| Landlocked Countries | 0 | - | 4.99 | 420,675 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,470,899 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,791 |
| Himalayan Countries | 0 | - | 4.95 | 138,143 |
| Andean Countries | 0 | - | 4.95 | 84,291 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,517 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,383 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,147 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,590 |
| Danube Countries | 0 | - | 4.97 | 71,848 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,819 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,256 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,006 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,458 |
| European Landlocked Countries | 0 | - | 4.99 | 146,987 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,399 |
| Countries with the Most Species | 0 | - | 4.99 | 103,103 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,552 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,511 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,665 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,454 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,127 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,518 |
| Countries in the Alps | 0 | - | 4.87 | 117,973 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,700 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,744 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,553 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,465 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,330 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,839 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,485 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,353 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,085 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,711 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,571 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,425 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,080 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,361 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,371 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,573 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,185 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,701 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,836 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,246 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,709 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,118 |
| Largest Countries By Category | 0 | - | 4.97 | 157,950 |
| Countries by Countries | 0 | - | 4.97 | 63,028 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,482 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,222 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,516 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,520 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,531 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,416 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,090 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,331 |
| Island Countries | 0 | - | 4.99 | 710,476 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,067 |
| Northernmost Countries | 0 | - | 4.99 | 361,298 |
| Countries of South America | 0 | - | 5.00 | 925,284 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,294 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,376 |
| "Land" Countries | 0 | - | 4.98 | 336,631 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,500 |
| Countries with Megacities | 0 | - | 4.99 | 263,531 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,353 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,272 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,635 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,308 |
| Countries by Official Language | 0 | - | 4.95 | 194,968 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,984 |
| Countries in their Native Language | 0 | - | 4.99 | 198,477 |
| Independence from Whom | 0 | - | 4.99 | 211,748 |
| Subdivisions by Country | 0 | - | 4.86 | 50,370 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,010 |
| Megadiverse Countries | 0 | - | 4.96 | 134,901 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,822 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,268 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,852 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,061 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,936 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,490 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,238 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,948 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,570 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,370 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,799 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,104 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,878 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,258 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,422 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,110 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,729 |
| World Map Quiz | 0 | - | 4.81 | 64,892 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,485 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,206 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,813 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,111 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,841 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,817 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,743 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,878 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,180 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,361 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,453 |
| Widest Countries East to West | 0 | - | 4.92 | 129,521 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,418 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,189 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,068 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,646 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,424 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,716 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,316 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,767 |
| Countries with Double Letters | 0 | - | 4.97 | 95,567 |
| Countries that End in N | 0 | - | 4.95 | 170,583 |
| Countries with Five Letters | 0 | - | 4.96 | 281,596 |
| Countries with Six Letters | 0 | - | 4.94 | 212,990 |
| Countries with W | 0 | - | 4.97 | 159,891 |
| Countries with Z | 0 | - | 4.98 | 290,824 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,184 |
| Countries That End in U | 0 | - | 4.95 | 120,595 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,097 |
| Countries that End in O | 0 | - | 4.92 | 159,341 |
| Countries that End in R | 0 | - | 4.87 | 118,831 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,610 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,693 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,373 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,263 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,879 |
| Countries That End in Y | 0 | - | 4.91 | 185,759 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,577 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,654 |
| Countries that End in I | 0 | - | 4.94 | 134,979 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,769 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,700 |
| Countries That End in NIA | 0 | - | 4.92 | 109,647 |
| Countries That End in BIA | 0 | - | 4.93 | 149,013 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,905 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,241 |
| Countries That End in RIA | 0 | - | 4.93 | 126,672 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,814 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,177 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,461 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,850 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,395 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,448 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,841 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,377 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,337 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,308 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,055 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,772 |
| Countries that End in L | 0 | - | 4.94 | 156,689 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,908 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,206 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,921 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,842 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,891 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,460 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,426 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,830 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,361 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,864 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,735 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,027 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,688 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,649 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,771 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,946 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,401 |
| One Border Countries | 0 | - | 4.98 | 468,705 |
| Top Producing Countries | 0 | - | 4.63 | 116,202 |
| ISO Country Codes | 0 | - | 4.48 | 89,760 |
| Countries on the Equator | 0 | - | 4.63 | 140,739 |
| Members of the Arab League | 0 | - | 4.77 | 75,614 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 69,855 |
| Separatist Movements | 0 | - | 4.44 | 45,870 |
| Countries with the Best Passports | 0 | - | 4.73 | 85,159 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,793 |
| Next Country Alphabetically | 0 | - | 4.70 | 86,233 |
| Westernmost Countries | 0 | - | 4.42 | 62,236 |
| Easternmost Countries | 0 | - | 4.75 | 62,870 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 39,629 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 108,538 |
| Indochina Countries | 0 | - | 4.74 | 66,140 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,612 |
| Countries With the Most Conflict Deaths | 0 | - | 4.61 | 96,318 |
| Highest Foreign Aid Recipients | 0 | - | 4.67 | 43,970 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 57,082 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 48,369 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 53,655 |
| Countries that are the Source of Refugees | 0 | - | 4.68 | 60,866 |
| Countries 206 to 242 | 0 | - | 4.74 | 33,913 |
| Most Populous Countries By Category | 0 | - | 4.55 | 85,392 |
| Countries with the Most Turkic People | 0 | - | 4.75 | 45,656 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.74 | 61,546 |
| Flyover Countries | 0 | - | 4.69 | 50,783 |
| Top 50 Countries by Area - In Order | 0 | - | 4.73 | 73,860 |
