| World's Longest Rivers | 0 | - | 4.86 | 117,102 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 154,696 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 76,573 |
| Countries That Touch the Baltic Sea | 0 | - | 4.99 | 114,616 |
| North Sea Countries | 0 | - | 4.92 | 84,745 |
| Black Sea Countries | 0 | - | 4.87 | 59,405 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 63,868 |
| Caspian Sea Countries | 0 | - | 4.90 | 61,765 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 65,960 |
| Seas on the World Map | 0 | - | 4.97 | 129,901 |
| Seas of the World | 0 | - | 5.00 | 146,475 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 81,660 |
| Countries with Fjords | 0 | - | 4.92 | 83,876 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 33,912 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 49,049 |
| Seas that Touch the Most Countries | 0 | - | 4.70 | 94,462 |
| Biggest Lakes in the World | 0 | - | 4.62 | 87,547 |
| Great Lakes Quiz | 0 | - | 4.78 | 48,915 |
| Famous Rivers | 0 | - | 4.75 | 102,589 |
| City to River #1 | 0 | - | 4.58 | 34,330 |
| Most Populous River Basins | 0 | - | 4.54 | 38,975 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 39,325 |
| Countries With No Rivers | 0 | - | 4.96 | 74,068 |
| Name a Valid Country for Each River | 0 | - | 4.95 | 58,165 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 404,917 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 20,792 |
| Indian Ocean General Knowledge | 0 | - | 4.51 | 21,823 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 83,925 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 53,267 |
| Megadiverse Countries | 0 | - | 4.97 | 131,306 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 111,967 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 72,495 |
| Gulfs and Bays on the World Map | 0 | - | 4.59 | 28,994 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,608 |
| Largest Lakes in the United States on a Map | 0 | - | 4.89 | 23,742 |
| City to River #2 - Difficult | 0 | - | 4.62 | 19,317 |
| Largest Rivers by Discharge | 0 | - | 4.52 | 15,558 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 90,014 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 36,575 |
| Landforms Quiz | 0 | - | 4.37 | 76,134 |
| Geologic Time Scale | 0 | - | 4.47 | 9,582 |
| Countries Bordering the Four Color Seas | 0 | - | 4.93 | 21,640 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,472 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.86 | 25,344 |
| Rivers by City Quiz | 0 | - | 4.36 | 22,178 |
| Biggest City by River | 0 | - | 4.41 | 52,163 |
| Cities on a Map of the Great Lakes | 0 | - | 4.42 | 43,381 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,846 |
| Boundary Waters | 0 | - | 4.91 | 86,368 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 33,590 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 92,418 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 57,090 |
| "Second Best" Geography Edition #2 | 0 | - | 4.86 | 57,704 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,938,243 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 390,735 |
| World Geography on a Map #1 | 0 | - | 4.94 | 71,509 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 91,829 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 160,556 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 118,919 |
| World Capitals Quiz | 0 | - | 5.00 | 4,862,539 |
| Sahara Desert Countries | 0 | - | 4.97 | 149,577 |
| Himalayan Countries | 0 | - | 4.94 | 125,698 |
| Andean Countries | 0 | - | 4.93 | 70,762 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 58,268 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 115,819 |
| Coffee Producing Countries | 0 | - | 4.83 | 61,626 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 60,721 |
| Danube Countries | 0 | - | 4.97 | 61,789 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 98,163 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 82,798 |
| Countries with the Worst Passports | 0 | - | 4.92 | 75,606 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 141,239 |
| European Landlocked Countries | 0 | - | 4.99 | 142,181 |
| Partially Recognized Countries | 0 | - | 4.98 | 100,020 |
| Countries with the Most Species | 0 | - | 4.99 | 93,215 |
| Countries 197 to 205 | 0 | - | 4.88 | 64,944 |
| Tropic of Cancer Countries | 0 | - | 4.95 | 47,123 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,200 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,091 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 70,612 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 54,537 |
| Countries in the Alps | 0 | - | 4.86 | 112,117 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 91,681 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 99,647 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,102 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 89,086 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 111,810 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 92,699 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,239 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 50,558 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 48,531 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 59,586 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 51,765 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,571 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 100,888 |
| Arctic Ocean Countries | 0 | - | 4.94 | 76,545 |
| Countries with the Most Grassland | 0 | - | 4.93 | 74,387 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 111,134 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 65,517 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,423 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 40,714 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 226,695 |
