| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,085 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,340 |
| World's Longest Rivers | 0 | - | 4.90 | 137,447 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,140 |
| North Sea Countries | 0 | - | 4.92 | 87,635 |
| Black Sea Countries | 0 | - | 4.87 | 60,708 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,534 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,633 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,968 |
| Seas on the World Map | 0 | - | 4.96 | 135,840 |
| Seas of the World | 0 | - | 5.00 | 158,087 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,002 |
| Countries with Fjords | 0 | - | 4.94 | 101,226 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,846 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,659 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 97,051 |
| Countries With No Rivers | 0 | - | 4.96 | 77,066 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,845 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,859 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,599 |
| Famous Rivers | 0 | - | 4.75 | 105,187 |
| City to River #1 | 0 | - | 4.59 | 35,890 |
| Most Populous River Basins | 0 | - | 4.55 | 39,792 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,197 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,441 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,769 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,298 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,280 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,704 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,857 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,931 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,852 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,120 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,720 |
| Megadiverse Countries | 0 | - | 4.96 | 135,190 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,369 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,060 |
| Rivers by City | 0 | - | 4.38 | 31,766 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,185 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,072 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,600 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,219 |
| Geologic Time Scale | 0 | - | 4.41 | 10,059 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,266 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,843 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,696 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,880 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,032 |
| Biggest City by River | 0 | - | 4.38 | 52,938 |
| Boundary Waters | 0 | - | 4.92 | 88,709 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,362 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,555 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,152 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,840 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,775,129 |
| Landlocked Countries | 0 | - | 4.99 | 424,426 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,850 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,280 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,801 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,832 |
| World Capitals Quiz | 0 | - | 5.00 | 5,098,541 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,591 |
| Himalayan Countries | 0 | - | 4.94 | 139,740 |
| Andean Countries | 0 | - | 4.94 | 85,168 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,347 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,602 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,918 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,208 |
| Danube Countries | 0 | - | 4.97 | 72,264 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,401 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,693 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,843 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,336 |
| European Landlocked Countries | 0 | - | 4.99 | 147,445 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,070 |
| Countries with the Most Species | 0 | - | 4.99 | 103,474 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,210 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,707 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,819 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,737 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,470 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,896 |
| Countries in the Alps | 0 | - | 4.87 | 118,569 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,282 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,583 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,854 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,874 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,798 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,128 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,117 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,739 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,056 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,786 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,656 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,443 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,675 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,765 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,493 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,515 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,506 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,476 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,168 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,818 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,421 |
| Largest Countries By Category | 0 | - | 4.97 | 158,635 |
| Countries by Countries | 0 | - | 4.96 | 63,500 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,082 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,361 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,643 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,271 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,971 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,744 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,335 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,947 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,712 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,586 |
| Rivers on Borders | 0 | - | 4.02 | 22,729 |
| Rivers A-Z | 0 | - | 4.35 | 32,842 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,735 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,476 |
| Longest International Borders | 0 | - | 4.99 | 265,613 |
| Countries with Three Borders | 0 | - | 4.96 | 36,720 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,286 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,431 |
| Demonym of Every Country | 0 | - | 4.90 | 61,290 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,157 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,598 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,287 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,900 |
| Island Countries | 0 | - | 4.99 | 712,032 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,529 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,179 |
| Northernmost Countries | 0 | - | 4.99 | 363,377 |
| Countries of South America | 0 | - | 5.00 | 930,801 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,168 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,885,174 |
| "Land" Countries | 0 | - | 4.98 | 338,041 |
| Europe Map Quiz | 0 | - | 5.00 | 4,781,931 |
| All Country Flags of the World | 0 | - | 5.00 | 3,702,324 |
| Top World Languages | 0 | - | 4.92 | 828,079 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,676 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,859 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,131 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,986 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,778 |
| Countries with Megacities | 0 | - | 4.99 | 266,342 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,489 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,897 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,784 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,006 |
| Biggest Cities in the World | 0 | - | 4.92 | 804,143 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,061 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,062 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,852 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,039 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,015 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,905 |
| Countries by Capital City | 0 | - | 5.00 | 69,165 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,713 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,089 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,286 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,681 |
| Moved Capital Cities | 0 | - | 4.96 | 74,561 |
| Countries by Official Language | 0 | - | 4.95 | 195,762 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,290 |
| Countries in their Native Language | 0 | - | 4.99 | 199,544 |
| Independence from Whom | 0 | - | 4.99 | 212,743 |
| Subdivisions by Country | 0 | - | 4.87 | 50,562 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,211 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,755 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,480 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,380 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,179 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,434 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,752 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,896 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,503 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,774 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,222 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,191 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,306 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,374 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,093 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,514 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,629 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,001 |
| World Map Quiz | 0 | - | 4.81 | 65,434 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,578 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,577 |
| Countries by Founding Story | 0 | - | 4.95 | 77,662 |
| Countries by Road Signs | 0 | - | 4.98 | 54,249 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,978 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,939 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,427 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,218 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,284 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,402 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,593 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,617 |
