| Landlocked Countries | 0 | - | 4.99 | 426,911 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,942,776 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,213 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,709 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,826 |
| Countries with Fjords | 0 | - | 4.94 | 101,532 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,775 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,744 |
| Himalayan Countries | 0 | - | 4.93 | 140,668 |
| Andean Countries | 0 | - | 4.94 | 85,729 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,850 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,388 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,406 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,635 |
| Danube Countries | 0 | - | 4.97 | 72,514 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,737 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,939 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,363 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,820 |
| European Landlocked Countries | 0 | - | 4.99 | 147,703 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,475 |
| Countries with the Most Species | 0 | - | 4.99 | 103,625 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,576 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,802 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,935 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,900 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,103 |
| Countries in the Alps | 0 | - | 4.87 | 118,917 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,901 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,055 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,037 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,135 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,088 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,355 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,530 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,965 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,492 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,282 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,933 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,815 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,640 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,893 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,988 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,071 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,693 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,120 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,797 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,133 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,391 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,588 |
| Largest Countries By Category | 0 | - | 4.97 | 159,023 |
| Countries by Countries | 0 | - | 4.97 | 63,769 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,378 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,437 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,698 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,191 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,809,841 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,755 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,259 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,955 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,158 |
| Island Countries | 0 | - | 4.99 | 712,870 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,750 |
| Northernmost Countries | 0 | - | 4.99 | 364,432 |
| Countries of South America | 0 | - | 5.00 | 933,741 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,802 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,848 |
| "Land" Countries | 0 | - | 4.98 | 338,846 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,396,027 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,923 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,410 |
| Countries with Megacities | 0 | - | 4.99 | 267,631 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,053 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,281 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,398 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,384 |
| Countries by Official Language | 0 | - | 4.95 | 196,161 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,847 |
| Countries in their Native Language | 0 | - | 4.99 | 199,895 |
| Independence from Whom | 0 | - | 4.99 | 213,312 |
| Subdivisions by Country | 0 | - | 4.87 | 50,651 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,602 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,076 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,566 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,772 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,245 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,215 |
| North Sea Countries | 0 | - | 4.92 | 87,757 |
| Black Sea Countries | 0 | - | 4.87 | 60,783 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,646 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,735 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,408 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,909 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,234 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,604 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,141 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,280 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,700 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,458 |
| Countries With No Rivers | 0 | - | 4.96 | 77,234 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,486 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,195 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,617 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,940 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,630 |
| World Map Quiz | 0 | - | 4.81 | 65,872 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,411 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,708 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,775 |
| Name a Valid Country on Each River | 0 | - | 4.95 | 63,106 |
| Countries by Founding Story | 0 | - | 4.95 | 77,890 |
| Countries by Road Signs | 0 | - | 4.98 | 54,418 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,434 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,189 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,655 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,247 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,819 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,520 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,629 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,820 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,743 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,897 |
| Widest Countries East to West | 0 | - | 4.92 | 130,801 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,623 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,350 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,545 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,131 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,067 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,581 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,526 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,916 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 414,323 |
| Countries with Double Letters | 0 | - | 4.96 | 97,499 |
| Countries that End in N | 0 | - | 4.95 | 172,528 |
| Countries with Five Letters | 0 | - | 4.96 | 284,487 |
| Countries with Six Letters | 0 | - | 4.94 | 214,847 |
| Countries with W | 0 | - | 4.96 | 161,226 |
| Countries with Z | 0 | - | 4.98 | 292,872 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,591 |
| Countries That End in U | 0 | - | 4.95 | 121,346 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,337 |
| Countries that End in O | 0 | - | 4.92 | 160,337 |
| Countries that End in R | 0 | - | 4.87 | 119,258 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,032 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,073 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 183,816 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,102 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,586 |
| Countries That End in Y | 0 | - | 4.91 | 186,151 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,104 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,376 |
| Countries that End in I | 0 | - | 4.94 | 135,391 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,139 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,119 |
| Countries That End in NIA | 0 | - | 4.92 | 110,129 |
| Countries That End in BIA | 0 | - | 4.93 | 149,693 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,885 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,860 |
| Countries That End in RIA | 0 | - | 4.93 | 127,119 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,503 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,850 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,329 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,788 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,339 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,883 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,414 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,582 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,011 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,710 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,856 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,551 |
| Countries that End in L | 0 | - | 4.94 | 157,211 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,400 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,369 |
| City to Country Quiz #1 | 0 | - | 4.96 | 157,853 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,136 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,523 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,591 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,256 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,499 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,376 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,135 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,294 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,283 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,965 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,717 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,867 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,332 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,455,485 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,831 |
| One Border Countries | 0 | - | 4.98 | 472,383 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,684 |
| Countries with the Most Wild Elephants | 0 | - | 4.64 | 55,212 |
| Animal Populations of Countries | 0 | - | 4.52 | 44,099 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,066 |
| Top 15 Countries with the Most Cows | 0 | - | 4.73 | 107,526 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,851,764 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,051 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,657,808 |
