| World's Longest Rivers | 0 | - | 4.90 | 136,889 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 164,080 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,596 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,042 |
| North Sea Countries | 0 | - | 4.92 | 87,440 |
| Black Sea Countries | 0 | - | 4.87 | 60,628 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,411 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,514 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,255 |
| Seas on the World Map | 0 | - | 4.96 | 135,446 |
| Seas of the World | 0 | - | 5.00 | 157,159 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,867 |
| Countries with Fjords | 0 | - | 4.94 | 100,972 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,717 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,523 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,856 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,679 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,432 |
| Famous Rivers | 0 | - | 4.75 | 105,009 |
| City to River #1 | 0 | - | 4.59 | 35,854 |
| Most Populous River Basins | 0 | - | 4.55 | 39,730 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,369 |
| Countries With No Rivers | 0 | - | 4.96 | 76,863 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,204 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,751 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,249 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,241 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,641 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,862 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,514 |
| Megadiverse Countries | 0 | - | 4.96 | 134,948 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,592 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,750 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,280 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,016 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,996 |
| Rivers by City | 0 | - | 4.38 | 31,729 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,077 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,026 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,517 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,532 |
| Geologic Time Scale | 0 | - | 4.41 | 10,025 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,108 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,813 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,964 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,237 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,573 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,023 |
| Boundary Waters | 0 | - | 4.92 | 88,513 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,208 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,182 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,573 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,527 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,520,366 |
| Biggest City by River | 0 | - | 4.38 | 52,871 |
| Landlocked Countries | 0 | - | 4.99 | 421,210 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,664 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,924 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,291 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,292 |
| World Capitals Quiz | 0 | - | 5.00 | 5,078,637 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,066 |
| Himalayan Countries | 0 | - | 4.95 | 138,376 |
| Andean Countries | 0 | - | 4.93 | 84,408 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,631 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,552 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,253 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,656 |
| Danube Countries | 0 | - | 4.97 | 71,919 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,897 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,323 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,136 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,595 |
| European Landlocked Countries | 0 | - | 4.99 | 147,051 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,489 |
| Countries with the Most Species | 0 | - | 4.99 | 103,160 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,644 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,542 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,684 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,483 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,164 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,578 |
| Countries in the Alps | 0 | - | 4.87 | 118,072 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,521 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,880 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,594 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,517 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,408 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,885 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,566 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,423 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,125 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,773 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,602 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,465 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,141 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,401 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,440 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,710 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,235 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 60,335 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,924 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,548 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,872 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,162 |
| Largest Countries By Category | 0 | - | 4.97 | 158,062 |
| Countries by Countries | 0 | - | 4.96 | 63,103 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,578 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,249 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,538 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,341 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,904 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,591 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,772,973 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,648 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,825 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,435 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,467 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,793 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,239 |
| Longest International Borders | 0 | - | 4.99 | 265,059 |
| Countries with Three Borders | 0 | - | 4.96 | 36,569 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,076 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,171 |
| Demonym of Every Country | 0 | - | 4.92 | 60,446 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,913 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,588,466 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,295 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,727 |
| Island Countries | 0 | - | 4.99 | 710,744 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,844 |
| Northernmost Countries | 0 | - | 4.99 | 361,601 |
| Countries of South America | 0 | - | 5.00 | 926,167 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,401 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,874,631 |
| "Land" Countries | 0 | - | 4.98 | 337,083 |
| Top World Languages | 0 | - | 4.92 | 823,196 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,655 |
| Europe Map Quiz | 0 | - | 5.00 | 4,766,656 |
| All Country Flags of the World | 0 | - | 5.00 | 3,671,811 |
| Rivers on Borders | 0 | - | 4.02 | 22,701 |
| Rivers A-Z | 0 | - | 4.35 | 32,789 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,427 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,323 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,461 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,804 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,468 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,906 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,654 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,685 |
| Countries with Megacities | 0 | - | 4.99 | 264,034 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,527 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,363 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,797 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,420 |
| Biggest Cities in the World | 0 | - | 4.91 | 799,838 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,303 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,395 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,480 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,589 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,345 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,150 |
| Countries by Capital City | 0 | - | 5.00 | 68,451 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,255 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,734 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,741 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,306 |
| Moved Capital Cities | 0 | - | 4.96 | 74,270 |
| Countries by Official Language | 0 | - | 4.95 | 195,088 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,157 |
| Countries in their Native Language | 0 | - | 4.99 | 198,773 |
| Independence from Whom | 0 | - | 4.99 | 211,905 |
| Subdivisions by Country | 0 | - | 4.86 | 50,392 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,591 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,943 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,306 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,880 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,080 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,012 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,551 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,349 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,983 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,603 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,054 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,524 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,835 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,146 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,919 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,303 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,453 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,951 |
| World Map Quiz | 0 | - | 4.81 | 64,984 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,846 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,271 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,034 |
| Countries by Founding Story | 0 | - | 4.95 | 77,297 |
| Countries by Road Signs | 0 | - | 4.98 | 53,929 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,939 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,187 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,911 |
