| World's Longest Rivers | 0 | - | 4.87 | 121,054 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,778 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,458 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,740 |
| North Sea Countries | 0 | - | 4.92 | 86,599 |
| Black Sea Countries | 0 | - | 4.87 | 60,339 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,014 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,107 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,952 |
| Seas on the World Map | 0 | - | 4.96 | 133,804 |
| Seas of the World | 0 | - | 5.00 | 154,319 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,371 |
| Countries with Fjords | 0 | - | 4.93 | 100,193 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,273 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,176 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,922 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,991 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,107 |
| Famous Rivers | 0 | - | 4.74 | 104,513 |
| City to River #1 | 0 | - | 4.59 | 35,743 |
| Most Populous River Basins | 0 | - | 4.61 | 39,544 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,115 |
| Countries With No Rivers | 0 | - | 4.96 | 76,023 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,231 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,155 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,434 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,156 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,147 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,449 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,850 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,594 |
| Megadiverse Countries | 0 | - | 4.97 | 133,889 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,696 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,223 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,989 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,913 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,681 |
| Rivers by City | 0 | - | 4.38 | 31,632 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,775 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,919 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,896 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,334 |
| Geologic Time Scale | 0 | - | 4.46 | 9,918 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,752 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,731 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,182 |
| Biggest City by River | 0 | - | 4.41 | 52,692 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,311 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,978 |
| Boundary Waters | 0 | - | 4.92 | 88,033 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,807 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,267 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,269 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,828 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,909,326 |
| Landlocked Countries | 0 | - | 4.99 | 413,486 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,153 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,990 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,599 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,950 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,649 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,533 |
| Himalayan Countries | 0 | - | 4.95 | 135,313 |
| Andean Countries | 0 | - | 4.94 | 82,804 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,201 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,166 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,875 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,582 |
| Danube Countries | 0 | - | 4.97 | 71,067 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,744 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,525 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,446 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,370 |
| European Landlocked Countries | 0 | - | 4.99 | 145,738 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,182 |
| Countries with the Most Species | 0 | - | 4.99 | 95,235 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,319 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,950 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,568 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,943 |
| Countries in the Alps | 0 | - | 4.86 | 116,798 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,548 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,237 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,996 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,407 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,142 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,986 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,557 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,741 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,218 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,040 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,037 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,445 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,728 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,743 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,035 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,627 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,250 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,756 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,217 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,641 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Largest Countries By Category | 0 | - | 4.97 | 156,736 |
| Countries by Countries | 0 | - | 4.96 | 62,247 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,360 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,959 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,329 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,091 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,752 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,588 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,700 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,480 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,541 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,227 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,383 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,613 |
| Longest International Borders | 0 | - | 4.99 | 263,528 |
| Countries with Three Borders | 0 | - | 4.96 | 36,173 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,595 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,661 |
| Demonym of Every Country | 0 | - | 4.91 | 58,633 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,735 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,787 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,076 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,780 |
| Island Countries | 0 | - | 4.99 | 707,569 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,310 |
| Northernmost Countries | 0 | - | 4.99 | 357,663 |
| Countries of South America | 0 | - | 5.00 | 914,491 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,206 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,929 |
| "Land" Countries | 0 | - | 4.98 | 333,616 |
| Top World Languages | 0 | - | 4.92 | 812,986 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,964 |
| Europe Map Quiz | 0 | - | 5.00 | 4,730,862 |
| All Country Flags of the World | 0 | - | 5.00 | 3,601,097 |
| Rivers on Borders | 0 | - | 4.02 | 22,637 |
| Rivers A-Z | 0 | - | 4.35 | 32,683 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,158 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,210 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,484 |
| The Same Prefixes - Geography | 0 | - | 4.49 | 47,391 |
| "Second Best" Geography Edition #1 | 0 | - | 4.64 | 63,024 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,856 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,572 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,116 |
| Countries with Megacities | 0 | - | 4.99 | 246,770 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,043 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,921 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,466 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,811 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,222 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,744 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,927 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,641 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,591 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,603 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,418 |
| Countries by Capital City | 0 | - | 5.00 | 66,624 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,314 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,899 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,334 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,404 |
| Moved Capital Cities | 0 | - | 4.96 | 73,579 |
| Countries by Official Language | 0 | - | 4.95 | 192,746 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,087 |
| Countries in their Native Language | 0 | - | 4.99 | 196,611 |
| Independence from Whom | 0 | - | 4.99 | 209,656 |
| Subdivisions by Country | 0 | - | 4.86 | 50,062 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,724 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,776 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,915 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,423 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,854 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,636 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,988 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,912 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,133 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,543 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,406 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,483 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,493 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,659 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,014 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,546 |
| World Map Quiz | 0 | - | 4.81 | 63,485 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,600 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,317 |
| Countries by Founding Story | 0 | - | 4.95 | 76,521 |
| Countries by Road Signs | 0 | - | 4.98 | 53,090 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,326 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,975 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,935 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,712 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,842 |
