| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,764 |
| World's Longest Rivers | 0 | - | 4.88 | 121,761 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,811 |
| North Sea Countries | 0 | - | 4.92 | 86,745 |
| Black Sea Countries | 0 | - | 4.87 | 60,404 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,123 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,215 |
| Countries With No Rivers | 0 | - | 4.96 | 76,182 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,014 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,462 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,819 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,129 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,838 |
| Seas on the World Map | 0 | - | 4.96 | 134,665 |
| Seas of the World | 0 | - | 5.00 | 155,296 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,144 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,223 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,985 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,395 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,105 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,478 |
| Countries with Fjords | 0 | - | 4.93 | 100,420 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,431 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,293 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,398 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,862 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,951 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,640 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,455 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,812 |
| Famous Rivers | 0 | - | 4.74 | 104,669 |
| City to River #1 | 0 | - | 4.59 | 35,777 |
| Most Populous River Basins | 0 | - | 4.55 | 39,593 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,198 |
| Biggest City by River | 0 | - | 4.41 | 52,743 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,567 |
| Megadiverse Countries | 0 | - | 4.96 | 134,512 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,106 |
| Rivers by City | 0 | - | 4.38 | 31,667 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,882 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,958 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,378 |
| Rivers and Lakes whose Names are Countries | 0 | - | 4.95 | 45,267 |
| Geologic Time Scale | 0 | - | 4.46 | 9,964 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,073 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,756 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,193 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,177 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,514 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,403 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,993 |
| Rivers on Borders | 0 | - | 4.02 | 22,658 |
| Boundary Waters | 0 | - | 4.92 | 88,203 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,943 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,611 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,756 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,086 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,995 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,131,956 |
| Landlocked Countries | 0 | - | 4.99 | 416,248 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 560,762 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,341 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,295 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,231 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,489 |
| World Capitals Quiz | 0 | - | 5.00 | 5,047,882 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,742 |
| Himalayan Countries | 0 | - | 4.95 | 136,338 |
| Andean Countries | 0 | - | 4.95 | 83,393 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,656 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,886 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,351 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,958 |
| Danube Countries | 0 | - | 4.97 | 71,355 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,151 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,815 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,075 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,022 |
| European Landlocked Countries | 0 | - | 4.99 | 146,081 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,698 |
| Countries with the Most Species | 0 | - | 4.99 | 99,972 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,841 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,312 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,486 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,130 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,784 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,155 |
| Countries in the Alps | 0 | - | 4.86 | 117,283 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,866 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,805 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,226 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,697 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,759 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,218 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,943 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,967 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,767 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,300 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,337 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,188 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,690 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,959 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,971 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,634 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,867 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,401 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,155 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,770 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,468 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,790 |
| Largest Countries By Category | 0 | - | 4.97 | 157,204 |
| Countries by Countries | 0 | - | 4.96 | 62,558 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,819 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,068 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,403 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,588 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,363 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,047 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,737,786 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,094 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,989 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,612 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,866 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,315 |
| Rivers A-Z | 0 | - | 4.35 | 32,734 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,131 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,826 |
| Longest International Borders | 0 | - | 4.99 | 264,246 |
| Countries with Three Borders | 0 | - | 4.96 | 36,330 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,763 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,845 |
| Countries with the Lowest Maximum Elevation | 0 | - | 4.85 | 36,939 |
| Demonym of Every Country | 0 | - | 4.91 | 58,882 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,522 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,576,898 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,655 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,481 |
| Island Countries | 0 | - | 4.99 | 708,680 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,481 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,871 |
| Northernmost Countries | 0 | - | 4.99 | 359,168 |
| Countries of South America | 0 | - | 5.00 | 919,139 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,969 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,373 |
| "Land" Countries | 0 | - | 4.98 | 334,322 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,005 |
| All Country Flags of the World | 0 | - | 5.00 | 3,626,104 |
| Top World Languages | 0 | - | 4.92 | 816,753 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,972 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,256 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,819 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,344 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,698 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,166 |
| Countries with Megacities | 0 | - | 4.99 | 248,712 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,030 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,484 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,399 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,435 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,569 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,395 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,513 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,009 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,003 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,236 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,085 |
| Countries by Capital City | 0 | - | 5.00 | 67,379 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,686 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,204 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,565 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,648 |
| Moved Capital Cities | 0 | - | 4.96 | 73,845 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,023 |
| Countries by Official Language | 0 | - | 4.95 | 193,882 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,364 |
| Countries in their Native Language | 0 | - | 4.99 | 197,528 |
| Independence from Whom | 0 | - | 4.99 | 210,444 |
| Subdivisions by Country | 0 | - | 4.86 | 50,179 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,253 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,717 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,063 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,611 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,939 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,404 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,187 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,508 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,516 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,351 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,798 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,109 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,563 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,661 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,629 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,833 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,183 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,415 |
| World Map Quiz | 0 | - | 4.81 | 63,990 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,157 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,661 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,464 |
