| World's Longest Rivers | 0 | - | 4.88 | 121,229 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,143 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,622 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,777 |
| North Sea Countries | 0 | - | 4.92 | 86,665 |
| Black Sea Countries | 0 | - | 4.87 | 60,368 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,063 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,150 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,984 |
| Seas on the World Map | 0 | - | 4.96 | 134,450 |
| Seas of the World | 0 | - | 5.00 | 154,700 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,421 |
| Countries with Fjords | 0 | - | 4.93 | 100,285 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,335 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,222 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,986 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,064 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,145 |
| Famous Rivers | 0 | - | 4.74 | 104,588 |
| City to River #1 | 0 | - | 4.59 | 35,759 |
| Most Populous River Basins | 0 | - | 4.61 | 39,569 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,145 |
| Countries With No Rivers | 0 | - | 4.96 | 76,089 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,331 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,494 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,174 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,162 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,481 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,962 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,717 |
| Megadiverse Countries | 0 | - | 4.97 | 133,983 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,842 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,302 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,046 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,920 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,725 |
| Rivers by City | 0 | - | 4.38 | 31,651 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,816 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,931 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,983 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,354 |
| Geologic Time Scale | 0 | - | 4.46 | 9,937 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,799 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,742 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,294 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,457 |
| Biggest City by River | 0 | - | 4.41 | 52,711 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,345 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,982 |
| Boundary Waters | 0 | - | 4.92 | 88,099 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,866 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,421 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,491 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,938 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,003,342 |
| Landlocked Countries | 0 | - | 4.99 | 414,633 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,236 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,114 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,992 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,217 |
| World Capitals Quiz | 0 | - | 5.00 | 5,038,678 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,013 |
| Himalayan Countries | 0 | - | 4.95 | 135,717 |
| Andean Countries | 0 | - | 4.94 | 83,032 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,381 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,451 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,080 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,742 |
| Danube Countries | 0 | - | 4.97 | 71,186 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,907 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,645 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,718 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,618 |
| European Landlocked Countries | 0 | - | 4.99 | 145,881 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,371 |
| Countries with the Most Species | 0 | - | 4.99 | 95,301 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,541 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,239 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,407 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,020 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,658 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,026 |
| Countries in the Alps | 0 | - | 4.86 | 116,990 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,685 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,462 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,111 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,514 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,301 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,095 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,703 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,845 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,605 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,155 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,235 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,103 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,543 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,829 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,833 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,304 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,741 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,313 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,951 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,880 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,007 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,686 |
| Largest Countries By Category | 0 | - | 4.97 | 156,912 |
| Countries by Countries | 0 | - | 4.96 | 62,371 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,555 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,001 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,359 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,216 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,864 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,151 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,816 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,523 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,630 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,270 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,707 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,701 |
| Longest International Borders | 0 | - | 4.99 | 263,984 |
| Countries with Three Borders | 0 | - | 4.96 | 36,254 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,654 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,749 |
| Demonym of Every Country | 0 | - | 4.91 | 58,738 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,222 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,457 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,500 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,371 |
| Island Countries | 0 | - | 4.99 | 708,026 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,858 |
| Northernmost Countries | 0 | - | 4.99 | 358,292 |
| Countries of South America | 0 | - | 5.00 | 916,651 |
| Countries of Oceania | 0 | - | 5.00 | 1,042,668 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,851,914 |
| "Land" Countries | 0 | - | 4.98 | 333,922 |
| Top World Languages | 0 | - | 4.92 | 814,510 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,194 |
| Europe Map Quiz | 0 | - | 5.00 | 4,736,192 |
| All Country Flags of the World | 0 | - | 5.00 | 3,611,873 |
| Rivers on Borders | 0 | - | 4.02 | 22,644 |
| Rivers A-Z | 0 | - | 4.35 | 32,707 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,198 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,224 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,628 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,455 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,081 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,846 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,073 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,712 |
| Countries with Megacities | 0 | - | 4.99 | 247,777 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,564 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,964 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,188 |
| Biggest Cities in the World | 0 | - | 4.91 | 791,790 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,019 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,226 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,840 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,791 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,930 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,755 |
| Countries by Capital City | 0 | - | 5.00 | 66,977 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,497 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,035 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,879 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,515 |
| Moved Capital Cities | 0 | - | 4.96 | 73,710 |
| Countries by Official Language | 0 | - | 4.95 | 192,986 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,437 |
| Countries in their Native Language | 0 | - | 4.99 | 196,845 |
| Independence from Whom | 0 | - | 4.99 | 209,959 |
| Subdivisions by Country | 0 | - | 4.86 | 50,115 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,934 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,015 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,969 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,482 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,889 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,791 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,075 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,221 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,242 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,266 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,768 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,770 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,467 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,568 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,557 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,750 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,078 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,904 |
| World Map Quiz | 0 | - | 4.81 | 63,690 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,265 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,446 |
| Countries by Founding Story | 0 | - | 4.95 | 76,641 |
| Countries by Road Signs | 0 | - | 4.98 | 53,213 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,615 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,390 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,130 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,107 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,028 |
