| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,976 |
| World's Longest Rivers | 0 | - | 4.90 | 136,764 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,494 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,122 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,030 |
| North Sea Countries | 0 | - | 4.92 | 87,405 |
| Black Sea Countries | 0 | - | 4.87 | 60,611 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,391 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,493 |
| Countries With No Rivers | 0 | - | 4.96 | 76,828 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,238 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,149 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,818 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,468 |
| Seas on the World Map | 0 | - | 4.96 | 135,373 |
| Seas of the World | 0 | - | 5.00 | 156,997 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,648 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,408 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,844 |
| Countries with Fjords | 0 | - | 4.94 | 100,913 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,537 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,716 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,693 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,502 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,482 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,561 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,088 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,008 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 163,911 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,903 |
| Famous Rivers | 0 | - | 4.75 | 104,978 |
| City to River #1 | 0 | - | 4.59 | 35,850 |
| Most Populous River Basins | 0 | - | 4.55 | 39,719 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,354 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,733 |
| Megadiverse Countries | 0 | - | 4.96 | 134,903 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 30,260 |
| Rivers by City | 0 | - | 4.38 | 31,721 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,065 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,021 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,522 |
| Geologic Time Scale | 0 | - | 4.41 | 10,016 |
| Biggest City by River | 0 | - | 4.38 | 52,861 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,823 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,802 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,241 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,236 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,631 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,020 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,675 |
| Rivers on Borders | 0 | - | 4.02 | 22,697 |
| Boundary Waters | 0 | - | 4.92 | 88,483 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,177 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,121 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,491 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,483 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,478,930 |
| Landlocked Countries | 0 | - | 4.99 | 420,774 |
| World Capitals Quiz | 0 | - | 5.00 | 5,075,473 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,769,193 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,622 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,860 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,198 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,218 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,491 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,994 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,118 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,406 |
| Island Countries | 0 | - | 4.99 | 710,524 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,846 |
| Himalayan Countries | 0 | - | 4.95 | 138,185 |
| Andean Countries | 0 | - | 4.95 | 84,312 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,537 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,418 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,167 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,597 |
| Danube Countries | 0 | - | 4.97 | 71,858 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,832 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,262 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,022 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,483 |
| European Landlocked Countries | 0 | - | 4.99 | 146,999 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,407 |
| Countries with the Most Species | 0 | - | 4.99 | 103,116 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,567 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,520 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,131 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,525 |
| Countries in the Alps | 0 | - | 4.87 | 117,992 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,855 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,774 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,470 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,341 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,845 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,493 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,363 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,092 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,717 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,087 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,364 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,387 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,596 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,188 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,711 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,850 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,310 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,735 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,127 |
| Largest Countries By Category | 0 | - | 4.97 | 157,971 |
| Countries by Countries | 0 | - | 4.96 | 63,046 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,492 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,227 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,522 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,149 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,831 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,534 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,202 |
| Northernmost Countries | 0 | - | 4.99 | 361,354 |
| Countries of South America | 0 | - | 5.00 | 925,387 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,415 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,642 |
| "Land" Countries | 0 | - | 4.98 | 336,796 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,769 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,582 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,804 |
| Top World Languages | 0 | - | 4.92 | 822,553 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,378 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,450 |
| Rivers A-Z | 0 | - | 4.35 | 32,785 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,645 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,207 |
| Longest International Borders | 0 | - | 4.99 | 264,971 |
| Countries with Three Borders | 0 | - | 4.96 | 36,542 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,027 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,141 |
| Demonym of Every Country | 0 | - | 4.91 | 60,293 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,403 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,387 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,549 |
| Countries with Megacities | 0 | - | 4.99 | 263,616 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,382 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,291 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,664 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,331 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,188 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,280 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,433 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,528 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,266 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,045 |
| Countries by Capital City | 0 | - | 5.00 | 68,329 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,191 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,669 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,229 |
| Moved Capital Cities | 0 | - | 4.96 | 74,223 |
| Countries by Official Language | 0 | - | 4.95 | 194,988 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,013 |
| Countries in their Native Language | 0 | - | 4.99 | 198,495 |
| Independence from Whom | 0 | - | 4.99 | 211,768 |
| Subdivisions by Country | 0 | - | 4.86 | 50,375 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,023 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,831 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,275 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,857 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,065 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,947 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,253 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,576 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,046 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,394 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,801 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,113 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,886 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,260 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,426 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,381 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,772 |
| World Map Quiz | 0 | - | 4.81 | 64,902 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,534 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,215 |
| Countries by Founding Story | 0 | - | 4.95 | 77,242 |
| Countries by Road Signs | 0 | - | 4.98 | 53,853 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,830 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,120 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,849 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,843 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,754 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,888 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,191 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,366 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,462 |
| Widest Countries East to West | 0 | - | 4.92 | 129,529 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,420 |
