| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 164,192 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,266 |
| World's Longest Rivers | 0 | - | 4.90 | 136,949 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,058 |
| North Sea Countries | 0 | - | 4.92 | 87,462 |
| Black Sea Countries | 0 | - | 4.87 | 60,640 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,429 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,537 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,653 |
| Seas on the World Map | 0 | - | 4.96 | 135,489 |
| Seas of the World | 0 | - | 5.00 | 157,256 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,881 |
| Countries with Fjords | 0 | - | 4.94 | 101,000 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,732 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,541 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,884 |
| Countries With No Rivers | 0 | - | 4.96 | 76,884 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,236 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,712 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,458 |
| Famous Rivers | 0 | - | 4.75 | 105,036 |
| City to River #1 | 0 | - | 4.59 | 35,857 |
| Most Populous River Basins | 0 | - | 4.55 | 39,738 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,895 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,378 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,542 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,254 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,247 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,645 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,611 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,773 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,762 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,007 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,541 |
| Megadiverse Countries | 0 | - | 4.96 | 134,977 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,285 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,022 |
| Rivers by City | 0 | - | 4.38 | 31,735 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,089 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,031 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,532 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,127 |
| Geologic Time Scale | 0 | - | 4.41 | 10,031 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 29,004 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,815 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,584 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,306 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,024 |
| Biggest City by River | 0 | - | 4.38 | 52,876 |
| Boundary Waters | 0 | - | 4.92 | 88,539 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,227 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,218 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,643 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,562 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,552,462 |
| Landlocked Countries | 0 | - | 4.99 | 421,579 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,688 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,983 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,354 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,359 |
| World Capitals Quiz | 0 | - | 5.00 | 5,081,059 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,249 |
| Himalayan Countries | 0 | - | 4.95 | 138,542 |
| Andean Countries | 0 | - | 4.93 | 84,507 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,693 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,687 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,325 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,726 |
| Danube Countries | 0 | - | 4.97 | 71,957 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,957 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,378 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,219 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,689 |
| European Landlocked Countries | 0 | - | 4.99 | 147,084 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,554 |
| Countries with the Most Species | 0 | - | 4.99 | 103,194 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,691 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,558 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,701 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,509 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,192 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,613 |
| Countries in the Alps | 0 | - | 4.87 | 118,144 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,838 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,968 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,617 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,560 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,448 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,918 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,623 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,455 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,154 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,807 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,629 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,492 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,181 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,431 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,483 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,800 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,275 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 63,085 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,995 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,734 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,981 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,186 |
| Largest Countries By Category | 0 | - | 4.97 | 158,140 |
| Countries by Countries | 0 | - | 4.96 | 63,149 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,633 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,268 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,554 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,951 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,639 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,893 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,679 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,846 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,473 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,478 |
| Rivers on Borders | 0 | - | 4.02 | 22,704 |
| Rivers A-Z | 0 | - | 4.35 | 32,791 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,898 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,266 |
| Longest International Borders | 0 | - | 4.99 | 265,131 |
| Countries with Three Borders | 0 | - | 4.96 | 36,589 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,101 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,193 |
| Demonym of Every Country | 0 | - | 4.91 | 60,586 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,252 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,591 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,398 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,965 |
| Island Countries | 0 | - | 4.99 | 710,901 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,382,709 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,049,370 |
| Northernmost Countries | 0 | - | 4.99 | 361,779 |
| Countries of South America | 0 | - | 5.00 | 926,753 |
| Countries of Oceania | 0 | - | 5.00 | 1,056,161 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,876,029 |
| "Land" Countries | 0 | - | 4.98 | 337,225 |
| Europe Map Quiz | 0 | - | 5.00 | 4,768,481 |
| All Country Flags of the World | 0 | - | 5.00 | 3,675,369 |
| Top World Languages | 0 | - | 4.92 | 823,739 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,443 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,508 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,447,547 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,826 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,788 |
| Countries with Megacities | 0 | - | 4.99 | 264,328 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,646 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,414 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,912 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,481 |
| Biggest Cities in the World | 0 | - | 4.91 | 800,386 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,379 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,461 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,510 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,626 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,423 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,232 |
| Countries by Capital City | 0 | - | 5.00 | 68,544 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,310 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,769 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,928 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,343 |
| Moved Capital Cities | 0 | - | 4.96 | 74,300 |
| Countries by Official Language | 0 | - | 4.95 | 195,177 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,262 |
| Countries in their Native Language | 0 | - | 4.99 | 198,972 |
| Independence from Whom | 0 | - | 4.99 | 211,991 |
| Subdivisions by Country | 0 | - | 4.86 | 50,413 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,659 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,012 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,331 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,197 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,091 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,064 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,573 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,406 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,004 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,624 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,126 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,608 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,851 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,179 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,943 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,332 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,472 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,071 |
| World Map Quiz | 0 | - | 4.81 | 65,034 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,077 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,313 |
| Countries by Founding Story | 0 | - | 4.95 | 77,333 |
| Countries by Road Signs | 0 | - | 4.98 | 53,979 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,007 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,237 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,955 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,096 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,844 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,977 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,265 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,416 |
