| Landlocked Countries | 0 | - | 4.99 | 420,737 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,475,272 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,827 |
| Himalayan Countries | 0 | - | 4.95 | 138,168 |
| Andean Countries | 0 | - | 4.95 | 84,302 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,527 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,402 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,159 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,594 |
| Danube Countries | 0 | - | 4.97 | 71,853 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,828 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,260 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,016 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,471 |
| European Landlocked Countries | 0 | - | 4.99 | 146,993 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,403 |
| Countries with the Most Species | 0 | - | 4.99 | 103,108 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,560 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,517 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,667 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,129 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,521 |
| Countries in the Alps | 0 | - | 4.87 | 117,986 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,797 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,758 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,469 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,337 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,840 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,490 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,361 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,089 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,715 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,086 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,361 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,383 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,587 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,185 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,704 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,840 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,294 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,722 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,123 |
| Largest Countries By Category | 0 | - | 4.97 | 157,962 |
| Countries by Countries | 0 | - | 4.97 | 63,037 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,486 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,226 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,519 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,529 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,901 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,461 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,102 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,373 |
| Island Countries | 0 | - | 4.99 | 710,511 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,135 |
| Northernmost Countries | 0 | - | 4.99 | 361,331 |
| Countries of South America | 0 | - | 5.00 | 925,342 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,367 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,528 |
| "Land" Countries | 0 | - | 4.98 | 336,737 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,531 |
| Countries with Megacities | 0 | - | 4.99 | 263,569 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,374 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,289 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,649 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,324 |
| Countries by Official Language | 0 | - | 4.95 | 194,982 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,004 |
| Countries in their Native Language | 0 | - | 4.99 | 198,485 |
| Independence from Whom | 0 | - | 4.99 | 211,761 |
| Subdivisions by Country | 0 | - | 4.86 | 50,371 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,015 |
| Megadiverse Countries | 0 | - | 4.96 | 134,902 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,827 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,273 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,856 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,064 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,944 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,496 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,243 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,952 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,573 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,382 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,801 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,111 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,882 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,258 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,424 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,257 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,757 |
| World Map Quiz | 0 | - | 4.81 | 64,898 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,510 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,211 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,826 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,118 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,849 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,831 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,750 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,884 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,187 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,365 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,458 |
| Widest Countries East to West | 0 | - | 4.92 | 129,526 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,419 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,204 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,073 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,651 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,432 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,720 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,319 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,770 |
| Countries with Double Letters | 0 | - | 4.97 | 95,666 |
| Countries that End in N | 0 | - | 4.95 | 170,654 |
| Countries with Five Letters | 0 | - | 4.96 | 281,693 |
| Countries with Six Letters | 0 | - | 4.94 | 213,062 |
| Countries with W | 0 | - | 4.97 | 159,952 |
| Countries with Z | 0 | - | 4.98 | 290,900 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,280 |
| Countries That End in U | 0 | - | 4.95 | 120,635 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,122 |
| Countries that End in O | 0 | - | 4.92 | 159,360 |
| Countries that End in R | 0 | - | 4.87 | 118,848 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,620 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,726 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,400 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,278 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,889 |
| Countries That End in Y | 0 | - | 4.91 | 185,771 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,593 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,660 |
| Countries that End in I | 0 | - | 4.94 | 134,983 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,783 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,706 |
| Countries That End in NIA | 0 | - | 4.92 | 109,650 |
| Countries That End in BIA | 0 | - | 4.93 | 149,022 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,913 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,254 |
| Countries That End in RIA | 0 | - | 4.93 | 126,682 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,830 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,197 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,469 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,858 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,410 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,457 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,854 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,384 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,348 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,316 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,076 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,782 |
| Countries that End in L | 0 | - | 4.94 | 156,694 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,945 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,216 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,926 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,847 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,894 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,477 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,440 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,832 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,368 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,871 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,737 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,028 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,697 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,651 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,773 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,041 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,417 |
| One Border Countries | 0 | - | 4.98 | 468,740 |
| Top Producing Countries | 0 | - | 4.63 | 116,204 |
| ISO Country Codes | 0 | - | 4.48 | 90,014 |
| Countries on the Equator | 0 | - | 4.63 | 140,743 |
| Members of the Arab League | 0 | - | 4.77 | 75,616 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,858 |
| Separatist Movements | 0 | - | 4.44 | 45,871 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,165 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,796 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,234 |
| Westernmost Countries | 0 | - | 4.42 | 62,261 |
| Easternmost Countries | 0 | - | 4.75 | 62,875 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,631 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,542 |
| Indochina Countries | 0 | - | 4.74 | 66,141 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,612 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,322 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,970 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,083 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,372 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,657 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,866 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,915 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,395 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,663 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,550 |
| Flyover Countries | 0 | - | 4.69 | 50,786 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,866 |
