| Countries With No Rivers | 0 | - | 4.96 | 76,010 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,217 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,430 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,831 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,580 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,670 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,205 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,873 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,361 |
| Countries with Fjords | 0 | - | 4.93 | 100,181 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,266 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,164 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,675 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,307 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,741 |
| World's Longest Rivers | 0 | - | 4.87 | 121,024 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,723 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,166 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,734 |
| North Sea Countries | 0 | - | 4.92 | 86,587 |
| Black Sea Countries | 0 | - | 4.87 | 60,330 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,010 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,094 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,944 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,115 |
| Seas on the World Map | 0 | - | 4.96 | 133,784 |
| Seas of the World | 0 | - | 5.00 | 154,250 |
| Biggest City by River | 0 | - | 4.41 | 52,690 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,423 |
| African Great Lakes | 0 | - | 4.82 | 65,100 |
| Megadiverse Countries | 0 | - | 4.97 | 133,866 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,330 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,625 |
| Geologic Time Scale | 0 | - | 4.46 | 9,916 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,910 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,979 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,097 |
| Famous Rivers | 0 | - | 4.74 | 104,494 |
| City to River #1 | 0 | - | 4.59 | 35,743 |
| Most Populous River Basins | 0 | - | 4.61 | 39,540 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,109 |
| Largest City by Island | 0 | - | 4.87 | 71,006 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,730 |
| African Island Countries | 0 | - | 4.96 | 100,739 |
| Islands by Country #1 | 0 | - | 4.87 | 174,446 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,151 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,140 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,449 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,279 |
| Richest Island Countries | 0 | - | 4.84 | 99,468 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,978 |
| Rivers on Borders | 0 | - | 4.02 | 22,636 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,986 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,909 |
| Rivers by City | 0 | - | 4.38 | 31,631 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,768 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,919 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,795 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,238 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,892,074 |
| Landlocked Countries | 0 | - | 4.99 | 413,289 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,776 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,818 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,059 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,131 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,137 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,962 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,549 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,904 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,262 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,439 |
| Himalayan Countries | 0 | - | 4.95 | 135,221 |
| Andean Countries | 0 | - | 4.94 | 82,763 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,170 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,111 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,839 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,547 |
| Danube Countries | 0 | - | 4.97 | 71,046 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,714 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,503 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,395 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,326 |
| European Landlocked Countries | 0 | - | 4.99 | 145,717 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,143 |
| Countries with the Most Species | 0 | - | 4.99 | 95,224 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,287 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,939 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,549 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,920 |
| Countries in the Alps | 0 | - | 4.87 | 116,770 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,526 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,187 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,985 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,389 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,115 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,968 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,529 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,725 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,091 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,019 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,182 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,022 |
| Asian Island Nations | 0 | - | 4.63 | 93,732 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,418 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,721 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,997 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,610 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,236 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,733 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,086 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,535 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,574 |
| Largest Countries By Category | 0 | - | 4.97 | 156,697 |
| Countries by Countries | 0 | - | 4.96 | 62,225 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,324 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,952 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,316 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,721 |
| Islands by Country #2 | 0 | - | 4.80 | 76,968 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,764 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,714 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,676 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,473 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,719 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,063 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,523 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,224 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,442 |
| Rivers A-Z | 0 | - | 4.35 | 32,677 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,316 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,591 |
| Longest International Borders | 0 | - | 4.99 | 263,488 |
| Countries with Three Borders | 0 | - | 4.96 | 36,162 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,585 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,642 |
| East Asian Islands on the Map | 0 | - | 4.54 | 32,911 |
| Demonym of Every Country | 0 | - | 4.91 | 58,614 |
| Islands A-Z | 0 | - | 4.46 | 116,712 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,469 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,271 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,008 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,585 |
| Island Countries | 0 | - | 4.99 | 707,479 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,408 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,035 |
| Northernmost Countries | 0 | - | 4.99 | 357,538 |
| Countries of South America | 0 | - | 5.00 | 914,142 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,709 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,067 |
| "Land" Countries | 0 | - | 4.98 | 333,554 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,806 |
| All Country Flags of the World | 0 | - | 5.00 | 3,598,948 |
| Top World Languages | 0 | - | 4.92 | 812,691 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,889 |
| Asian Islands | 0 | - | 4.49 | 20,763 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,434 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,152 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,444 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,455 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,464 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,995 |
| Countries with Megacities | 0 | - | 4.99 | 246,516 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,913 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,797 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,716 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,367 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,754 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,954 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,688 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,884 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,613 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,565 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,553 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,344 |
| Countries by Capital City | 0 | - | 5.00 | 66,563 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,284 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,870 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,226 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,389 |
| Capital Cities Nearest to Islands | 0 | - | 4.55 | 13,246 |
| Moved Capital Cities | 0 | - | 4.96 | 73,554 |
| Capitals by River | 0 | - | 4.55 | 48,228 |
| Countries by Official Language | 0 | - | 4.95 | 192,702 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,032 |
| Countries in their Native Language | 0 | - | 4.99 | 196,558 |
| Independence from Whom | 0 | - | 4.99 | 209,599 |
| Subdivisions by Country | 0 | - | 4.86 | 50,050 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,681 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,735 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,904 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,406 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,604 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,973 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,834 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,116 |
