| World's Longest Rivers | 0 | - | 4.89 | 135,676 |
| Countries With No Rivers | 0 | - | 4.96 | 76,676 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,924 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,594 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,217 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,216 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,320 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,969 |
| North Sea Countries | 0 | - | 4.92 | 87,287 |
| Black Sea Countries | 0 | - | 4.87 | 60,566 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,294 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,399 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,167 |
| Seas on the World Map | 0 | - | 4.96 | 135,095 |
| Seas of the World | 0 | - | 5.00 | 156,257 |
| Famous Rivers | 0 | - | 4.75 | 104,854 |
| City to River #1 | 0 | - | 4.59 | 35,824 |
| Most Populous River Basins | 0 | - | 4.55 | 39,673 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,300 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,740 |
| Countries with Fjords | 0 | - | 4.94 | 100,749 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,321 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,609 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,590 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,397 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,885 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,308 |
| Biggest City by River | 0 | - | 4.41 | 52,816 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,017 |
| Rivers by City | 0 | - | 4.38 | 31,696 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,977 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,002 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 163,260 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,694 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,301 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,322 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,649 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,483 |
| Megadiverse Countries | 0 | - | 4.96 | 134,735 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,186 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,986 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,473 |
| Geologic Time Scale | 0 | - | 4.46 | 9,999 |
| Rivers on Borders | 0 | - | 4.02 | 22,681 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,665 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,784 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,209 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,202 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,577 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,006 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,585 |
| Boundary Waters | 0 | - | 4.92 | 88,355 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,058 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,872 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,104 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,301 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,298,547 |
| Landlocked Countries | 0 | - | 4.99 | 418,356 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,815 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,668 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,478 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,577 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,591 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,820 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,506 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,581,897 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,457 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,830 |
| Island Countries | 0 | - | 4.99 | 709,535 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,691 |
| Himalayan Countries | 0 | - | 4.94 | 137,165 |
| Andean Countries | 0 | - | 4.95 | 83,791 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,041 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,434 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,723 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,266 |
| Danube Countries | 0 | - | 4.97 | 71,595 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,461 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,998 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,541 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,603 |
| European Landlocked Countries | 0 | - | 4.99 | 146,705 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,043 |
| Countries with the Most Species | 0 | - | 4.99 | 102,838 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,179 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,408 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,565 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,264 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,939 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,317 |
| Countries in the Alps | 0 | - | 4.87 | 117,602 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,077 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,268 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,373 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,924 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,029 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,403 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,210 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,138 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,934 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,503 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,448 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,308 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,882 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,155 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,171 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,064 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,021 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,541 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,440 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,099 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,094 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,954 |
| Largest Countries By Category | 0 | - | 4.97 | 157,549 |
| Countries by Countries | 0 | - | 4.96 | 62,786 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,132 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,146 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,460 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,344 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,596 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,276 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,494 |
| Northernmost Countries | 0 | - | 4.99 | 360,232 |
| Countries of South America | 0 | - | 5.00 | 922,255 |
| Countries of Oceania | 0 | - | 5.00 | 1,050,127 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,864,863 |
| "Land" Countries | 0 | - | 4.98 | 335,677 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 115,452 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,319 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,715 |
| Top World Languages | 0 | - | 4.92 | 819,656 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,187 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,379 |
| Rivers A-Z | 0 | - | 4.35 | 32,761 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,963 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,036 |
| Longest International Borders | 0 | - | 4.99 | 264,577 |
| Countries with Three Borders | 0 | - | 4.96 | 36,430 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,885 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,979 |
| Demonym of Every Country | 0 | - | 4.91 | 59,109 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,325 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,110 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,841 |
| Countries with Megacities | 0 | - | 4.99 | 254,040 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,699 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,890 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,997 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,879 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,787 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,885 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,206 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,231 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,890 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,520 |
| Countries by Capital City | 0 | - | 5.00 | 67,850 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,927 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,423 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,916 |
| Moved Capital Cities | 0 | - | 4.96 | 74,011 |
| Countries by Official Language | 0 | - | 4.95 | 194,547 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,402 |
| Countries in their Native Language | 0 | - | 4.99 | 198,096 |
| Independence from Whom | 0 | - | 4.99 | 211,206 |
| Subdivisions by Country | 0 | - | 4.86 | 50,266 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,618 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,320 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,157 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,723 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,001 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,655 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,339 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,896 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,798 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,460 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,965 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,843 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,680 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,951 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,751 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,109 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,300 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,374,565 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,054 |
| World Map Quiz | 0 | - | 4.81 | 64,426 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,323 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,974 |
| Countries by Founding Story | 0 | - | 4.95 | 77,022 |
| Countries by Road Signs | 0 | - | 4.98 | 53,605 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,406 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,876 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,587 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,200 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,471 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,641 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,785 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,235 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,237 |
| Widest Countries East to West | 0 | - | 4.92 | 129,320 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,373 |
