| World's Longest Rivers | 0 | - | 4.87 | 121,075 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,842 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,515 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,744 |
| North Sea Countries | 0 | - | 4.92 | 86,610 |
| Black Sea Countries | 0 | - | 4.87 | 60,342 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,020 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,117 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,958 |
| Seas on the World Map | 0 | - | 4.96 | 133,836 |
| Seas of the World | 0 | - | 5.00 | 154,379 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,381 |
| Countries with Fjords | 0 | - | 4.93 | 100,214 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,280 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,185 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,935 |
| Biggest Lakes in the World | 0 | - | 4.62 | 89,002 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,112 |
| Famous Rivers | 0 | - | 4.74 | 104,528 |
| City to River #1 | 0 | - | 4.59 | 35,745 |
| Most Populous River Basins | 0 | - | 4.61 | 39,548 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,122 |
| Countries With No Rivers | 0 | - | 4.96 | 76,036 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,251 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,207 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,446 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,158 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,152 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,457 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,867 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,610 |
| Megadiverse Countries | 0 | - | 4.97 | 133,907 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,715 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,237 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,001 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,915 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,689 |
| Rivers by City | 0 | - | 4.38 | 31,636 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,785 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,923 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,923 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,338 |
| Geologic Time Scale | 0 | - | 4.46 | 9,920 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,762 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,735 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,200 |
| Biggest City by River | 0 | - | 4.41 | 52,697 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,320 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,979 |
| Boundary Waters | 0 | - | 4.92 | 88,051 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,822 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,298 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,315 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,850 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,926,931 |
| Landlocked Countries | 0 | - | 4.99 | 413,702 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,165 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,013 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,642 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,024 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,196 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,627 |
| Himalayan Countries | 0 | - | 4.95 | 135,391 |
| Andean Countries | 0 | - | 4.94 | 82,837 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,231 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,227 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,918 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,620 |
| Danube Countries | 0 | - | 4.97 | 71,090 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,774 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,543 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,499 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,417 |
| European Landlocked Countries | 0 | - | 4.99 | 145,762 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,224 |
| Countries with the Most Species | 0 | - | 4.99 | 95,246 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,360 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,201 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,961 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,580 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,954 |
| Countries in the Alps | 0 | - | 4.86 | 116,835 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,580 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,273 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,017 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,428 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,179 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,010 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,588 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,763 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,324 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,067 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,046 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,458 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,754 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,759 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,088 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,653 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,777 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,339 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,696 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,607 |
| Largest Countries By Category | 0 | - | 4.97 | 156,773 |
| Countries by Countries | 0 | - | 4.96 | 62,264 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,396 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,333 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,112 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,776 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,619 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,720 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,489 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,566 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,240 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,439 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,627 |
| Longest International Borders | 0 | - | 4.99 | 263,548 |
| Countries with Three Borders | 0 | - | 4.96 | 36,181 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,602 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,679 |
| Demonym of Every Country | 0 | - | 4.91 | 58,647 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,105 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,328 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,143 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,887 |
| Island Countries | 0 | - | 4.99 | 707,662 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,564 |
| Northernmost Countries | 0 | - | 4.99 | 357,769 |
| Countries of South America | 0 | - | 5.00 | 914,897 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,635 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,654 |
| "Land" Countries | 0 | - | 4.98 | 333,677 |
| Top World Languages | 0 | - | 4.92 | 813,271 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,538 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,911 |
| All Country Flags of the World | 0 | - | 5.00 | 3,603,155 |
| Rivers on Borders | 0 | - | 4.02 | 22,638 |
| Rivers A-Z | 0 | - | 4.35 | 32,685 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,165 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,216 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,524 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,401 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,037 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,238 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,685 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,290 |
| Countries with Megacities | 0 | - | 4.99 | 247,015 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,167 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,008 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,593 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,911 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,533 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,793 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,966 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,664 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,613 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,651 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,472 |
| Countries by Capital City | 0 | - | 5.00 | 66,681 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,350 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,913 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,462 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,421 |
| Moved Capital Cities | 0 | - | 4.96 | 73,596 |
| Countries by Official Language | 0 | - | 4.95 | 192,789 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,154 |
| Countries in their Native Language | 0 | - | 4.99 | 196,654 |
| Independence from Whom | 0 | - | 4.99 | 209,715 |
| Subdivisions by Country | 0 | - | 4.86 | 50,070 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,773 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,813 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,863 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,675 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,008 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,036 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,218 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,748 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,583 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,427 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,501 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,508 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,684 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,032 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,611 |
| World Map Quiz | 0 | - | 4.81 | 63,502 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,712 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,339 |
| Countries by Founding Story | 0 | - | 4.95 | 76,553 |
| Countries by Road Signs | 0 | - | 4.98 | 53,107 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,368 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,998 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,960 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,793 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,863 |
