| Countries With No Rivers | 0 | - | 4.96 | 76,012 |
| World's Longest Rivers on a Map | 0 | - | 4.91 | 86,836 |
| Rivers of Europe Quiz | 0 | - | 4.89 | 55,581 |
| World's Longest Rivers | 0 | - | 4.87 | 121,027 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,119 |
| Tectonic Plates Map Quiz | 0 | - | 4.99 | 80,434 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,675 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,209 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,364 |
| Countries with Fjords | 0 | - | 4.93 | 100,181 |
| Tectonic Plates on a Map | 0 | - | 4.97 | 35,267 |
| Layers of the Earth and Atmosphere | 0 | - | 4.97 | 50,167 |
| Largest Lakes in the United States on a Map | 0 | - | 4.90 | 29,675 |
| Biggest City by River | 0 | - | 4.41 | 52,691 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,741 |
| Draw All Country Borders and Borderless Countries | 0 | - | 4.99 | 161,735 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,169 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,734 |
| North Sea Countries | 0 | - | 4.92 | 86,589 |
| Black Sea Countries | 0 | - | 4.87 | 60,331 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,013 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,096 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,948 |
| Famous Rivers | 0 | - | 4.74 | 104,496 |
| City to River #1 | 0 | - | 4.59 | 35,743 |
| Most Populous River Basins | 0 | - | 4.61 | 39,541 |
| Rivers that Flow through the Most Countries | 0 | - | 4.53 | 40,109 |
| Seas on the World Map | 0 | - | 4.96 | 133,788 |
| Seas of the World | 0 | - | 5.00 | 154,269 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,307 |
| Landforms Fill in the Blank | 0 | - | 4.41 | 91,424 |
| Megadiverse Countries | 0 | - | 4.97 | 133,867 |
| Rivers by City | 0 | - | 4.38 | 31,631 |
| City to River #2 - Difficult | 0 | - | 4.63 | 25,773 |
| Largest Rivers by Discharge | 0 | - | 4.53 | 15,919 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,330 |
| Rivers on Borders | 0 | - | 4.02 | 22,636 |
| Geologic Time Scale | 0 | - | 4.46 | 9,916 |
| Seas that Touch the Most Countries | 0 | - | 4.63 | 95,912 |
| Biggest Lakes in the World | 0 | - | 4.62 | 88,981 |
| Great Lakes Quiz | 0 | - | 4.78 | 50,102 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.26 | 70,731 |
| Atlantic Ocean General Knowledge | 0 | - | 4.74 | 21,151 |
| Indian Ocean General Knowledge | 0 | - | 4.52 | 22,144 |
| Bodies of Water by Cities | 0 | - | 4.77 | 28,449 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,281 |
| The Only Country ... | 0 | - | 4.91 | 79,819 |
| The Only African Country ... | 0 | - | 4.99 | 128,329 |
| African Countries by a Single Clue | 0 | - | 4.92 | 67,765 |
| Landforms by Description Quiz | 0 | - | 4.33 | 25,978 |
| Gulfs and Bays on the World Map | 0 | - | 4.62 | 29,987 |
| Famous Lakes Quiz | 0 | - | 4.52 | 23,910 |
| Large Countries with Small Economies | 0 | - | 4.94 | 80,298 |
| African Great Lakes | 0 | - | 4.82 | 65,104 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,241 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,895,121 |
| Landlocked Countries | 0 | - | 4.99 | 413,318 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,779 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,823 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,063 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,136 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,144 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,555 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,907 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,509 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,452 |
| Himalayan Countries | 0 | - | 4.95 | 135,239 |
| Andean Countries | 0 | - | 4.94 | 82,766 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,179 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,118 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,848 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,554 |
| Danube Countries | 0 | - | 4.97 | 71,048 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,717 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,505 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,404 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,332 |
| European Landlocked Countries | 0 | - | 4.99 | 145,720 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,150 |
| Countries with the Most Species | 0 | - | 4.99 | 95,228 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,292 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,941 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,550 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,922 |
| Countries in the Alps | 0 | - | 4.86 | 116,772 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,527 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,193 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,986 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,393 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,117 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,972 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,536 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,727 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,131 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,024 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,185 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,025 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,420 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,724 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,004 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,614 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,240 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,737 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,110 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,543 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,577 |
| Largest Countries By Category | 0 | - | 4.97 | 156,703 |
| Countries by Countries | 0 | - | 4.96 | 62,232 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,953 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,726 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,004 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,719 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,679 |
| Western Europe Map Quiz | 0 | - | 4.87 | 93,475 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,525 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,224 |
| Rivers A-Z | 0 | - | 4.35 | 32,677 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,325 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,595 |
| Longest International Borders | 0 | - | 4.99 | 263,493 |
| Countries with Three Borders | 0 | - | 4.96 | 36,168 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,586 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,644 |
| Demonym of Every Country | 0 | - | 4.91 | 58,616 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,490 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,350 |
| World Cities by Clue #2 | 0 | - | 4.49 | 50,074 |
| Cities that End in A by Clue | 0 | - | 4.55 | 52,751 |
| Cities that End in O by Clue | 0 | - | 4.56 | 60,949 |
| Cities that End in N by Clue | 0 | - | 4.55 | 53,908 |
| Cities that End in I by Clue | 0 | - | 4.62 | 57,042 |
| Cities that End in S by Clue | 0 | - | 4.57 | 44,769 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,022 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,642 |
| Island Countries | 0 | - | 4.99 | 707,494 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,492 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,078 |
| Northernmost Countries | 0 | - | 4.99 | 357,555 |
| Countries of South America | 0 | - | 5.00 | 914,189 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,799 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,213 |
| "Land" Countries | 0 | - | 4.98 | 333,559 |
| The Only Asian Country ... | 0 | - | 4.74 | 121,841 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,954 |
| All Country Flags of the World | 0 | - | 5.00 | 3,599,399 |
| Top World Languages | 0 | - | 4.92 | 812,739 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,890 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,155 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,452 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,510 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,481 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,000 |
| Countries with Megacities | 0 | - | 4.99 | 246,541 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,922 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,801 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,373 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,760 |
| Biggest Cities in the World | 0 | - | 4.92 | 790,006 |
| Global Cities on a World Map | 0 | - | 4.93 | 134,698 |
| Northernmost Capital Cities | 0 | - | 4.98 | 108,889 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,617 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,572 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 107,559 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,351 |
| Countries by Capital City | 0 | - | 5.00 | 66,571 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,291 |
| Capitals of the Largest Countries by Area | 0 | - | 4.96 | 113,872 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,249 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,393 |
| Moved Capital Cities | 0 | - | 4.96 | 73,559 |
| Capitals by River | 0 | - | 4.55 | 48,228 |
| Countries by Official Language | 0 | - | 4.95 | 192,707 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,041 |
| Countries in their Native Language | 0 | - | 4.99 | 196,566 |
| Independence from Whom | 0 | - | 4.99 | 209,609 |
| Subdivisions by Country | 0 | - | 4.86 | 50,052 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,690 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,740 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,904 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,407 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,612 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,976 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,850 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,122 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,204 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,734 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,509 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,400 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,476 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,486 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,646 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,005 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,505 |
| World Map Quiz | 0 | - | 4.81 | 63,459 |
