| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,113 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,341 |
| World's Longest Rivers | 0 | - | 4.90 | 137,458 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,140 |
| North Sea Countries | 0 | - | 4.92 | 87,638 |
| Black Sea Countries | 0 | - | 4.87 | 60,709 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,537 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,634 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,975 |
| Seas on the World Map | 0 | - | 4.96 | 135,846 |
| Seas of the World | 0 | - | 5.00 | 158,115 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,008 |
| Countries with Fjords | 0 | - | 4.94 | 101,239 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,853 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,663 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 97,058 |
| Countries With No Rivers | 0 | - | 4.96 | 77,070 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,871 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,869 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,607 |
| Famous Rivers | 0 | - | 4.75 | 105,190 |
| City to River #1 | 0 | - | 4.59 | 35,891 |
| Most Populous River Basins | 0 | - | 4.55 | 39,796 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,209 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,444 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,779 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,299 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,282 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,705 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,865 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,936 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,854 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,124 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,724 |
| Megadiverse Countries | 0 | - | 4.96 | 135,199 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,373 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,064 |
| Rivers by City | 0 | - | 4.38 | 31,766 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,186 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,074 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,604 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,221 |
| Geologic Time Scale | 0 | - | 4.41 | 10,059 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,274 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,843 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,701 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,905 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,033 |
| Biggest City by River | 0 | - | 4.38 | 52,939 |
| Boundary Waters | 0 | - | 4.92 | 88,712 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,368 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,570 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,167 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,848 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,782,633 |
| Landlocked Countries | 0 | - | 4.99 | 424,554 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,856 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,287 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,811 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,846 |
| World Capitals Quiz | 0 | - | 5.00 | 5,099,196 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,644 |
| Himalayan Countries | 0 | - | 4.94 | 139,780 |
| Andean Countries | 0 | - | 4.94 | 85,190 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,368 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,652 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,935 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,227 |
| Danube Countries | 0 | - | 4.97 | 72,274 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,420 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,708 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,857 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,360 |
| European Landlocked Countries | 0 | - | 4.99 | 147,458 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,092 |
| Countries with the Most Species | 0 | - | 4.99 | 103,489 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,238 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,710 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,822 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,749 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,481 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,907 |
| Countries in the Alps | 0 | - | 4.87 | 118,586 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,322 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,599 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,875 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,890 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,818 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,138 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,226 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,763 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,337 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,068 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,795 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,662 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,452 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,687 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,774 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,529 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,525 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,487 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,214 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,848 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,429 |
| Largest Countries By Category | 0 | - | 4.97 | 158,656 |
| Countries by Countries | 0 | - | 4.96 | 63,512 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,098 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,644 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,284 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,988 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,796,396 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,347 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,951 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,717 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,588 |
| Rivers on Borders | 0 | - | 4.02 | 22,730 |
| Rivers A-Z | 0 | - | 4.35 | 32,843 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,762 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,483 |
| Longest International Borders | 0 | - | 4.99 | 265,627 |
| Countries with Three Borders | 0 | - | 4.96 | 36,724 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,295 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,437 |
| Demonym of Every Country | 0 | - | 4.90 | 61,318 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,429 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,867 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,314 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,991 |
| Island Countries | 0 | - | 4.99 | 712,085 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,789 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,312 |
| Northernmost Countries | 0 | - | 4.99 | 363,418 |
| Countries of South America | 0 | - | 5.00 | 930,948 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,322 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,479 |
| "Land" Countries | 0 | - | 4.98 | 338,066 |
| Europe Map Quiz | 0 | - | 5.00 | 4,782,363 |
| All Country Flags of the World | 0 | - | 5.00 | 3,703,224 |
| Top World Languages | 0 | - | 4.92 | 828,214 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,684 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,877 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,297 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,026 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,819 |
| Countries with Megacities | 0 | - | 4.99 | 266,430 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,527 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,921 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,819 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,040 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,278 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,091 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,169 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,863 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,054 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,026 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,928 |
| Countries by Capital City | 0 | - | 5.00 | 69,184 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,726 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,100 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,324 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,694 |
| Moved Capital Cities | 0 | - | 4.96 | 74,572 |
| Countries by Official Language | 0 | - | 4.95 | 195,776 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,314 |
| Countries in their Native Language | 0 | - | 4.99 | 199,559 |
| Independence from Whom | 0 | - | 4.99 | 212,776 |
| Subdivisions by Country | 0 | - | 4.87 | 50,569 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,233 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,766 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,483 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,385 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,184 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,446 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,767 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,924 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,511 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,782 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,223 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,218 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,314 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,379 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,104 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,516 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,635 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,042 |
| World Map Quiz | 0 | - | 4.81 | 65,464 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,638 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,591 |
| Countries by Founding Story | 0 | - | 4.95 | 77,679 |
| Countries by Road Signs | 0 | - | 4.98 | 54,258 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,006 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,949 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,437 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,242 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,294 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,415 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,609 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,621 |
