| World's Longest Rivers | 0 | - | 4.90 | 137,349 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 164,915 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,912 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,124 |
| North Sea Countries | 0 | - | 4.92 | 87,609 |
| Black Sea Countries | 0 | - | 4.87 | 60,701 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,511 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,618 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,334 |
| Seas on the World Map | 0 | - | 4.96 | 135,766 |
| Seas of the World | 0 | - | 5.00 | 157,875 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,979 |
| Countries with Fjords | 0 | - | 4.94 | 101,192 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,827 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,631 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 97,021 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,830 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,570 |
| Famous Rivers | 0 | - | 4.75 | 105,166 |
| City to River #1 | 0 | - | 4.59 | 35,884 |
| Most Populous River Basins | 0 | - | 4.55 | 39,780 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,426 |
| Countries With No Rivers | 0 | - | 4.96 | 77,036 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,512 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,844 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,287 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,275 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,694 |
| World's Longest Rivers on a Map | 0 | - | 4.90 | 88,138 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,716 |
| Megadiverse Countries | 0 | - | 4.96 | 135,158 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,809 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,905 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,355 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,047 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,093 |
| Rivers by City | 0 | - | 4.38 | 31,760 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,169 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,067 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,678 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,588 |
| Geologic Time Scale | 0 | - | 4.41 | 10,055 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,200 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,840 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,226 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,771 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,672 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,029 |
| Boundary Waters | 0 | - | 4.92 | 88,674 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,332 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,488 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,063 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,794 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,736,667 |
| Biggest City by River | 0 | - | 4.38 | 52,925 |
| Landlocked Countries | 0 | - | 4.99 | 423,864 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,822 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,224 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,716 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,734 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,135 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,369 |
| Himalayan Countries | 0 | - | 4.94 | 139,546 |
| Andean Countries | 0 | - | 4.94 | 85,070 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,252 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,467 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,813 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,125 |
| Danube Countries | 0 | - | 4.97 | 72,215 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,313 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,630 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,717 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,225 |
| European Landlocked Countries | 0 | - | 4.99 | 147,387 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,987 |
| Countries with the Most Species | 0 | - | 4.99 | 103,425 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,116 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,682 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,794 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,704 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,440 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,854 |
| Countries in the Alps | 0 | - | 4.87 | 118,499 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,091 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,463 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,814 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,816 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,750 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,925 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,675 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,302 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,020 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,764 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,632 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,392 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,640 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,726 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,385 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,476 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,265 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,367 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,938 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,671 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,384 |
| Largest Countries By Category | 0 | - | 4.97 | 158,553 |
| Countries by Countries | 0 | - | 4.96 | 63,444 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,018 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,350 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,624 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,296 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,212 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,909 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,438 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,268 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,930 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,662 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,574 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,573 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,445 |
| Longest International Borders | 0 | - | 4.99 | 265,531 |
| Countries with Three Borders | 0 | - | 4.96 | 36,692 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,253 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,374 |
| Demonym of Every Country | 0 | - | 4.90 | 61,167 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,292 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,418 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,122 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,597 |
| Island Countries | 0 | - | 4.99 | 711,788 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,516 |
| Northernmost Countries | 0 | - | 4.99 | 363,101 |
| Countries of South America | 0 | - | 5.00 | 930,013 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,344 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,525 |
| "Land" Countries | 0 | - | 4.98 | 337,896 |
| Top World Languages | 0 | - | 4.92 | 827,287 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,636 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,697 |
| All Country Flags of the World | 0 | - | 5.00 | 3,697,598 |
| Rivers on Borders | 0 | - | 4.02 | 22,726 |
| Rivers A-Z | 0 | - | 4.35 | 32,835 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,647 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,355 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,784 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,939 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,591 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,328 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,743 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,453 |
| Countries with Megacities | 0 | - | 4.99 | 265,894 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,249 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,756 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,504 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,854 |
| Biggest Cities in the World | 0 | - | 4.92 | 803,471 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,964 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,891 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,791 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,978 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,909 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,777 |
| Countries by Capital City | 0 | - | 5.00 | 69,061 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,631 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 115,046 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,048 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,624 |
| Moved Capital Cities | 0 | - | 4.96 | 74,518 |
| Countries by Official Language | 0 | - | 4.95 | 195,654 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,128 |
| Countries in their Native Language | 0 | - | 4.99 | 199,428 |
| Independence from Whom | 0 | - | 4.99 | 212,577 |
| Subdivisions by Country | 0 | - | 4.87 | 50,538 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,078 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,450 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,464 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,346 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,165 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,378 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,702 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,752 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,471 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,749 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,208 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,099 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,273 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,332 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,062 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,479 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,603 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,860 |
| World Map Quiz | 0 | - | 4.81 | 65,387 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,300 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,532 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.84 | 64,385 |
| Countries by Founding Story | 0 | - | 4.95 | 77,543 |
| Countries by Road Signs | 0 | - | 4.98 | 54,212 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,687 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,690 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,343 |
