| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,744 |
| North Sea Countries | 0 | - | 4.92 | 86,608 |
| 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 | 63,116 |
| Seas on the World Map | 0 | - | 4.96 | 133,833 |
| Seas of the World | 0 | - | 5.00 | 154,375 |
| World's Longest Rivers | 0 | - | 4.87 | 121,073 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,839 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,514 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,958 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,381 |
| Countries with Fjords | 0 | - | 4.93 | 100,212 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,280 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,184 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,204 |
| Biggest Lakes in the World | 0 | - | 4.62 | 89,002 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,111 |
| 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 | 40,121 |
| Countries With No Rivers | 0 | - | 4.96 | 76,035 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,251 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,157 |
| 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 | 86,863 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,609 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,445 |
| 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 | 74,234 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,689 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,920 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,001 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,915 |
| Rivers by City | 0 | - | 4.38 | 31,636 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,784 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,923 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,338 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,762 |
| Geologic Time Scale | 0 | - | 4.46 | 9,920 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,197 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,735 |
| 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 | 88,047 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,818 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,296 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,312 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,850 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,925,692 |
| Landlocked Countries | 0 | - | 4.99 | 413,689 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,084 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,479 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,163 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,009 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,640 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,019 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,079 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,297 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,141 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,880 |
| Island Countries | 0 | - | 4.99 | 707,653 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,618 |
| Himalayan Countries | 0 | - | 4.95 | 135,384 |
| Andean Countries | 0 | - | 4.94 | 82,835 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,225 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,226 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,914 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,618 |
| Danube Countries | 0 | - | 4.97 | 71,089 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,769 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,541 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,496 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,411 |
| European Landlocked Countries | 0 | - | 4.99 | 145,760 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,221 |
| Countries with the Most Species | 0 | - | 4.99 | 95,245 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,356 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,200 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,960 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,579 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,832 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,576 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,015 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,427 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,174 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,009 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,585 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,761 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,316 |
| 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 | 103,455 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,753 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,758 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,080 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,652 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,255 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,774 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,330 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,691 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,607 |
| Largest Countries By Category | 0 | - | 4.97 | 156,770 |
| Countries by Countries | 0 | - | 4.96 | 62,263 |
| 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 | 47,332 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,775 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,538 |
| Northernmost Countries | 0 | - | 4.99 | 357,761 |
| Countries of South America | 0 | - | 5.00 | 914,883 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,606 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,611 |
| "Land" Countries | 0 | - | 4.98 | 333,673 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,719 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,488 |
| Top World Languages | 0 | - | 4.92 | 813,249 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,564 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,240 |
| Rivers on Borders | 0 | - | 4.02 | 22,638 |
| Rivers A-Z | 0 | - | 4.35 | 32,685 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,432 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,624 |
| 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 | 47,676 |
| Demonym of Every Country | 0 | - | 4.91 | 58,646 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,165 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,521 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,277 |
| Countries with Megacities | 0 | - | 4.99 | 246,996 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,157 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,000 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,580 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,899 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,788 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,964 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,662 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,613 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,647 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,471 |
| Countries by Capital City | 0 | - | 5.00 | 66,676 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,344 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,913 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,419 |
| Moved Capital Cities | 0 | - | 4.96 | 73,596 |
| Countries by Official Language | 0 | - | 4.95 | 192,785 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,149 |
| Countries in their Native Language | 0 | - | 4.99 | 196,646 |
| Independence from Whom | 0 | - | 4.99 | 209,712 |
| Subdivisions by Country | 0 | - | 4.86 | 50,069 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,769 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,809 |
| 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 | 161,671 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,008 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,035 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,152 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,217 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,748 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,581 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,426 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,500 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,506 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,682 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,030 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,494 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,609 |
| World Map Quiz | 0 | - | 4.81 | 63,499 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,706 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,336 |
| Countries by Founding Story | 0 | - | 4.95 | 76,551 |
| Countries by Road Signs | 0 | - | 4.98 | 53,105 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,365 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,997 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,959 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,787 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,860 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,067 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,281 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,951 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,339 |
| Widest Countries East to West | 0 | - | 4.92 | 128,610 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,218 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,223 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,570 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,694 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,638 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,049 |
