| North Sea Countries | 0 | - | 4.92 | 87,715 |
| Black Sea Countries | 0 | - | 4.87 | 60,752 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,595 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,692 |
| Countries With No Rivers | 0 | - | 4.96 | 77,154 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 23,272 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,377 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,052 |
| Countries with Fjords | 0 | - | 4.94 | 101,347 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.91 | 116,475 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,005 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,017 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,869 |
| Megadiverse Countries | 0 | - | 4.96 | 135,301 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.88 | 29,379 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,190 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,451 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,586 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,557 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,904,604 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,619 |
| Landlocked Countries | 0 | - | 4.99 | 426,234 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,635 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,567 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,662 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,430 |
| Himalayan Countries | 0 | - | 4.93 | 140,388 |
| Andean Countries | 0 | - | 4.94 | 85,546 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,698 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,134 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,265 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,500 |
| Danube Countries | 0 | - | 4.97 | 72,439 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,649 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,875 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,211 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,684 |
| European Landlocked Countries | 0 | - | 4.99 | 147,640 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,355 |
| Countries with the Most Species | 0 | - | 4.99 | 103,591 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,458 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,786 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,899 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,864 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,599 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,044 |
| Countries in the Alps | 0 | - | 4.87 | 118,827 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,716 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,946 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,987 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,061 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,995 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,290 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,441 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,893 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,448 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,214 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,901 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,761 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,585 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,825 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,920 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,929 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,638 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,728 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,715 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,855 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,232 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,534 |
| Largest Countries By Category | 0 | - | 4.97 | 158,910 |
| Countries by Countries | 0 | - | 4.96 | 63,673 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,416 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,130 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,157 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,625 |
| Seas on the World Map | 0 | - | 4.96 | 136,004 |
| Seas of the World | 0 | - | 5.00 | 158,579 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,879 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,723 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,777 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,877 |
| Island Countries | 0 | - | 4.99 | 712,682 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,720 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,128 |
| Northernmost Countries | 0 | - | 4.99 | 364,184 |
| Countries of South America | 0 | - | 5.00 | 933,136 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,015 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,335 |
| "Land" Countries | 0 | - | 4.98 | 338,474 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,741 |
| Landforms by Country | 0 | - | 4.52 | 52,023 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 36,209 |
| African Great Lakes | 0 | - | 4.82 | 67,004 |
| Seas of Europe | 0 | - | 4.37 | 84,932 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,625 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,624 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,257 |
| Countries with Megacities | 0 | - | 4.99 | 267,321 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,939 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,189 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,256 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,305 |
| Countries by Official Language | 0 | - | 4.95 | 196,063 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,712 |
| Countries in their Native Language | 0 | - | 4.99 | 199,796 |
| Independence from Whom | 0 | - | 4.99 | 213,156 |
| Subdivisions by Country | 0 | - | 4.87 | 50,633 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,513 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,992 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,549 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,726 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,233 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,320 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,872 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,150 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,579 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,099 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,266 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,602 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,397 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,456 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,160 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,597 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,899 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,438 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,740 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,330 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,131 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,601 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,669 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,474 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,582 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,777 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,715 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,805 |
| Widest Countries East to West | 0 | - | 4.92 | 130,751 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,609 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,288 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,526 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,082 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,015 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,511 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,513 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,901 |
| Countries with Double Letters | 0 | - | 4.96 | 97,160 |
| Countries that End in N | 0 | - | 4.95 | 172,031 |
| Countries with Five Letters | 0 | - | 4.96 | 284,097 |
| Countries with Six Letters | 0 | - | 4.94 | 214,573 |
| Countries with W | 0 | - | 4.96 | 161,010 |
| Countries with Z | 0 | - | 4.98 | 292,549 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,350 |
| Countries That End in U | 0 | - | 4.95 | 121,222 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,169 |
| Countries that End in O | 0 | - | 4.92 | 160,250 |
| Countries that End in R | 0 | - | 4.87 | 119,203 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,970 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,921 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,203 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,866 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,790 |
| Countries That End in Y | 0 | - | 4.91 | 186,104 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,507 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,307 |
| Countries that End in I | 0 | - | 4.94 | 135,339 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,673 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,081 |
| Countries That End in NIA | 0 | - | 4.92 | 110,088 |
| Countries That End in BIA | 0 | - | 4.93 | 149,610 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,581 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,797 |
| Countries That End in RIA | 0 | - | 4.93 | 127,078 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,425 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,675 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,232 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,673 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,223 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,827 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,353 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,548 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,942 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,666 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,471 |
| Countries that End in L | 0 | - | 4.94 | 157,163 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,154 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,356 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,557 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,035 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,478 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,496 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,181 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,456 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,312 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,018 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,241 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,255 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,844 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,274 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,949 |
| One Border Countries | 0 | - | 4.98 | 472,118 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,654,884 |
