| Countries with the Longest Coastlines | 0 | - | 4.81 | 391,687 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.98 | 105,996 |
| Top 10 American Countries by Coastline | 0 | - | 4.95 | 83,666 |
| Countries With No Rivers | 0 | - | 4.96 | 69,721 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,147 |
| Countries with Fjords | 0 | - | 4.92 | 78,935 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 68,634 |
| Capital Cities by Body of Water | 0 | - | 4.87 | 53,476 |
| Countries That Touch the Baltic Sea | 0 | - | 4.99 | 112,454 |
| North Sea Countries | 0 | - | 4.92 | 80,652 |
| Black Sea Countries | 0 | - | 4.88 | 57,507 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 61,534 |
| Caspian Sea Countries | 0 | - | 4.92 | 59,116 |
| Countries with the Shortest Coastlines | 0 | - | 4.81 | 54,694 |
| Megadiverse Countries | 0 | - | 4.96 | 126,150 |
| African Great Lakes | 0 | - | 4.85 | 54,130 |
| Countries with Wild Tigers | 0 | - | 4.95 | 111,893 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,857 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.89 | 79,229 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 128,766 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.91 | 90,047 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,358,484 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 34,982 |
| Countries with the Most Sheep | 0 | - | 4.88 | 82,843 |
| Monarchies Bordering Monarchies | 0 | - | 4.86 | 55,987 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 329,583 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,122,659 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,192,300 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.87 | 208,486 |
| Countries that Catch the Most Fish | 0 | - | 4.89 | 101,964 |
| Countries with the Most Wolves | 0 | - | 4.88 | 79,335 |
| European Countries with One Border | 0 | - | 4.96 | 151,786 |
| European Countries with the Fewest Borders | 0 | - | 4.98 | 145,425 |
| Asian Countries with the Fewest Borders | 0 | - | 4.81 | 88,954 |
| Biggest City by River | 0 | - | 4.42 | 51,043 |
| Cities on a Map of the Great Lakes | 0 | - | 4.42 | 41,323 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 342,987 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 358,982 |
| Members of the Arab League | 0 | - | 4.85 | 64,457 |
| Island Countries Quiz | 0 | - | 4.99 | 664,636 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,810 |
| Himalayan Countries | 0 | - | 4.95 | 106,743 |
| Andean Countries | 0 | - | 4.91 | 59,364 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,419 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,210 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,580 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,499 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,813 |
| Danube Countries | 0 | - | 4.96 | 56,970 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,988 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,097 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,990 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,919 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,190 |
| European Landlocked Countries | 0 | - | 4.99 | 136,330 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,274 |
| Countries with the Most Species | 0 | - | 4.99 | 89,691 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,839 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,866 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,158 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,686 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,654 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,922 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,526 |
| Countries in the Alps | 0 | - | 4.84 | 103,276 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,902 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,321 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,940 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,996 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,464 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,969 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,108 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,481 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,516 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,061 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,825 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,797 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,851 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,171 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,337 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,902 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,334 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,659 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,724 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,303 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,079 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,570 |
| Largest Countries By Category | 0 | - | 4.97 | 145,714 |
| Countries by Countries | 0 | - | 4.96 | 55,122 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,920 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,139 |
| Northernmost Countries | 0 | - | 4.99 | 329,254 |
| Landforms by Country Quiz | 0 | - | 4.54 | 51,287 |
| Countries of South America | 0 | - | 5.00 | 801,997 |
| Countries of Oceania | 0 | - | 5.00 | 903,889 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,592,159 |
| Countries That Border Russia | 0 | - | 4.98 | 428,633 |
| Countries Bordering France | 0 | - | 4.87 | 359,698 |
| Countries Bordering Germany | 0 | - | 4.99 | 342,692 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.76 | 33,953 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 109,687 |
| Richest Countries Bordering Each Other | 0 | - | 4.98 | 129,557 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.90 | 82,094 |
| Countries by Bordering Flags #1 | 0 | - | 4.93 | 94,574 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 75,846 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.96 | 63,366 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,320,036 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,364 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,581 |
| Countries with Megacities | 0 | - | 4.99 | 199,696 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,363 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,973 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 96,962 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,937 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,499 |
| Capitals by River | 0 | - | 4.64 | 47,214 |
| Countries by Official Language | 0 | - | 4.96 | 174,122 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,180 |
| Countries in their Native Language | 0 | - | 4.98 | 179,360 |
| Independence from Whom | 0 | - | 4.99 | 187,516 |
| Subdivisions by Country | 0 | - | 4.82 | 46,681 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,553 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,464 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,115 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,631 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 66,469 |
| South China Sea Countries | 0 | - | 4.81 | 54,080 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,329 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,492 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,795 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,666 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,382 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,669 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,457 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,931 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,567 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,141 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,091,618 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,139 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,287 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,866 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,088 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,673 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,028 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 72,389 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,464 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,531 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,026 |
| Widest Countries East to West | 0 | - | 4.93 | 119,988 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,991 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,788 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,977 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,118 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,983 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,727 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,621 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,246 |
| Countries with Double Letters | 0 | - | 4.96 | 69,944 |
| Countries that End in N | 0 | - | 4.94 | 134,172 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,522 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 188,909 |
| Countries with W | 0 | - | 4.96 | 124,163 |
| Countries with Z | 0 | - | 4.98 | 246,183 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,363 |
| Countries That End in U | 0 | - | 4.95 | 108,298 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,777 |
| Countries that End in O | 0 | - | 4.92 | 147,527 |
| Countries that End in R | 0 | - | 4.84 | 96,837 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,643 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,665 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,890 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,102 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,039 |
| Countries That End in Y | 0 | - | 4.90 | 161,989 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,053 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,533 |
| Countries that End in I | 0 | - | 4.92 | 114,842 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,589 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,946 |
| Countries That End in NIA | 0 | - | 4.93 | 101,349 |
| Countries That End in BIA | 0 | - | 4.91 | 126,721 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,252 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,376 |
| Countries That End in RIA | 0 | - | 4.90 | 101,458 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,092 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 202,898 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,714 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,720 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,366 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,200 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,272 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,615 |
| Countries that End in L | 0 | - | 4.95 | 135,240 |
| "Land" Countries | 0 | - | 4.98 | 291,210 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,406 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,298 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,844 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,647 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,157 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,738 |
