| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,739 |
| World's Longest Rivers | 0 | - | 4.88 | 121,330 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,706 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,788 |
| North Sea Countries | 0 | - | 4.92 | 86,706 |
| Black Sea Countries | 0 | - | 4.87 | 60,385 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,095 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,171 |
| Countries With No Rivers | 0 | - | 4.96 | 76,137 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,000 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,396 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,036 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,771 |
| Seas on the World Map | 0 | - | 4.96 | 134,565 |
| Seas of the World | 0 | - | 5.00 | 155,019 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,107 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,174 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,456 |
| Countries with Fjords | 0 | - | 4.93 | 100,355 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,913 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,355 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,376 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,262 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,053 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,364 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,836 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,936 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,392 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,373 |
| Famous Rivers | 0 | - | 4.74 | 104,641 |
| City to River #1 | 0 | - | 4.59 | 35,764 |
| Most Populous River Basins | 0 | - | 4.61 | 39,585 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,170 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,646 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,531 |
| Biggest City by River | 0 | - | 4.41 | 52,725 |
| Megadiverse Countries | 0 | - | 4.96 | 134,462 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,085 |
| Rivers by City | 0 | - | 4.38 | 31,660 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,847 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,949 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,368 |
| Geologic Time Scale | 0 | - | 4.46 | 9,947 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,040 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,750 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,185 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,168 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,502 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,988 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,384 |
| Rivers on Borders | 0 | - | 4.02 | 22,652 |
| Boundary Waters | 0 | - | 4.92 | 88,135 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,900 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,513 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,610 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,010 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,064,445 |
| Landlocked Countries | 0 | - | 4.99 | 415,439 |
| World Capitals Quiz | 0 | - | 5.00 | 5,043,254 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,607 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,298 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,218 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,111 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,367 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,892 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,090 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,828 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,830 |
| Island Countries | 0 | - | 4.99 | 708,360 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,332 |
| Himalayan Countries | 0 | - | 4.95 | 136,004 |
| Andean Countries | 0 | - | 4.94 | 83,177 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,504 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,643 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,192 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,838 |
| Danube Countries | 0 | - | 4.97 | 71,272 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,009 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,719 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,884 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,833 |
| European Landlocked Countries | 0 | - | 4.99 | 145,976 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,540 |
| Countries with the Most Species | 0 | - | 4.99 | 95,351 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,659 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,272 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,443 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,072 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,720 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,086 |
| Countries in the Alps | 0 | - | 4.86 | 117,136 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,766 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,611 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,162 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,597 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,389 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,148 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,812 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,901 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,698 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,213 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,279 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,142 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,626 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,888 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,900 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,481 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,802 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,350 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,041 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,315 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,221 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,735 |
| Largest Countries By Category | 0 | - | 4.97 | 157,043 |
| Countries by Countries | 0 | - | 4.96 | 62,452 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,685 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,030 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,382 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,292 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,955 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,815 |
| Northernmost Countries | 0 | - | 4.99 | 358,749 |
| Countries of South America | 0 | - | 5.00 | 917,963 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,384 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,631 |
| "Land" Countries | 0 | - | 4.98 | 334,116 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,997 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,897 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,555 |
| Top World Languages | 0 | - | 4.92 | 815,575 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,724 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,287 |
| Rivers A-Z | 0 | - | 4.35 | 32,721 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,928 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,765 |
| Longest International Borders | 0 | - | 4.99 | 264,126 |
| Countries with Three Borders | 0 | - | 4.96 | 36,293 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,711 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,801 |
| Demonym of Every Country | 0 | - | 4.91 | 58,812 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,228 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,728 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,929 |
| Countries with Megacities | 0 | - | 4.99 | 248,239 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,830 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,370 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,209 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,306 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,213 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,365 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,940 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,901 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,084 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,932 |
| Countries by Capital City | 0 | - | 5.00 | 67,171 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,584 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 114,117 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,576 |
| Moved Capital Cities | 0 | - | 4.96 | 73,783 |
| Countries by Official Language | 0 | - | 4.95 | 193,203 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,748 |
| Countries in their Native Language | 0 | - | 4.99 | 197,035 |
| Independence from Whom | 0 | - | 4.99 | 210,179 |
| Subdivisions by Country | 0 | - | 4.86 | 50,151 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,075 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,205 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,016 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,550 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,908 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,889 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,134 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,344 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,455 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,304 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,788 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,945 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,524 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,629 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,590 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,801 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,125 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,318 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,165 |
| World Map Quiz | 0 | - | 4.81 | 63,817 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,688 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,595 |
| Countries by Founding Story | 0 | - | 4.95 | 76,729 |
| Countries by Road Signs | 0 | - | 4.98 | 53,283 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,799 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,532 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,259 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,369 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,123 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,322 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,514 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,084 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,534 |
| Widest Countries East to West | 0 | - | 4.92 | 129,033 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,287 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,500 |
