | 4,463,918 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 73,908 |
| Which City In the United Kingdom? | 0 | - | 4.96 | 74,139 |
| Which City in Canada? | 0 | - | 4.89 | 44,939 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,513,208 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.47 | 46,282 |
| Countries of the Soviet Union | 0 | - | 4.98 | 183,930 |
| Countries with Major League Baseball Players | 0 | - | 4.56 | 52,704 |
| Countries With The Most NHL Hockey Players | 0 | - | 4.45 | 83,093 |
| Countries with the Fastest Marathoners | 0 | - | 4.49 | 84,958 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 48,185 |
| Countries With the Most NBA Players | 0 | - | 4.45 | 80,090 |
| Countries with the Most Summer Olympics Medals | 0 | - | 4.65 | 83,919 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.43 | 51,552 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,024,713 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.47 | 76,885 |
| Countries "Ruled" by King Charles III | 0 | - | 4.79 | 80,565 |
| Countries Closest to United States A-Z | 0 | - | 4.86 | 106,405 |
| NBA Cities Map Quiz | 0 | - | 4.46 | 219,128 |
| MLB Cities Map Quiz | 0 | - | 4.45 | 62,202 |
| U.S. States or European Countries by GDP | 0 | - | 4.98 | 67,710 |
| Sports Teams by State Quiz | 0 | - | 4.18 | 91,051 |
| Boundary Waters | 0 | - | 4.93 | 80,505 |
| World Geography on a Map #1 | 0 | - | 4.93 | 66,897 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 73,913 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 136,294 |
| Most Populous Islands of Europe | 0 | - | 4.53 | 24,031 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.95 | 108,933 |
| Biggest European Cities by Letter | 0 | - | 4.65 | 118,151 |
| Biggest Cities in Europe - Extreme | 0 | - | 4.79 | 68,402 |
| City by Football Clubs | 0 | - | 4.40 | 128,755 |
| Word Scramble - U.K. Cities | 0 | - | 4.57 | 63,179 |
| UK Cities and Towns by Map | 0 | - | 4.56 | 43,646 |
| South American Cities on the Map | 0 | - | 4.55 | 32,959 |
| Southeast Asian Cities by Map | 0 | - | 4.64 | 24,808 |
| British Cities with the Most Tourists | 0 | - | 4.79 | 55,304 |
| 1M Cities by Proximity - United States | 0 | - | 4.49 | 136,036 |
| Winter Olympics Hosts Quiz | 0 | - | 4.36 | 72,552 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.58 | 130,018 |
| Biggest Cities in a Strip of the United States Map | 0 | - | 4.72 | 36,285 |
| Random U.S. City to State | 0 | - | 4.43 | 65,175 |
| Random European City to Country | 0 | - | 4.72 | 105,737 |
| European Cities with the Biggest Economies | 0 | - | 4.58 | 35,103 |
| Cities in the United Kingdom by Proximity | 0 | - | 4.57 | 36,730 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,370,654 |
| World Capitals Closest to Jerusalem | 0 | - | 4.45 | 42,690 |
| Asian Coastal Capitals | 0 | - | 4.56 | 20,137 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 63,184 |
| European Capitals with the Least Sunshine | 0 | - | 4.48 | 47,434 |
| Word Scramble - European Capitals | 0 | - | 4.77 | 86,721 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.62 | 13,576 |
| Melbourne Suburbs | 0 | - | 4.79 | 37,147 |
| European Cities by Clue | 0 | - | 4.72 | 84,818 |
| Boroughs of London | 0 | - | 4.59 | 76,855 |
| London Geography | 0 | - | 4.47 | 55,684 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 338,819 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 318,108 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 352,152 |
| Countries on the Equator | 0 | - | 4.82 | 132,893 |
| Members of the Arab League | 0 | - | 4.82 | 59,492 |
| Island Countries Quiz | 0 | - | 4.99 | 639,171 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,295 |
| Himalayan Countries | 0 | - | 4.95 | 102,646 |
| Andean Countries | 0 | - | 4.90 | 57,034 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,877 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,626 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,952 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,588 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,783 |
| Danube Countries | 0 | - | 4.97 | 56,381 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,430 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,623 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,431 |
| Countries with the Worst Passports | 0 | - | 4.87 | 48,845 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,460 |
| European Landlocked Countries | 0 | - | 4.99 | 114,863 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,813 |
| Countries with the Most Species | 0 | - | 4.99 | 89,100 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,886 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,464 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,830 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,807 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,150 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 58,478 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,726 |
| Countries in the Alps | 0 | - | 4.82 | 101,911 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,718 |
| Countries with American Expatriates | 0 | - | 4.59 | 40,818 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,918 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,163 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,780 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,426 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,112 |
| Most Mentioned Enemies of the USA | 0 | - | 4.79 | 158,604 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,106 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,793 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,087 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,212 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,949 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,347 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,438 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,025 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,546 |
