| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 141,731 |
| Countries with the Shortest Coastlines | 0 | - | 4.81 | 54,807 |
| World's Longest Rivers | 0 | - | 4.88 | 110,823 |
| Countries That Touch the Baltic Sea | 0 | - | 4.99 | 112,645 |
| North Sea Countries | 0 | - | 4.92 | 81,116 |
| Black Sea Countries | 0 | - | 4.87 | 57,677 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 61,743 |
| Caspian Sea Countries | 0 | - | 4.92 | 59,380 |
| Tectonic Plates Map Quiz | 0 | - | 4.98 | 57,534 |
| Seas on the World Map | 0 | - | 4.97 | 123,288 |
| Seas of the World | 0 | - | 5.00 | 131,294 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,511 |
| Countries with Fjords | 0 | - | 4.92 | 79,366 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 47,150 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 31,422 |
| Seas that Touch the Most Countries | 0 | - | 4.72 | 90,783 |
| Countries With No Rivers | 0 | - | 4.96 | 70,047 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 392,994 |
| Biggest Lakes in the World | 0 | - | 4.66 | 84,134 |
| Great Lakes Quiz | 0 | - | 4.76 | 46,795 |
| Famous Rivers | 0 | - | 4.75 | 99,446 |
| Most Populous River Basins | 0 | - | 4.57 | 37,844 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 78,942 |
| Rivers that Flow through the Most Countries | 0 | - | 4.52 | 37,807 |
| Rivers of Europe Quiz | 0 | - | 4.90 | 49,063 |
| Atlantic Ocean General Knowledge | 0 | - | 4.72 | 20,118 |
| Indian Ocean General Knowledge | 0 | - | 4.51 | 21,267 |
| Bodies of Water by Cities | 0 | - | 4.79 | 26,946 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.98 | 106,535 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 69,006 |
| Largest Lakes in the United States on a Map | 0 | - | 4.89 | 22,026 |
| American Countries With No Atlantic Coastline | 0 | - | 4.90 | 73,985 |
| Megadiverse Countries | 0 | - | 4.96 | 126,767 |
| Gulfs and Bays on the World Map | 0 | - | 4.58 | 27,370 |
| Famous Lakes Quiz | 0 | - | 4.49 | 22,989 |
| City to River #1 | 0 | - | 4.53 | 24,798 |
| City to River #2 - Difficult | 0 | - | 4.51 | 14,234 |
| Largest Rivers by Discharge | 0 | - | 4.51 | 14,942 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 35,137 |
| Countries Bordering the Four Color Seas | 0 | - | 4.93 | 19,219 |
| Landforms Quiz | 0 | - | 4.34 | 74,837 |
| Geologic Time Scale | 0 | - | 4.46 | 9,107 |
| Biggest City by River | 0 | - | 4.42 | 51,154 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 69,998 |
| Cities on a Map of the Great Lakes | 0 | - | 4.42 | 41,560 |
| Rivers by City Quiz | 0 | - | 4.35 | 21,827 |
| Landforms by Description Quiz | 0 | - | 4.38 | 25,587 |
| Boundary Waters | 0 | - | 4.93 | 81,992 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,328 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,729,722 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 333,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,766 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,238 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 85,579 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,542 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,489 |
| World Capitals Quiz | 0 | - | 5.00 | 4,572,217 |
| Members of the Arab League | 0 | - | 4.86 | 66,174 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,386 |
| Himalayan Countries | 0 | - | 4.94 | 108,325 |
| Andean Countries | 0 | - | 4.91 | 60,130 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,318 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,808 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,407 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,826 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,225 |
| Danube Countries | 0 | - | 4.96 | 57,208 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,220 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,286 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,672 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,369 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,979 |
| European Landlocked Countries | 0 | - | 4.99 | 137,019 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,783 |
| Countries with the Most Species | 0 | - | 4.99 | 89,851 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,323 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,009 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,311 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,039 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,872 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,112 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,896 |
| Countries in the Alps | 0 | - | 4.84 | 103,825 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,412 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,451 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,267 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,352 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,880 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,330 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,521 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,762 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,683 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,396 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,157 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,016 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,020 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,553 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,646 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,222 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,487 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,944 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,014 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,314 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,307 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,817 |
| Largest Countries By Category | 0 | - | 4.97 | 146,387 |
| Countries by Countries | 0 | - | 4.95 | 55,573 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,167,274 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,512 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,193 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,120 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,584 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,225,924 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,229 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,708 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,524 |
| Who Controls It? #1 | 0 | - | 4.83 | 45,864 |
| Rivers on Borders | 0 | - | 4.06 | 21,992 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,064 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,825 |
| Longest International Borders | 0 | - | 4.99 | 236,569 |
| Countries with Three Borders | 0 | - | 4.96 | 32,104 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,824 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,337 |
| Demonym of Every Country | 0 | - | 4.91 | 50,775 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,407,203 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 344,874 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,368 |
| Island Countries Quiz | 0 | - | 4.99 | 668,349 |
| Biggest Countries by Area | 0 | - | 5.00 | 946,896 |
| Northernmost Countries | 0 | - | 4.99 | 330,805 |
| Countries of South America | 0 | - | 5.00 | 809,361 |
| Countries of Oceania | 0 | - | 5.00 | 912,825 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,609,731 |
| Europe Map Quiz | 0 | - | 5.00 | 4,350,396 |
| Top World Languages | 0 | - | 4.92 | 722,686 |
| Analogies of Countries #1 | 0 | - | 4.88 | 63,421 |
| Five Letter Geography #4 | 0 | - | 4.83 | 67,746 |
| Name a Valid Answer - Geography | 0 | - | 4.92 | 78,822 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,328,068 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,198 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,922 |
| Countries with Megacities | 0 | - | 4.99 | 201,684 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,208 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,877 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 98,131 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,791 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,788 |
| Biggest Cities in the World | 0 | - | 4.90 | 701,904 |
| Global Cities on a World Map | 0 | - | 4.92 | 92,864 |
| Northernmost Capital Cities | 0 | - | 4.98 | 95,954 |
| Most Remote Capital Cities | 0 | - | 4.90 | 44,860 |
| Capital Cities: Ports and Saints | 0 | - | 4.94 | 35,571 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 93,184 |
| Same Letter Country and Capital | 0 | - | 4.99 | 130,114 |
| Countries by Capital City | 0 | - | 4.99 | 51,392 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 67,135 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 106,147 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 74,329 |
| Moved Capital Cities | 0 | - | 4.96 | 67,922 |
| Countries by Official Language | 0 | - | 4.96 | 175,139 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,063 |
| Countries in their Native Language | 0 | - | 4.98 | 180,466 |
| Independence from Whom | 0 | - | 4.99 | 189,247 |
| Subdivisions by Country | 0 | - | 4.84 | 46,876 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,546 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,809 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,549 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,791 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,268 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,867 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,572 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,007 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,688 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,839 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,014 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,232 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,910 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,431 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,374 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,995 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,114,763 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,258 |
| World Map Quiz | 0 | - | 4.90 | 51,310 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,244 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,670 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,621 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,555 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,873 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,580 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,649 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,008 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,192 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,038 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,519 |
| Widest Countries East to West | 0 | - | 4.93 | 120,484 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,107 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,460 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,795 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,383 |