| World Countries - Blind Typing | 0 | - | 5.00 | 97,810 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 45,760 |
| Largest Countries By Category | 0 | - | 4.97 | 152,619 |
| Countries by Countries | 0 | - | 4.96 | 59,286 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,454,345 |
| Country Flags with the Most White | 0 | - | 4.85 | 133,366 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,978 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,564 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 94,008 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 84,913 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,530,402 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 141,661 |
| Western Europe Map Quiz | 0 | - | 4.87 | 92,017 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 79,240 |
| Who Controls It? #1 | 0 | - | 4.83 | 47,455 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 199,393 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 115,575 |
| Longest International Borders | 0 | - | 4.99 | 244,910 |
| Countries with Three Borders | 0 | - | 4.96 | 34,701 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 39,808 |
| Largest Cities for each Latitude Degree | 0 | - | 5.00 | 45,540 |
| Demonym of Every Country | 0 | - | 4.91 | 55,866 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,509,349 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 363,173 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 386,961 |
| Island Countries Quiz | 0 | - | 4.99 | 695,646 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,006,895 |
| Northernmost Countries | 0 | - | 4.99 | 345,182 |
| Countries of South America | 0 | - | 5.00 | 875,429 |
| Countries of Oceania | 0 | - | 5.00 | 991,343 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,758,083 |
| Top World Languages | 0 | - | 4.92 | 779,343 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,287,589 |
| Europe Map Quiz | 0 | - | 5.00 | 4,602,137 |
| All Country Flags of the World | 0 | - | 5.00 | 3,383,762 |
| Rivers on Borders | 0 | - | 4.06 | 22,409 |
| Rivers A-Z | 0 | - | 4.35 | 32,313 |
| Analogies of Countries #1 | 0 | - | 4.88 | 66,894 |
| Pacific Ocean General Knowledge | 0 | - | 4.64 | 35,838 |
| Name a Valid Answer - Geography | 0 | - | 4.94 | 100,291 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 45,996 |
| "Second Best" Geography Edition #1 | 0 | - | 4.56 | 61,920 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,393,924 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 367,420 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 162,773 |
| Countries with Megacities | 0 | - | 4.99 | 222,376 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 189,629 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 107,710 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 128,944 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 75,118 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 302,346 |
| Biggest Cities in the World | 0 | - | 4.91 | 758,366 |
| Global Cities on a World Map | 0 | - | 4.94 | 105,366 |
| Northernmost Capital Cities | 0 | - | 4.98 | 103,771 |
| Most Remote Capital Cities | 0 | - | 4.91 | 49,565 |
| Capital Cities: Ports and Saints | 0 | - | 4.95 | 41,005 |
| Capitals with the Shortest Names | 0 | - | 4.96 | 102,057 |
| Same Letter Country and Capital | 0 | - | 4.99 | 140,222 |
| Countries by Capital City | 0 | - | 5.00 | 60,723 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 72,875 |
| Capitals of the Largest Countries by Area | 0 | - | 4.95 | 110,883 |
| World Capitals by Proximity | 0 | - | 4.90 | 316,561 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 80,163 |
| Moved Capital Cities | 0 | - | 4.95 | 71,295 |
| Countries by Official Language | 0 | - | 4.95 | 186,163 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.90 | 284,802 |
| Countries in their Native Language | 0 | - | 4.99 | 190,506 |
| Independence from Whom | 0 | - | 4.99 | 202,662 |
| Subdivisions by Country | 0 | - | 4.85 | 48,970 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 125,763 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 124,123 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,413 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 122,730 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 73,538 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,591 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 156,954 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,282 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 88,746 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,189 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,089 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,645 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 69,732 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,331 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,523 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,007 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 72,730 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,218 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 100,770 |
| World Map Quiz | 0 | - | 4.87 | 59,165 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 139,429 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 87,834 |
| Countries by Founding Story | 0 | - | 4.95 | 73,922 |
| Countries by Road Signs | 0 | - | 4.98 | 50,471 |
| Southernmost Countries of the World | 0 | - | 4.99 | 220,431 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 100,014 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 117,845 |
| Countries With the Most Languages | 0 | - | 4.89 | 192,059 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.94 | 97,805 |
