| Natural Features of Countries #1 | 0 | - | 4.87 | 83,939 |
| Countries with Fjords | 0 | - | 4.94 | 101,118 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,766 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,102 |
| North Sea Countries | 0 | - | 4.92 | 87,543 |
| Black Sea Countries | 0 | - | 4.87 | 60,675 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,487 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,585 |
| Countries With No Rivers | 0 | - | 4.96 | 76,974 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,310 |
| Megadiverse Countries | 0 | - | 4.96 | 135,094 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,728 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,861 |
| African Great Lakes | 0 | - | 4.82 | 66,654 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,569 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,034 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,357 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,787 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,358 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,501 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,177 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 65,700 |
| U.S. Cities with Landforms in The Name | 0 | - | 4.27 | 70,828 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,140 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,079 |
| African Physical Geography | 0 | - | 4.51 | 31,758 |
| Asian Physical Geography | 0 | - | 4.61 | 35,578 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,858 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 39,281 |
| Countries with Glaciers | 0 | - | 4.96 | 105,618 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,756 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,807 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,562 |
| Countries with the Most Sheep | 0 | - | 4.92 | 103,450 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,641 |
| Landforms by Country | 0 | - | 4.52 | 51,993 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,138 |
| Rivers of the United States | 0 | - | 4.93 | 66,423 |
| Boundary Waters | 0 | - | 4.92 | 88,630 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,299 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,393 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 112,735 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,354 |
| Geological Extremes | 0 | - | 4.34 | 40,074 |
| European Physical Geography | 0 | - | 4.26 | 33,559 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 36,058 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,814 |
| Capitals by River | 0 | - | 4.55 | 48,358 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,665,031 |
| Biggest City by River | 0 | - | 4.38 | 52,912 |
| Landlocked Countries | 0 | - | 4.99 | 423,022 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,497 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 55,067 |
| Animal Populations of Countries | 0 | - | 4.52 | 43,961 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,430 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,373 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,765 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,569 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,587 |
| World Capitals Quiz | 0 | - | 5.00 | 5,089,736 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,023 |
| Himalayan Countries | 0 | - | 4.95 | 139,183 |
| Andean Countries | 0 | - | 4.93 | 84,877 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,093 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,233 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,676 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,987 |
| Danube Countries | 0 | - | 4.97 | 72,135 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,189 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,544 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,532 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,043 |
| European Landlocked Countries | 0 | - | 4.99 | 147,280 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,837 |
| Countries with the Most Species | 0 | - | 4.99 | 103,347 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,964 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,647 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,767 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,620 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,366 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,786 |
| Countries in the Alps | 0 | - | 4.87 | 118,363 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,763 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,288 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,757 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,719 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,637 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,043 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,815 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,610 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,249 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,956 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,721 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,590 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,326 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,567 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,636 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,162 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,403 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,755 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,247 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,508 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,430 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,310 |
| Largest Countries By Category | 0 | - | 4.97 | 158,401 |
| Countries by Countries | 0 | - | 4.96 | 63,359 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,326 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,793 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,786,016 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,805 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,894 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,587 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,537 |
| Oceania Physical Geography | 0 | - | 4.30 | 12,709 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,277 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,372 |
| Longest International Borders | 0 | - | 4.99 | 265,388 |
| Countries with Three Borders | 0 | - | 4.96 | 36,655 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,189 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,300 |
| Demonym of Every Country | 0 | - | 4.91 | 60,934 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 332,534 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,593,233 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,842 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,990 |
| Island Countries | 0 | - | 4.99 | 711,424 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,630 |
| Least-Forested Countries | 0 | - | 4.53 | 65,317 |
| Tropical Rainforest Countries | 0 | - | 4.69 | 82,223 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,051,172 |
| Northernmost Countries | 0 | - | 4.99 | 362,490 |
| Countries with the Most Mangroves | 0 | - | 4.54 | 34,684 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,692 |
| Countries of South America | 0 | - | 5.00 | 928,814 |
| Countries of Oceania | 0 | - | 5.00 | 1,058,750 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,880,574 |
| "Land" Countries | 0 | - | 4.98 | 337,637 |
| Countries with More Cows than People | 0 | - | 4.46 | 61,502 |
| Top World Languages | 0 | - | 4.92 | 825,908 |
| South American Physical Geography | 0 | - | 4.58 | 18,380 |
| Seas of Europe | 0 | - | 4.37 | 84,780 |
| Northernmost Countries Without Glaciers | 0 | - | 4.62 | 36,174 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,386,264 |
| Countries with Wild Lions | 0 | - | 4.77 | 26,455 |
| Europe Map Quiz | 0 | - | 5.00 | 4,775,404 |
| All Country Flags of the World | 0 | - | 5.00 | 3,688,513 |
| Rivers A-Z | 0 | - | 4.35 | 32,815 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 53,356 |
| Sea in the Answers | 0 | - | 4.08 | 49,062 |
| Organs of the Human Body (with map) | 0 | - | 4.10 | 119,632 |
| Where Do Musk Oxen Live? | 0 | - | 4.63 | 15,332 |
| Elements Named for Countries | 0 | - | 4.52 | 24,857 |
| Animal Anatomy Quiz | 0 | - | 4.39 | 59,899 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,606 |
| Pacific Ocean General Knowledge | 0 | - | 4.70 | 36,348 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,449,892 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,392 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,207 |
| Countries with Megacities | 0 | - | 4.99 | 265,312 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,030 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,640 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,279 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,712 |
| Biggest Cities in the World | 0 | - | 4.91 | 802,344 |
| Global Cities on a World Map | 0 | - | 4.93 | 136,766 |
| Northernmost Capital Cities | 0 | - | 4.98 | 110,728 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,672 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,845 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 109,712 |
| Same Letter Country and Capital | 0 | - | 4.99 | 157,562 |
| Countries by Capital City | 0 | - | 5.00 | 68,840 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 77,495 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,929 |
| World Capitals by Proximity | 0 | - | 4.90 | 332,586 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 84,520 |
| Moved Capital Cities | 0 | - | 4.96 | 74,431 |
| Countries by Official Language | 0 | - | 4.95 | 195,469 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,672 |
| Countries in their Native Language | 0 | - | 4.99 | 199,245 |
| Independence from Whom | 0 | - | 4.99 | 212,332 |
| Subdivisions by Country | 0 | - | 4.87 | 50,483 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,913 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,275 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,415 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,293 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,141 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,269 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,660 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,618 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,416 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,708 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,181 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,903 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,951 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,269 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,014 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,425 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,549 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,535 |
| World Map Quiz | 0 | - | 4.81 | 65,248 |
