| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,809 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,954 |
| World's Longest Rivers | 0 | - | 4.87 | 121,064 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,743 |
| North Sea Countries | 0 | - | 4.92 | 86,605 |
| Black Sea Countries | 0 | - | 4.87 | 60,341 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,018 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,113 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,503 |
| Seas on the World Map | 0 | - | 4.96 | 133,822 |
| Seas of the World | 0 | - | 5.00 | 154,364 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,379 |
| Countries with Fjords | 0 | - | 4.93 | 100,203 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,280 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,182 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,928 |
| Countries With No Rivers | 0 | - | 4.96 | 76,030 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,248 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,189 |
| Biggest Lakes in the World | 0 | - | 4.62 | 89,001 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,110 |
| Famous Rivers | 0 | - | 4.74 | 104,527 |
| City to River #1 | 0 | - | 4.59 | 35,745 |
| Most Populous River Basins | 0 | - | 4.61 | 39,547 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,861 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,120 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,606 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,157 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,152 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,456 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,707 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,228 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,441 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,688 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,913 |
| Megadiverse Countries | 0 | - | 4.97 | 133,903 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,997 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,915 |
| Rivers by City | 0 | - | 4.38 | 31,635 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,784 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,922 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,337 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,759 |
| Geologic Time Scale | 0 | - | 4.46 | 9,920 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,192 |
| Biggest City by River | 0 | - | 4.41 | 52,697 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,735 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,318 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,979 |
| Boundary Waters | 0 | - | 4.92 | 88,045 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,818 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,290 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,844 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,921,461 |
| Landlocked Countries | 0 | - | 4.99 | 413,646 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,162 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,001 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,629 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,995 |
| World Capitals Quiz | 0 | - | 5.00 | 5,031,663 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,597 |
| Himalayan Countries | 0 | - | 4.95 | 135,357 |
| Andean Countries | 0 | - | 4.94 | 82,828 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,218 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,218 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,904 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,610 |
| Danube Countries | 0 | - | 4.97 | 71,080 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,768 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,539 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,487 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,403 |
| European Landlocked Countries | 0 | - | 4.99 | 145,754 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,215 |
| Countries with the Most Species | 0 | - | 4.99 | 95,241 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,346 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,370 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,958 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,576 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,953 |
| Countries in the Alps | 0 | - | 4.86 | 116,823 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,566 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,256 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,012 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,422 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,161 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,003 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,580 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,757 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,298 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,059 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,196 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,045 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,453 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,748 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,753 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,063 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,646 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,254 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,773 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,310 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,675 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,602 |
| Largest Countries By Category | 0 | - | 4.97 | 156,759 |
| Countries by Countries | 0 | - | 4.96 | 62,256 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,388 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,332 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,767 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,991 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,713 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,486 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,559 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,237 |
| Rivers on Borders | 0 | - | 4.02 | 22,638 |
| Rivers A-Z | 0 | - | 4.35 | 32,684 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,418 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,621 |
| Longest International Borders | 0 | - | 4.99 | 263,544 |
| Countries with Three Borders | 0 | - | 4.96 | 36,180 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,601 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,672 |
| Demonym of Every Country | 0 | - | 4.91 | 58,644 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,972 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,571,153 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,126 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,855 |
| Island Countries | 0 | - | 4.99 | 707,632 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,366 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,460 |
| Northernmost Countries | 0 | - | 4.99 | 357,736 |
| Countries of South America | 0 | - | 5.00 | 914,784 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,470 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,388 |
| "Land" Countries | 0 | - | 4.98 | 333,659 |
| Europe Map Quiz | 0 | - | 5.00 | 4,731,575 |
| All Country Flags of the World | 0 | - | 5.00 | 3,602,433 |
| Top World Languages | 0 | - | 4.92 | 813,178 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,163 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,511 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,109 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,650 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,226 |
| Countries with Megacities | 0 | - | 4.99 | 246,930 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,127 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,977 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,543 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,862 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,442 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,771 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,956 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,656 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,607 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,633 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,455 |
| Countries by Capital City | 0 | - | 5.00 | 66,662 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,337 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,908 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,422 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,412 |
| Moved Capital Cities | 0 | - | 4.96 | 73,590 |
| Countries by Official Language | 0 | - | 4.95 | 192,772 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,137 |
| Countries in their Native Language | 0 | - | 4.99 | 196,639 |
| Independence from Whom | 0 | - | 4.99 | 209,692 |
| Subdivisions by Country | 0 | - | 4.86 | 50,064 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,751 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,802 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,919 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,428 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,862 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,660 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,998 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,019 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,148 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,213 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,746 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,575 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,418 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,493 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,504 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,675 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,027 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,594 |
| World Map Quiz | 0 | - | 4.81 | 63,495 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,677 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,332 |
| Countries by Founding Story | 0 | - | 4.95 | 76,543 |
| Countries by Road Signs | 0 | - | 4.98 | 53,099 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,352 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,990 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,953 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,770 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,856 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,063 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,279 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,947 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,338 |
| Widest Countries East to West | 0 | - | 4.92 | 128,605 |
