| Countries With No Rivers | 0 | - | 4.96 | 75,987 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,174 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,354 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,775 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,550 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,630 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,187 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,839 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,336 |
| Countries with Fjords | 0 | - | 4.93 | 100,155 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,245 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,151 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,656 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,296 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,726 |
| World's Longest Rivers | 0 | - | 4.87 | 120,969 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,595 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,124 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,725 |
| North Sea Countries | 0 | - | 4.92 | 86,568 |
| Black Sea Countries | 0 | - | 4.87 | 60,305 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,984 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,078 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,927 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,024 |
| Seas on the World Map | 0 | - | 4.96 | 133,715 |
| Seas of the World | 0 | - | 5.00 | 154,078 |
| Biggest City by River | 0 | - | 4.41 | 52,683 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,403 |
| African Great Lakes | 0 | - | 4.82 | 65,046 |
| Megadiverse Countries | 0 | - | 4.97 | 133,837 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,323 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,589 |
| Geologic Time Scale | 0 | - | 4.46 | 9,906 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,895 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,953 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,072 |
| Famous Rivers | 0 | - | 4.74 | 104,468 |
| City to River #1 | 0 | - | 4.59 | 35,739 |
| Most Populous River Basins | 0 | - | 4.61 | 39,529 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,088 |
| Largest City by Island | 0 | - | 4.87 | 70,953 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,725 |
| African Island Countries | 0 | - | 4.96 | 100,670 |
| Islands by Country #1 | 0 | - | 4.87 | 174,401 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,143 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,139 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,441 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,259 |
| Richest Island Countries | 0 | - | 4.84 | 99,400 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,977 |
| Rivers on Borders | 0 | - | 4.02 | 22,632 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,967 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,903 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,744 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,915 |
| Boundary Waters | 0 | - | 4.92 | 87,994 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,186 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,858,536 |
| Landlocked Countries | 0 | - | 4.99 | 412,943 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,754 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,780 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,043 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,105 |
| Rivers by City | 0 | - | 4.38 | 31,622 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,114 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,912 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,483 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,847 |
| World Capitals Quiz | 0 | - | 5.00 | 5,026,189 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,277 |
| Himalayan Countries | 0 | - | 4.95 | 135,082 |
| Andean Countries | 0 | - | 4.94 | 82,680 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,095 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,012 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,778 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,488 |
| Danube Countries | 0 | - | 4.97 | 71,011 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,654 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,466 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,307 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,226 |
| European Landlocked Countries | 0 | - | 4.99 | 145,678 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,068 |
| Countries with the Most Species | 0 | - | 4.99 | 95,196 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,216 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,178 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,335 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,913 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,521 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,878 |
| Countries in the Alps | 0 | - | 4.87 | 116,701 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,486 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,101 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,949 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,335 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,072 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,940 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,480 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,693 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,146 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,977 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,168 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,001 |
| Asian Island Nations | 0 | - | 4.63 | 93,704 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,373 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,683 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,682 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,896 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,575 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,207 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,686 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,881 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,403 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,547 |
| Largest Countries By Category | 0 | - | 4.97 | 156,636 |
| Countries by Countries | 0 | - | 4.96 | 62,180 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,241 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,936 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,307 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,667 |
| Islands by Country #2 | 0 | - | 4.80 | 76,941 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,710,484 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,652 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,641 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,460 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,686 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,029 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,489 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,214 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,422 |
| Rivers A-Z | 0 | - | 4.35 | 32,669 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,172 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,554 |
| Longest International Borders | 0 | - | 4.99 | 263,386 |
| Countries with Three Borders | 0 | - | 4.96 | 36,135 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,565 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,611 |
| East Asian Islands on the Map | 0 | - | 4.54 | 32,900 |
| Demonym of Every Country | 0 | - | 4.91 | 58,573 |
| Islands A-Z | 0 | - | 4.46 | 116,651 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,122 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,174 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,860 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,032 |
| Island Countries | 0 | - | 4.99 | 707,274 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,292 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,468 |
| Northernmost Countries | 0 | - | 4.99 | 357,301 |
| Countries of South America | 0 | - | 5.00 | 913,538 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,803 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,472 |
| "Land" Countries | 0 | - | 4.98 | 333,443 |
| Europe Map Quiz | 0 | - | 5.00 | 4,727,731 |
| All Country Flags of the World | 0 | - | 5.00 | 3,594,964 |
| Top World Languages | 0 | - | 4.92 | 812,078 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,876 |
| Asian Islands | 0 | - | 4.49 | 20,762 |
| Largest Islands of Greece | 0 | - | 4.59 | 47,390 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,126 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,389 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,654 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,160 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,886 |
| Countries with Megacities | 0 | - | 4.99 | 246,247 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,806 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,746 |
| Most Populous Islands of Europe | 0 | - | 4.56 | 25,702 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,267 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,682 |
| Biggest Cities in the World | 0 | - | 4.92 | 789,330 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,593 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,821 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,573 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,523 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,487 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,244 |
| Countries by Capital City | 0 | - | 5.00 | 66,473 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,230 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,815 |
| World Capitals by Proximity | 0 | - | 4.91 | 327,991 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,348 |
| Capital Cities Nearest to Islands | 0 | - | 4.55 | 13,241 |
| Moved Capital Cities | 0 | - | 4.96 | 73,518 |
| Capitals by River | 0 | - | 4.55 | 48,221 |
| Countries by Official Language | 0 | - | 4.95 | 192,603 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,903 |
| Countries in their Native Language | 0 | - | 4.99 | 196,489 |
| Independence from Whom | 0 | - | 4.99 | 209,496 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,596 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,660 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,879 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,377 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,838 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,555 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,942 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,603 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,068 |
