| World's Longest Rivers | 0 | - | 4.87 | 120,956 |
| Countries With No Rivers | 0 | - | 4.96 | 75,978 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,166 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,767 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,541 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,341 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,720 |
| North Sea Countries | 0 | - | 4.92 | 86,562 |
| Black Sea Countries | 0 | - | 4.87 | 60,298 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 64,980 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,071 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,925 |
| Seas on the World Map | 0 | - | 4.96 | 133,694 |
| Seas of the World | 0 | - | 5.00 | 154,033 |
| Famous Rivers | 0 | - | 4.74 | 104,460 |
| City to River #1 | 0 | - | 4.59 | 35,739 |
| Most Populous River Basins | 0 | - | 4.61 | 39,526 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,084 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,332 |
| Countries with Fjords | 0 | - | 4.93 | 100,144 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,621 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,176 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,242 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,146 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,648 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 91,832 |
| Biggest City by River | 0 | - | 4.41 | 52,681 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,721 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,736 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,913 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,567 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,108 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,942 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,069 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,000 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,401 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,290 |
| Megadiverse Countries | 0 | - | 4.97 | 133,829 |
| Rivers by City | 0 | - | 4.38 | 31,620 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,962 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,903 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,321 |
| Geologic Time Scale | 0 | - | 4.46 | 9,904 |
| Rivers on Borders | 0 | - | 4.02 | 22,630 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,884 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,725 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,140 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,135 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,438 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,976 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,252 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,787 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,172 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,126 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,759 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,849,548 |
| Landlocked Countries | 0 | - | 4.99 | 412,859 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,399 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,558 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,103 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,898 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,457 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,836 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 322,994 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,568,868 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,820 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 400,987 |
| Island Countries | 0 | - | 4.99 | 707,225 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,225 |
| Himalayan Countries | 0 | - | 4.95 | 135,045 |
| Andean Countries | 0 | - | 4.94 | 82,658 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,078 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,979 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,752 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,458 |
| Danube Countries | 0 | - | 4.97 | 70,991 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,634 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,452 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,286 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,193 |
| European Landlocked Countries | 0 | - | 4.99 | 145,664 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,046 |
| Countries with the Most Species | 0 | - | 4.99 | 95,184 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,188 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,174 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,333 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,907 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,510 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,864 |
| Countries in the Alps | 0 | - | 4.87 | 116,680 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,466 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,074 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,937 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,318 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,063 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,934 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,468 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,683 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,413 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,965 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,361 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,670 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,671 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,857 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,565 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,199 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,661 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,819 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,357 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,537 |
| Largest Countries By Category | 0 | - | 4.97 | 156,604 |
| Countries by Countries | 0 | - | 4.96 | 62,162 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,207 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,931 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,306 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,649 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,299 |
| Northernmost Countries | 0 | - | 4.99 | 357,231 |
| Countries of South America | 0 | - | 5.00 | 913,342 |
| Countries of Oceania | 0 | - | 5.00 | 1,038,565 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,059 |
| "Land" Countries | 0 | - | 4.98 | 333,407 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,631 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,626 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,454 |
| Top World Languages | 0 | - | 4.92 | 811,923 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,476 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,211 |
| Rivers A-Z | 0 | - | 4.35 | 32,668 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,129 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,539 |
| Longest International Borders | 0 | - | 4.99 | 263,362 |
| Countries with Three Borders | 0 | - | 4.96 | 36,130 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,550 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,602 |
| Demonym of Every Country | 0 | - | 4.91 | 58,564 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,122 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,371 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,855 |
| Countries with Megacities | 0 | - | 4.99 | 246,164 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,774 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,729 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,238 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,664 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,569 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,807 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,560 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,510 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,476 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,210 |
| Countries by Capital City | 0 | - | 5.00 | 66,453 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,220 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,805 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,334 |
| Moved Capital Cities | 0 | - | 4.96 | 73,507 |
| Countries by Official Language | 0 | - | 4.95 | 192,581 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,855 |
| Countries in their Native Language | 0 | - | 4.99 | 196,461 |
| Independence from Whom | 0 | - | 4.99 | 209,453 |
| Subdivisions by Country | 0 | - | 4.86 | 50,034 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,580 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,645 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,876 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,372 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,836 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,535 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,937 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,586 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,059 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,175 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,711 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,368 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,360 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,424 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,441 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,600 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,978 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,359,980 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,333 |
| World Map Quiz | 0 | - | 4.81 | 63,351 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,196 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,216 |
| Countries by Founding Story | 0 | - | 4.95 | 76,441 |
| Countries by Road Signs | 0 | - | 4.98 | 52,975 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,149 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,875 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,847 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,499 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,762 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,958 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,167 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,876 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,251 |
| Widest Countries East to West | 0 | - | 4.92 | 128,518 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,191 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,073 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,519 |
