| World's Longest Rivers | 0 | - | 4.88 | 121,895 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 162,906 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,927 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,893 |
| North Sea Countries | 0 | - | 4.92 | 86,856 |
| Black Sea Countries | 0 | - | 4.87 | 60,486 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,193 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,300 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,069 |
| Seas on the World Map | 0 | - | 4.96 | 134,836 |
| Seas of the World | 0 | - | 5.00 | 155,701 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,607 |
| Countries with Fjords | 0 | - | 4.93 | 100,550 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,499 |
| Layers of the Earth and Atmosphere | 0 | - | 4.96 | 50,323 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 96,446 |
| Biggest Lakes in the World | 0 | - | 4.63 | 89,182 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,255 |
| Famous Rivers | 0 | - | 4.74 | 104,728 |
| City to River #1 | 0 | - | 4.59 | 35,795 |
| Most Populous River Basins | 0 | - | 4.55 | 39,615 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,225 |
| Countries With No Rivers | 0 | - | 4.96 | 76,263 |
| Name a Valid Country on Each River | 0 | - | 4.96 | 61,576 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,606 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,187 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,539 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 87,246 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,937 |
| Megadiverse Countries | 0 | - | 4.96 | 134,595 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,084 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,461 |
| Gulfs and Bays on the World Map | 0 | - | 4.61 | 30,133 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,968 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,807 |
| Rivers by City | 0 | - | 4.38 | 31,676 |
| City to River #2 - Difficult | 0 | - | 4.64 | 25,922 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,966 |
| American Countries With No Atlantic Coastline | 0 | - | 4.94 | 92,177 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,420 |
| Geologic Time Scale | 0 | - | 4.46 | 9,983 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,923 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,776 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,548 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 412,019 |
| Biggest City by River | 0 | - | 4.41 | 52,764 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,431 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,998 |
| Boundary Waters | 0 | - | 4.92 | 88,280 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,002 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,706 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,908 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,184 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,206,560 |
| Landlocked Countries | 0 | - | 4.99 | 417,208 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,421 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,430 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,371 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,639 |
| World Capitals Quiz | 0 | - | 5.00 | 5,053,772 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,195 |
| Himalayan Countries | 0 | - | 4.95 | 136,742 |
| Andean Countries | 0 | - | 4.95 | 83,593 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,853 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,146 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,519 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,118 |
| Danube Countries | 0 | - | 4.97 | 71,483 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,294 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,892 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,283 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,277 |
| European Landlocked Countries | 0 | - | 4.99 | 146,187 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,860 |
| Countries with the Most Species | 0 | - | 4.99 | 102,345 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,993 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,353 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,535 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,203 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,849 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,231 |
| Countries in the Alps | 0 | - | 4.86 | 117,421 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,957 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,030 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,295 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,798 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,894 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,314 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,062 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,036 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,857 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,389 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,390 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,233 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,782 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,045 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,052 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,828 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,936 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,463 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,298 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,316 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,727 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,870 |
| Largest Countries By Category | 0 | - | 4.97 | 157,350 |
| Countries by Countries | 0 | - | 4.96 | 62,660 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,946 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,102 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,417 |
| All Countries by Population With a Map | 0 | - | 4.98 | 107,927 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,451 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,137 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,744,762 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,171 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,678 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 82,034 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,341 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,577 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,942 |
| Longest International Borders | 0 | - | 4.99 | 264,393 |
| Countries with Three Borders | 0 | - | 4.96 | 36,374 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,817 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,904 |
| Demonym of Every Country | 0 | - | 4.91 | 58,981 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,468 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,180 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,061 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,170 |
| Island Countries | 0 | - | 4.99 | 709,062 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,044,030 |
| Northernmost Countries | 0 | - | 4.99 | 359,679 |
| Countries of South America | 0 | - | 5.00 | 920,452 |
| Countries of Oceania | 0 | - | 5.00 | 1,047,984 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,860,617 |
| "Land" Countries | 0 | - | 4.98 | 335,088 |
| Top World Languages | 0 | - | 4.92 | 818,134 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,371,841 |
| Europe Map Quiz | 0 | - | 5.00 | 4,748,520 |
| All Country Flags of the World | 0 | - | 5.00 | 3,634,894 |
| Rivers on Borders | 0 | - | 4.02 | 22,665 |
| Rivers A-Z | 0 | - | 4.35 | 32,741 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,283 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,262 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,947 |
| The Same Prefixes - Geography | 0 | - | 4.48 | 47,595 |
| "Second Best" Geography Edition #1 | 0 | - | 4.61 | 63,254 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,793 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,072 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,473 |
| Countries with Megacities | 0 | - | 4.99 | 249,383 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,321 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,653 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,645 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,626 |
| Biggest Cities in the World | 0 | - | 4.91 | 794,724 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,559 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,683 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,097 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,127 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,587 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,279 |
| Countries by Capital City | 0 | - | 5.00 | 67,603 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,811 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,310 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,972 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,762 |
| Moved Capital Cities | 0 | - | 4.96 | 73,926 |
| World Capitals with a Unique First Letter | 0 | - | 4.82 | 75,228 |
| Countries by Official Language | 0 | - | 4.95 | 194,208 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,017 |
| Countries in their Native Language | 0 | - | 4.99 | 197,813 |
| Independence from Whom | 0 | - | 4.99 | 210,951 |
| Subdivisions by Country | 0 | - | 4.86 | 50,219 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,435 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,974 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,104 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,660 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,960 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,509 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,268 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,685 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,590 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,400 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,818 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,460 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,609 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,709 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,681 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,890 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,245 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,724 |
| World Map Quiz | 0 | - | 4.81 | 64,206 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 154,679 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,765 |
| Countries within the Arctic Circle - Map Quiz | 0 | - | 4.85 | 63,579 |
| Countries by Founding Story | 0 | - | 4.95 | 76,928 |
| Countries by Road Signs | 0 | - | 4.98 | 53,478 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,168 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,732 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,466 |
