| Tectonic Plates Map Quiz | 0 | - | 4.98 | 57,587 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,533 |
| Countries with Fjords | 0 | - | 4.92 | 79,414 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 47,175 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 31,460 |
| World's Longest Rivers | 0 | - | 4.88 | 110,885 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 141,944 |
| Megadiverse Countries | 0 | - | 4.96 | 126,808 |
| Countries That Touch the Baltic Sea | 0 | - | 4.99 | 112,661 |
| North Sea Countries | 0 | - | 4.92 | 81,150 |
| Black Sea Countries | 0 | - | 4.87 | 57,690 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 61,767 |
| Caspian Sea Countries | 0 | - | 4.92 | 59,404 |
| Countries With No Rivers | 0 | - | 4.96 | 70,081 |
| Countries with the Shortest Coastlines | 0 | - | 4.81 | 54,817 |
| Name a Valid Country for Each River | 0 | - | 4.97 | 52,721 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 393,143 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 78,999 |
| Rivers of Europe Quiz | 0 | - | 4.90 | 49,108 |
| Seas on the World Map | 0 | - | 4.97 | 123,365 |
| Seas of the World | 0 | - | 5.00 | 131,495 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 35,144 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.98 | 106,596 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 69,055 |
| Geologic Time Scale | 0 | - | 4.46 | 9,111 |
| Largest Lakes in the United States on a Map | 0 | - | 4.89 | 22,042 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 74,028 |
| Countries Bordering the Four Color Seas | 0 | - | 4.93 | 19,251 |
| Seas that Touch the Most Countries | 0 | - | 4.72 | 90,839 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,006 |
| Atlantic Ocean General Knowledge | 0 | - | 4.72 | 20,126 |
| Indian Ocean General Knowledge | 0 | - | 4.51 | 21,279 |
| Bodies of Water by Cities | 0 | - | 4.79 | 26,966 |
| Biggest Lakes in the World | 0 | - | 4.66 | 84,180 |
| Great Lakes Quiz | 0 | - | 4.76 | 46,830 |
| Famous Rivers | 0 | - | 4.75 | 99,477 |
| Most Populous River Basins | 0 | - | 4.57 | 37,861 |
| Rivers that Flow through the Most Countries | 0 | - | 4.52 | 37,824 |
| Boundary Waters | 0 | - | 4.93 | 82,025 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,412 |
| Landforms by Description Quiz | 0 | - | 4.38 | 25,591 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,789 |
| Biggest City by River | 0 | - | 4.42 | 51,163 |
| Cities on a Map of the Great Lakes | 0 | - | 4.42 | 41,586 |
| Gulfs and Bays on the World Map | 0 | - | 4.58 | 27,382 |
| Famous Lakes Quiz | 0 | - | 4.49 | 22,997 |
| City to River #1 | 0 | - | 4.53 | 24,805 |
| City to River #2 - Difficult | 0 | - | 4.51 | 14,245 |
| Largest Rivers by Discharge | 0 | - | 4.51 | 14,952 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,769,164 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,452 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,283 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 85,651 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,843 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,568 |
| World Capitals Quiz | 0 | - | 5.00 | 4,576,700 |
| Members of the Arab League | 0 | - | 4.86 | 66,327 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,518 |
| Himalayan Countries | 0 | - | 4.94 | 108,466 |
| Andean Countries | 0 | - | 4.91 | 60,230 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,406 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,865 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,487 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,860 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,276 |
| Danube Countries | 0 | - | 4.96 | 57,238 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,253 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,310 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,739 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,426 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,060 |
| European Landlocked Countries | 0 | - | 4.99 | 137,077 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,828 |
| Countries with the Most Species | 0 | - | 4.99 | 89,862 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,367 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,030 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,324 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,078 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,891 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,140 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,939 |
| Countries in the Alps | 0 | - | 4.84 | 103,892 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,456 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,574 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,299 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,394 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,916 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,363 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,574 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,785 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,705 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,432 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,194 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,039 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,035 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,593 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,686 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,262 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,605 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,971 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,062 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,667 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,452 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,848 |
| Largest Countries By Category | 0 | - | 4.97 | 146,469 |
| Countries by Countries | 0 | - | 4.95 | 55,627 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,172,598 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,574 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,214 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,144 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,643 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,229,346 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,295 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,726 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,567 |
| Who Controls It? #1 | 0 | - | 4.83 | 45,884 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,341 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,903 |
| Longest International Borders | 0 | - | 4.99 | 236,686 |
| Countries with Three Borders | 0 | - | 4.96 | 32,143 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,881 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,399 |
| Demonym of Every Country | 0 | - | 4.91 | 50,833 |
| Rivers by City Quiz | 0 | - | 4.35 | 21,828 |
| The Same Prefixes - Geography | 0 | - | 4.51 | 43,053 |
| "Second Best" Geography Edition #1 | 0 | - | 4.66 | 59,219 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,408,538 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 345,125 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,711 |
| Island Countries Quiz | 0 | - | 4.99 | 668,726 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,643 |
| Northernmost Countries | 0 | - | 4.99 | 330,944 |
| Countries of South America | 0 | - | 5.00 | 810,079 |
| Countries of Oceania | 0 | - | 5.00 | 913,818 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,611,601 |
| Top World Languages | 0 | - | 4.92 | 723,450 |
| Analogies of Countries #1 | 0 | - | 4.87 | 63,466 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,808 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 78,895 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,056 |
| Countries with Megacities | 0 | - | 4.99 | 201,867 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,398 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,972 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,262 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,888 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,067 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,921 |
| Northernmost Capital Cities | 0 | - | 4.98 | 96,027 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,912 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,626 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,275 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,228 |
| Countries by Capital City | 0 | - | 4.99 | 51,489 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,200 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,192 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,411 |
| Moved Capital Cities | 0 | - | 4.96 | 67,964 |
| Countries by Official Language | 0 | - | 4.96 | 175,254 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,275 |
| Countries in their Native Language | 0 | - | 4.98 | 180,601 |
| Independence from Whom | 0 | - | 4.99 | 189,387 |
| Subdivisions by Country | 0 | - | 4.84 | 46,897 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,647 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,934 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,591 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,822 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,349 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,896 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,652 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,045 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,723 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,859 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,083 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,271 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,947 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,482 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,404 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,032 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,525 |
| World Map Quiz | 0 | - | 4.90 | 51,448 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,510 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,734 |
| Countries by Founding Story | 0 | - | 4.93 | 55,914 |
| Countries by Road Signs | 0 | - | 4.98 | 46,297 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,768 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,834 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,973 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,753 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,698 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,066 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,293 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,093 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,579 |
| Widest Countries East to West | 0 | - | 4.93 | 120,549 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,119 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,545 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,830 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,416 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,853 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,661 |
