| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,870 |
| North Sea Countries | 0 | - | 4.92 | 86,829 |
| Black Sea Countries | 0 | - | 4.87 | 60,468 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,169 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,278 |
| Seas on the World Map | 0 | - | 4.96 | 134,787 |
| Seas of the World | 0 | - | 5.00 | 155,574 |
| World's Longest Rivers | 0 | - | 4.88 | 121,856 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,905 |
| Countries With No Rivers | 0 | - | 4.96 | 76,247 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,064 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,906 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,197 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,911 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,054 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,445 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,161 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,588 |
| Countries with Fjords | 0 | - | 4.93 | 100,526 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,481 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,319 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,795 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,851 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,528 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,973 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,177 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,250 |
| Famous Rivers | 0 | - | 4.74 | 104,705 |
| City to River #1 | 0 | - | 4.59 | 35,789 |
| Most Populous River Basins | 0 | - | 4.55 | 39,605 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,222 |
| Biggest City by River | 0 | - | 4.41 | 52,757 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,423 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,597 |
| Megadiverse Countries | 0 | - | 4.96 | 134,571 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,126 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,963 |
| Rivers by City | 0 | - | 4.38 | 31,675 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,907 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,966 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,410 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,211 |
| Geologic Time Scale | 0 | - | 4.46 | 9,981 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,155 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,774 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,199 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,183 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,532 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,479 |
| The Only African Country ... | 0 | - | 4.99 | 128,733 |
| The Only American Country ... | 0 | - | 4.92 | 121,205 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,945 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,709 |
| Bordering Countries by Clue #1 | 0 | - | 4.97 | 82,887 |
| Bordering Countries by Clue #2 | 0 | - | 4.95 | 87,057 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 107,445 |
| Walking Across Borders with Hints #2 | 0 | - | 4.97 | 86,389 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,996 |
| Rivers on Borders | 0 | - | 4.02 | 22,663 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,595 |
| Countries by Wikipedia Descriptions #1 | 0 | - | 4.93 | 65,189 |
| Countries by Wikipedia Descriptions #4 | 0 | - | 4.87 | 56,812 |
| Boundary Waters | 0 | - | 4.92 | 88,254 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,987 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,684 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,189,953 |
| Landlocked Countries | 0 | - | 4.99 | 416,987 |
| Seas of Europe | 0 | - | 4.37 | 84,502 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,395 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,394 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,328 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,597 |
| World Capitals Quiz | 0 | - | 5.00 | 5,052,498 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,086 |
| Himalayan Countries | 0 | - | 4.95 | 136,645 |
| Andean Countries | 0 | - | 4.95 | 83,557 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,813 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,101 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,480 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,071 |
| Danube Countries | 0 | - | 4.97 | 71,464 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,274 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,875 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,222 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,213 |
| European Landlocked Countries | 0 | - | 4.99 | 146,164 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,825 |
| Countries with the Most Species | 0 | - | 4.99 | 102,191 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,953 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,347 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,526 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,185 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,835 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,214 |
| Countries in the Alps | 0 | - | 4.86 | 117,384 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,931 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,974 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,279 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,777 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,866 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,287 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,025 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,016 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,836 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,377 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,381 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,221 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,757 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,026 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,032 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,783 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,919 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,451 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,278 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,200 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,661 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,849 |
| Largest Countries By Category | 0 | - | 4.97 | 157,315 |
| Countries by Countries | 0 | - | 4.96 | 62,629 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,918 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,089 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,414 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,120 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,743,013 |
| Countries Ending in "IA" by Clue #1 | 0 | - | 4.74 | 70,336 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,127 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,662 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,971 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,331 |
| Rivers A-Z | 0 | - | 4.35 | 32,739 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,363 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,888 |
| Longest International Borders | 0 | - | 4.99 | 264,359 |
| Countries with Three Borders | 0 | - | 4.96 | 36,363 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,797 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,893 |
| Demonym of Every Country | 0 | - | 4.91 | 58,954 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,260 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,578,669 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,953 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,001 |
| Island Countries | 0 | - | 4.99 | 708,948 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,326 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,745 |
| Northernmost Countries | 0 | - | 4.99 | 359,538 |
| Countries of South America | 0 | - | 5.00 | 920,153 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,644 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,866 |
| "Land" Countries | 0 | - | 4.98 | 334,762 |
| The Only Asian Country ... | 0 | - | 4.69 | 122,162 |
| Europe Map Quiz | 0 | - | 5.00 | 4,747,529 |
| All Country Flags of the World | 0 | - | 5.00 | 3,633,057 |
| Top World Languages | 0 | - | 4.92 | 817,793 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,995 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,274 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,902 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,443 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,986 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,417 |
| Countries with Megacities | 0 | - | 4.99 | 249,221 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,272 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,619 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,584 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,591 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,441 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,523 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,651 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,075 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,102 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,379 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,241 |
| Countries by Capital City | 0 | - | 5.00 | 67,550 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,788 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,282 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,871 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,737 |
| Moved Capital Cities | 0 | - | 4.96 | 73,912 |
| Countries by Official Language | 0 | - | 4.95 | 194,087 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,886 |
| Countries in their Native Language | 0 | - | 4.99 | 197,708 |
| Independence from Whom | 0 | - | 4.99 | 210,893 |
| Subdivisions by Country | 0 | - | 4.86 | 50,214 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,406 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,908 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,089 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,648 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,956 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,473 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,256 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,654 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,576 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,390 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,813 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,369 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,598 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,698 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,665 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,875 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,227 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,666 |
