| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,226 |
| North Sea Countries | 0 | - | 4.92 | 87,787 |
| Black Sea Countries | 0 | - | 4.87 | 60,803 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,661 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,753 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,425 |
| Seas on the World Map | 0 | - | 4.96 | 136,115 |
| Seas of the World | 0 | - | 5.00 | 158,857 |
| World's Longest Rivers | 0 | - | 4.89 | 137,783 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 165,878 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,408 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 82,247 |
| Seas that Touch the Most Countries | 0 | - | 4.64 | 97,174 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,103 |
| American Countries With No Atlantic Coastline | 0 | - | 4.93 | 92,895 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,243 |
| Countries with Fjords | 0 | - | 4.94 | 101,594 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,948 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,754 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,464 |
| Countries With No Rivers | 0 | - | 4.96 | 77,255 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 63,144 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,985 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,707 |
| Famous Rivers | 0 | - | 4.75 | 105,317 |
| City to River #1 | 0 | - | 4.59 | 35,920 |
| Most Populous River Basins | 0 | - | 4.55 | 39,837 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,454 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,517 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 57,000 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,325 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,297 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,741 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,070 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,927 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,196 |
| Megadiverse Countries | 0 | - | 4.96 | 149,072 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,441 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,086 |
| Rivers by City | 0 | - | 4.38 | 31,784 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,271 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,101 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,695 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,317 |
| Geologic Time Scale | 0 | - | 4.41 | 10,083 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,859 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,770 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,037 |
| Biggest City by River | 0 | - | 4.38 | 52,983 |
| Boundary Waters | 0 | - | 4.92 | 88,836 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,467 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,839 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,565 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,061 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,970,109 |
| Landlocked Countries | 0 | - | 4.99 | 427,255 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,993 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,516 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,170 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,191 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,828 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,922 |
| Himalayan Countries | 0 | - | 4.93 | 140,834 |
| Andean Countries | 0 | - | 4.94 | 85,804 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,920 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,494 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,469 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,692 |
| Danube Countries | 0 | - | 4.97 | 72,560 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,803 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,972 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,446 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,920 |
| European Landlocked Countries | 0 | - | 4.99 | 147,741 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,540 |
| Countries with the Most Species | 0 | - | 4.99 | 103,648 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,640 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,814 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,953 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,926 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,680 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,131 |
| Countries in the Alps | 0 | - | 4.87 | 118,975 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,996 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,136 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,054 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,172 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,128 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,392 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,599 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,992 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,515 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,315 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,954 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,831 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,676 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,925 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,022 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,150 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,735 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,463 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,843 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,309 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,496 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,617 |
| Largest Countries By Category | 0 | - | 4.97 | 159,098 |
| Countries by Countries | 0 | - | 4.97 | 63,808 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,447 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,450 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,705 |
| All Countries by Population With a Map | 0 | - | 4.98 | 111,439 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,552 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,231 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,526 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,580 |
| Western Europe Map Quiz | 0 | - | 4.86 | 94,026 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,887 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,656 |
| Rivers on Borders | 0 | - | 4.02 | 22,754 |
| Rivers A-Z | 0 | - | 4.35 | 32,875 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,411 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,657 |
| Longest International Borders | 0 | - | 4.99 | 266,000 |
| Countries with Three Borders | 0 | - | 4.96 | 36,830 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,426 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,570 |
| Demonym of Every Country | 0 | - | 4.90 | 61,637 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,627 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,277 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,042 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,368 |
| Island Countries | 0 | - | 4.99 | 713,013 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,068 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,172 |
| Northernmost Countries | 0 | - | 4.99 | 364,600 |
| Countries of South America | 0 | - | 5.00 | 934,307 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,543 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,056 |
| "Land" Countries | 0 | - | 4.98 | 338,995 |
| Europe Map Quiz | 0 | - | 5.00 | 4,793,077 |
| All Country Flags of the World | 0 | - | 5.00 | 3,724,689 |
| Top World Languages | 0 | - | 4.92 | 831,284 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,777 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 105,139 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,456,050 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,987 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,502 |
| Countries with Megacities | 0 | - | 4.99 | 267,858 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,157 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,337 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,479 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,440 |
| Biggest Cities in the World | 0 | - | 4.91 | 806,981 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,508 |
| Northernmost Capital Cities | 0 | - | 4.98 | 111,556 |
| Most Remote Capital Cities | 0 | - | 4.92 | 54,085 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 46,349 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 110,441 |
| Same Letter Country and Capital | 0 | - | 4.99 | 158,377 |
| Countries by Capital City | 0 | - | 5.00 | 69,626 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 78,145 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,359 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,426 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,963 |
| Moved Capital Cities | 0 | - | 4.96 | 74,735 |
| Countries by Official Language | 0 | - | 4.95 | 196,223 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,947 |
| Countries in their Native Language | 0 | - | 4.99 | 199,964 |
| Independence from Whom | 0 | - | 4.99 | 213,411 |
| Subdivisions by Country | 0 | - | 4.87 | 50,667 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,668 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,137 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,577 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,809 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,259 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,473 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,925 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,282 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,626 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,167 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,288 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,773 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,488 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,509 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,218 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,641 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,977 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,737 |
| World Map Quiz | 0 | - | 4.81 | 65,927 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,893 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,817 |
| Countries by Founding Story | 0 | - | 4.95 | 77,909 |
| Countries by Road Signs | 0 | - | 4.98 | 54,451 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,517 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,235 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,708 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,934 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,554 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,664 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,849 |
