| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 30,037 |
| World's Longest Rivers | 0 | - | 4.90 | 137,069 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 81,725 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,079 |
| North Sea Countries | 0 | - | 4.92 | 87,503 |
| Black Sea Countries | 0 | - | 4.87 | 60,657 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,458 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,557 |
| Countries With No Rivers | 0 | - | 4.96 | 76,928 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,286 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 62,303 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,970 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 56,590 |
| Seas on the World Map | 0 | - | 4.96 | 135,563 |
| Seas of the World | 0 | - | 5.00 | 157,473 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,745 |
| Great Lakes Quiz | 0 | - | 4.80 | 50,495 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,907 |
| Countries with Fjords | 0 | - | 4.94 | 101,058 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,663 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,819 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,754 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,573 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,584 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,610 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,150 |
| Famous Lakes Quiz | 0 | - | 4.52 | 24,030 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 164,396 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 29,067 |
| Famous Rivers | 0 | - | 4.75 | 105,073 |
| City to River #1 | 0 | - | 4.59 | 35,865 |
| Most Populous River Basins | 0 | - | 4.55 | 39,748 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,391 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,424 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,778 |
| Megadiverse Countries | 0 | - | 4.96 | 135,042 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,307 |
| Rivers by City | 0 | - | 4.38 | 31,741 |
| City to River #2 - Difficult | 0 | - | 4.64 | 26,118 |
| Largest Rivers by Discharge | 0 | - | 4.54 | 16,040 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,544 |
| Geologic Time Scale | 0 | - | 4.41 | 10,036 |
| Biggest City by River | 0 | - | 4.38 | 52,888 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,923 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,820 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,259 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,258 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,660 |
| Landforms by Description Quiz | 0 | - | 4.33 | 26,026 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,734 |
| Rivers on Borders | 0 | - | 4.02 | 22,711 |
| Boundary Waters | 0 | - | 4.92 | 88,594 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,268 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,300 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,772 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,643 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,607,085 |
| Landlocked Countries | 0 | - | 4.99 | 422,282 |
| World Capitals Quiz | 0 | - | 5.00 | 5,085,054 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,780,881 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,719 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,047 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,446 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,457 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,809 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,259 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,600 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,533 |
| Island Countries | 0 | - | 4.99 | 711,156 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,673 |
| Himalayan Countries | 0 | - | 4.95 | 138,885 |
| Andean Countries | 0 | - | 4.93 | 84,700 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,899 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,952 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,526 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,867 |
| Danube Countries | 0 | - | 4.97 | 72,050 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,067 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,463 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,368 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,857 |
| European Landlocked Countries | 0 | - | 4.99 | 147,181 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,704 |
| Countries with the Most Species | 0 | - | 4.99 | 103,270 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,826 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,612 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,735 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,566 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,258 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,704 |
| Countries in the Alps | 0 | - | 4.87 | 118,260 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,307 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,089 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,687 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,630 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,553 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,974 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,710 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,531 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,201 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,887 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,671 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,546 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,251 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,505 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,563 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,974 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,339 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,178 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,134 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,097 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,213 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,258 |
| Largest Countries By Category | 0 | - | 4.97 | 158,268 |
| Countries by Countries | 0 | - | 4.96 | 63,265 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,733 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,302 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,575 |
| All Countries by Population With a Map | 0 | - | 4.98 | 109,705 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,057 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,701 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,050,247 |
| Northernmost Countries | 0 | - | 4.99 | 362,090 |
| Countries of South America | 0 | - | 5.00 | 927,772 |
| Countries of Oceania | 0 | - | 5.00 | 1,057,531 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,878,294 |
| "Land" Countries | 0 | - | 4.98 | 337,425 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 115,990 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,743 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,864 |
| Top World Languages | 0 | - | 4.92 | 824,718 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,536 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,506 |
| Rivers A-Z | 0 | - | 4.35 | 32,802 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,068 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,318 |
| Longest International Borders | 0 | - | 4.99 | 265,243 |
| Countries with Three Borders | 0 | - | 4.96 | 36,626 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,141 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,242 |
| Demonym of Every Country | 0 | - | 4.91 | 60,779 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,501 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,589 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,975 |
| Countries with Megacities | 0 | - | 4.99 | 264,741 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,815 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,515 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,070 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,591 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,601 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,570 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,571 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,708 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,524 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,371 |
| Countries by Capital City | 0 | - | 5.00 | 68,674 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,399 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,837 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,433 |
| Moved Capital Cities | 0 | - | 4.96 | 74,366 |
| Countries by Official Language | 0 | - | 4.95 | 195,313 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,468 |
| Countries in their Native Language | 0 | - | 4.99 | 199,102 |
| Independence from Whom | 0 | - | 4.99 | 212,170 |
| Subdivisions by Country | 0 | - | 4.86 | 50,440 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,788 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,149 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,377 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,252 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,119 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,172 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,613 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,516 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,051 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,675 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,159 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,731 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,906 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,224 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,985 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,370 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,512 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,384,430 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,275 |
| World Map Quiz | 0 | - | 4.81 | 65,140 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 157,444 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,380 |
| Countries by Founding Story | 0 | - | 4.95 | 77,401 |
| Countries by Road Signs | 0 | - | 4.98 | 54,045 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,146 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,313 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,025 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,286 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,923 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,038 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,323 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,458 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,593 |
| Widest Countries East to West | 0 | - | 4.92 | 129,677 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,464 |
