| World's Longest Rivers | 0 | - | 4.88 | 121,779 |
| Countries With No Rivers | 0 | - | 4.96 | 76,188 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,473 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,148 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,862 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,837 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,825 |
| North Sea Countries | 0 | - | 4.92 | 86,753 |
| Black Sea Countries | 0 | - | 4.87 | 60,410 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,127 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,224 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,019 |
| Seas on the World Map | 0 | - | 4.96 | 134,701 |
| Seas of the World | 0 | - | 5.00 | 155,344 |
| Famous Rivers | 0 | - | 4.74 | 104,674 |
| City to River #1 | 0 | - | 4.59 | 35,778 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,202 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,484 |
| Countries with Fjords | 0 | - | 4.93 | 100,432 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,999 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,408 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,436 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,297 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,774 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,110 |
| Biggest City by River | 0 | - | 4.41 | 52,747 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,867 |
| Rivers by City | 0 | - | 4.38 | 31,668 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,885 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,960 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,698 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,467 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,151 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,227 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,846 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,574 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,401 |
| Megadiverse Countries | 0 | - | 4.96 | 134,522 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,111 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,955 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,378 |
| Geologic Time Scale | 0 | - | 4.46 | 9,967 |
| Rivers on Borders | 0 | - | 4.02 | 22,658 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,083 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,758 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,194 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,179 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,516 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,993 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,411 |
| Boundary Waters | 0 | - | 4.92 | 88,214 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,953 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,631 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,783 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,102 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,148,023 |
| Landlocked Countries | 0 | - | 4.99 | 416,468 |
| World Capitals Quiz | 0 | - | 5.00 | 5,049,201 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,739,233 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,355 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,322 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,258 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,513 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,662 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,388 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,755 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,627 |
| Island Countries | 0 | - | 4.99 | 708,746 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,842 |
| Himalayan Countries | 0 | - | 4.95 | 136,424 |
| Andean Countries | 0 | - | 4.95 | 83,442 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,713 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,939 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,391 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,992 |
| Danube Countries | 0 | - | 4.97 | 71,377 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,184 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,838 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,118 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,074 |
| European Landlocked Countries | 0 | - | 4.99 | 146,112 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,727 |
| Countries with the Most Species | 0 | - | 4.99 | 101,110 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,866 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,317 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,500 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,137 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,795 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,168 |
| Countries in the Alps | 0 | - | 4.86 | 117,306 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,879 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,847 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,239 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,723 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,798 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,234 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,961 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,983 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,789 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,317 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,348 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,196 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,706 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,981 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,992 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,669 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,879 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,416 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,213 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,896 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,520 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,810 |
| Largest Countries By Category | 0 | - | 4.97 | 157,226 |
| Countries by Countries | 0 | - | 4.96 | 62,577 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,852 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,075 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,406 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,652 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,377 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,067 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,110 |
| Northernmost Countries | 0 | - | 4.99 | 359,269 |
| Countries of South America | 0 | - | 5.00 | 919,398 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,302 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,968 |
| "Land" Countries | 0 | - | 4.98 | 334,529 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,117 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,013 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,616 |
| Top World Languages | 0 | - | 4.92 | 817,059 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,901 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,321 |
| Rivers A-Z | 0 | - | 4.35 | 32,735 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,181 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,833 |
| Longest International Borders | 0 | - | 4.99 | 264,274 |
| Countries with Three Borders | 0 | - | 4.96 | 36,340 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,770 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,862 |
| Demonym of Every Country | 0 | - | 4.91 | 58,898 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,259 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,841 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,225 |
| Countries with Megacities | 0 | - | 4.99 | 248,834 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,073 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,519 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,443 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,470 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,426 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,544 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,031 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,026 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,270 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,128 |
| Countries by Capital City | 0 | - | 5.00 | 67,427 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,717 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,228 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,674 |
| Moved Capital Cities | 0 | - | 4.96 | 73,863 |
| Countries by Official Language | 0 | - | 4.95 | 193,960 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,465 |
| Countries in their Native Language | 0 | - | 4.99 | 197,588 |
| Independence from Whom | 0 | - | 4.99 | 210,750 |
| Subdivisions by Country | 0 | - | 4.86 | 50,188 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,288 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,789 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,072 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,619 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,943 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,421 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,204 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,543 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,532 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,360 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,803 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,133 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,575 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,678 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,633 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,843 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,193 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,949 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,481 |
| World Map Quiz | 0 | - | 4.81 | 64,051 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,263 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,670 |
| Countries by Founding Story | 0 | - | 4.95 | 76,851 |
| Countries by Road Signs | 0 | - | 4.98 | 53,392 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,024 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,645 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,375 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,651 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,241 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,438 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,607 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,137 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,624 |
| Widest Countries East to West | 0 | - | 4.92 | 129,124 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,322 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,622 |
