| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,844 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,960 |
| World's Longest Rivers | 0 | - | 4.87 | 121,075 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,744 |
| North Sea Countries | 0 | - | 4.92 | 86,611 |
| Black Sea Countries | 0 | - | 4.87 | 60,344 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,021 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,118 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,519 |
| Seas on the World Map | 0 | - | 4.96 | 133,840 |
| Seas of the World | 0 | - | 5.00 | 154,388 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,382 |
| Countries with Fjords | 0 | - | 4.93 | 100,216 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,282 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,190 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,938 |
| Countries With No Rivers | 0 | - | 4.96 | 76,037 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,255 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,215 |
| Biggest Lakes in the World | 0 | - | 4.62 | 89,002 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,113 |
| Famous Rivers | 0 | - | 4.74 | 104,530 |
| City to River #1 | 0 | - | 4.59 | 35,745 |
| Most Populous River Basins | 0 | - | 4.61 | 39,548 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,867 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,122 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,611 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,158 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,152 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,458 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,715 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,238 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,448 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,691 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,924 |
| Megadiverse Countries | 0 | - | 4.97 | 133,908 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,001 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,915 |
| Rivers by City | 0 | - | 4.38 | 31,636 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,787 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,923 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,338 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,762 |
| Geologic Time Scale | 0 | - | 4.46 | 9,920 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,204 |
| Biggest City by River | 0 | - | 4.41 | 52,698 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,736 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,320 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,979 |
| Boundary Waters | 0 | - | 4.92 | 88,051 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,822 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,303 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,852 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,928,521 |
| Landlocked Countries | 0 | - | 4.99 | 413,716 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,166 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,015 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,647 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,027 |
| World Capitals Quiz | 0 | - | 5.00 | 5,032,315 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,634 |
| Himalayan Countries | 0 | - | 4.95 | 135,402 |
| Andean Countries | 0 | - | 4.94 | 82,838 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,232 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,231 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,921 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,622 |
| Danube Countries | 0 | - | 4.97 | 71,091 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,774 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,547 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,506 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,419 |
| European Landlocked Countries | 0 | - | 4.99 | 145,763 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,225 |
| Countries with the Most Species | 0 | - | 4.99 | 95,246 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,364 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,201 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,371 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,962 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,581 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,954 |
| Countries in the Alps | 0 | - | 4.86 | 116,838 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,581 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,275 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,018 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,430 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,182 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,011 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,588 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,765 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,337 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,071 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,048 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,459 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,755 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,762 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,093 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,653 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,257 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,778 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,349 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,703 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,608 |
| Largest Countries By Category | 0 | - | 4.97 | 156,778 |
| Countries by Countries | 0 | - | 4.96 | 62,267 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,402 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,334 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,778 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,822 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,720 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,491 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,567 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,240 |
| Rivers on Borders | 0 | - | 4.02 | 22,638 |
| Rivers A-Z | 0 | - | 4.35 | 32,685 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,441 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,628 |
| Longest International Borders | 0 | - | 4.99 | 263,550 |
| Countries with Three Borders | 0 | - | 4.96 | 36,185 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,605 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,680 |
| Demonym of Every Country | 0 | - | 4.91 | 58,647 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,153 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,361 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,148 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,899 |
| Island Countries | 0 | - | 4.99 | 707,670 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,585 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,591 |
| Northernmost Countries | 0 | - | 4.99 | 357,779 |
| Countries of South America | 0 | - | 5.00 | 914,925 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,676 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,714 |
| "Land" Countries | 0 | - | 4.98 | 333,678 |
| Europe Map Quiz | 0 | - | 5.00 | 4,732,026 |
| All Country Flags of the World | 0 | - | 5.00 | 3,603,323 |
| Top World Languages | 0 | - | 4.92 | 813,291 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,165 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,528 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,276 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,699 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,309 |
| Countries with Megacities | 0 | - | 4.99 | 247,038 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,183 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,015 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,606 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,923 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,556 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,801 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,967 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,666 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,616 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,651 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,475 |
| Countries by Capital City | 0 | - | 5.00 | 66,682 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,351 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,914 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,468 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,426 |
| Moved Capital Cities | 0 | - | 4.96 | 73,597 |
| Countries by Official Language | 0 | - | 4.95 | 192,795 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,157 |
| Countries in their Native Language | 0 | - | 4.99 | 196,657 |
| Independence from Whom | 0 | - | 4.99 | 209,718 |
| Subdivisions by Country | 0 | - | 4.86 | 50,070 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,778 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,815 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,864 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,679 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,010 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,039 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,218 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,750 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,591 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,429 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,502 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,508 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,688 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,032 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,615 |
| World Map Quiz | 0 | - | 4.81 | 63,507 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,722 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,340 |
| Countries by Founding Story | 0 | - | 4.95 | 76,556 |
| Countries by Road Signs | 0 | - | 4.98 | 53,107 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,370 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,000 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,962 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,797 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,865 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,071 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,282 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,953 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,340 |
| Widest Countries East to West | 0 | - | 4.92 | 128,612 |
