| North Sea Countries | 0 | - | 4.92 | 86,587 |
| Black Sea Countries | 0 | - | 4.87 | 60,329 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,010 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,094 |
| Countries With No Rivers | 0 | - | 4.96 | 76,008 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,943 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,361 |
| Countries with Fjords | 0 | - | 4.93 | 100,181 |
| Name a Valid Country Bordering Each Sea | 0 | - | 4.90 | 114,713 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,670 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,205 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,279 |
| Megadiverse Countries | 0 | - | 4.97 | 133,866 |
| Countries with the Longest Coastline Bordering Each Other | 0 | - | 4.89 | 28,166 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,114 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,579 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,288 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,399 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,891,441 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,059 |
| Landlocked Countries | 0 | - | 4.99 | 413,285 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,330 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,658 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,369 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,434 |
| Himalayan Countries | 0 | - | 4.95 | 135,218 |
| Andean Countries | 0 | - | 4.94 | 82,758 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,168 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,110 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,836 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,545 |
| Danube Countries | 0 | - | 4.97 | 71,044 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,710 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,501 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,393 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,322 |
| European Landlocked Countries | 0 | - | 4.99 | 145,717 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,143 |
| Countries with the Most Species | 0 | - | 4.99 | 95,224 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,286 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,939 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,549 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,920 |
| Countries in the Alps | 0 | - | 4.87 | 116,767 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,526 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,186 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,984 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,389 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,114 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,968 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,529 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,725 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,086 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,019 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,182 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,022 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,418 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,720 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,996 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,608 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,235 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,732 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,082 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,532 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,574 |
| Largest Countries By Category | 0 | - | 4.97 | 156,695 |
| Countries by Countries | 0 | - | 4.96 | 62,224 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,721 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,451 |
| Countries with the Most Wolves | 0 | - | 4.92 | 106,997 |
| Seas on the World Map | 0 | - | 4.96 | 133,783 |
| Seas of the World | 0 | - | 5.00 | 154,247 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,467 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,464 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,005 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,575 |
| Island Countries | 0 | - | 4.99 | 707,474 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,380 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,026 |
| Northernmost Countries | 0 | - | 4.99 | 357,534 |
| Countries of South America | 0 | - | 5.00 | 914,128 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,680 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,032 |
| "Land" Countries | 0 | - | 4.98 | 333,552 |
| Biggest City by River | 0 | - | 4.41 | 52,690 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,307 |
| Landforms by Country | 0 | - | 4.52 | 51,914 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,888 |
| African Great Lakes | 0 | - | 4.82 | 65,099 |
| Seas of Europe | 0 | - | 4.37 | 83,810 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,442 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,462 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,993 |
| Countries with Megacities | 0 | - | 4.99 | 246,515 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,911 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,795 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,365 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,754 |
| Countries by Official Language | 0 | - | 4.95 | 192,701 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,030 |
| Countries in their Native Language | 0 | - | 4.99 | 196,557 |
| Independence from Whom | 0 | - | 4.99 | 209,592 |
| Subdivisions by Country | 0 | - | 4.86 | 50,050 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,679 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,734 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,903 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,404 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,602 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,972 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,833 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,115 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,201 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,732 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,496 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,397 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,473 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,486 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,645 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,003 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,479 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,284 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,270 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,943 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,905 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,638 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,823 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,028 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,236 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,922 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,305 |
| Widest Countries East to West | 0 | - | 4.92 | 128,573 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,209 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,162 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,549 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,667 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,592 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,008 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,045 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,566 |
| Countries with Double Letters | 0 | - | 4.97 | 93,307 |
| Countries that End in N | 0 | - | 4.94 | 156,371 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,600 |
| Countries with Six Letters | 0 | - | 4.93 | 210,281 |
| Countries with W | 0 | - | 4.97 | 158,175 |
| Countries with Z | 0 | - | 4.98 | 287,787 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,497 |
| Countries That End in U | 0 | - | 4.95 | 119,490 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,469 |
| Countries that End in O | 0 | - | 4.92 | 158,523 |
| Countries that End in R | 0 | - | 4.87 | 118,247 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,844 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,947 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,274 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,453 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,927 |
| Countries That End in Y | 0 | - | 4.90 | 185,181 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,301 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,620 |
| Countries that End in I | 0 | - | 4.94 | 134,375 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,123 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,175 |
| Countries That End in NIA | 0 | - | 4.92 | 108,971 |
| Countries That End in BIA | 0 | - | 4.92 | 147,671 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,023 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,447 |
| Countries That End in RIA | 0 | - | 4.93 | 126,052 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,972 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,116 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,486 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,864 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,320 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,908 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,084 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,611 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,464 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,803 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,770 |
| Countries that End in L | 0 | - | 4.94 | 155,689 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,981 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,975 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,494 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,267 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,405 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,680 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,034 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 125,887 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,136 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,327 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 151,483 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,594 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.81 | 108,158 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,407 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,289 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,799,668 |
| One Border Countries | 0 | - | 4.98 | 464,103 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,586,139 |
