| Landlocked Countries Quiz | 0 | - | 4.99 | 396,263 |
| Countries of the World Quiz | 0 | - | 5.00 | 45,392,105 |
| Sahara Desert Countries | 0 | - | 4.98 | 152,312 |
| Himalayan Countries | 0 | - | 4.95 | 128,044 |
| Andean Countries | 0 | - | 4.93 | 72,131 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 59,305 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 117,554 |
| Coffee Producing Countries | 0 | - | 4.84 | 62,674 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 61,736 |
| Danube Countries | 0 | - | 4.97 | 62,443 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 99,074 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 83,458 |
| Countries with the Worst Passports | 0 | - | 4.93 | 77,824 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 142,771 |
| European Landlocked Countries | 0 | - | 4.99 | 143,189 |
| Partially Recognized Countries | 0 | - | 4.98 | 101,207 |
| Countries with the Most Species | 0 | - | 4.99 | 93,677 |
| Countries 197 to 205 | 0 | - | 4.88 | 66,061 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 52,368 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 46,563 |
| Countries that Use the Peso | 0 | - | 4.89 | 57,579 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 71,069 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 55,132 |
| Countries in the Alps | 0 | - | 4.87 | 113,541 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 92,392 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 101,065 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 76,592 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 92,876 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 112,778 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 93,240 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 96,955 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 51,104 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 48,972 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 60,159 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 52,121 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 39,944 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 101,651 |
| Arctic Ocean Countries | 0 | - | 4.94 | 77,122 |
| Countries with the Most Grassland | 0 | - | 4.93 | 75,031 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 112,504 |
| Countries with the Most Climate Zones | 0 | - | 4.95 | 66,030 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 57,877 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.94 | 41,634 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 229,495 |
| World Countries - Blind Typing | 0 | - | 5.00 | 99,783 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 46,245 |
| Largest Countries By Category | 0 | - | 4.97 | 153,560 |
| Countries by Countries | 0 | - | 4.96 | 60,051 |
| Country Flags with the Most White | 0 | - | 4.86 | 134,261 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,212 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 85,564 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,486,416 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,574,188 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 364,966 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 389,992 |
| Island Countries Quiz | 0 | - | 4.99 | 698,837 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,014,018 |
| Northernmost Countries | 0 | - | 4.99 | 347,267 |
| Countries of South America | 0 | - | 5.00 | 884,701 |
| Countries of Oceania | 0 | - | 5.00 | 1,002,988 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,778,971 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 165,132 |
| Countries with Megacities | 0 | - | 4.99 | 225,072 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 191,422 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 108,720 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 130,442 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 76,233 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 308,285 |
| Countries by Official Language | 0 | - | 4.95 | 187,614 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 286,613 |
| Countries in their Native Language | 0 | - | 4.98 | 191,612 |
| Independence from Whom | 0 | - | 4.99 | 204,398 |
| Subdivisions by Country | 0 | - | 4.85 | 49,251 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 126,852 |
| Megadiverse Countries | 0 | - | 4.97 | 132,012 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 125,225 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 53,946 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 123,112 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,095 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.86 | 49,805 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 157,685 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 60,668 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 89,730 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.94 | 150,798 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 81,372 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,849 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 71,137 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 105,703 |
| Countries Furthest from the United States | 0 | - | 4.93 | 86,929 |
| Countries with the Highest HDI | 0 | - | 4.95 | 135,386 |
| Straight Shot to the Arctic Circle | 0 | - | 4.87 | 73,134 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 69,570 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,307,381 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 102,763 |
| World Map Quiz | 0 | - | 4.83 | 60,295 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 88,639 |
| Southernmost Countries of the World | 0 | - | 4.99 | 221,946 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 101,356 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 119,003 |
| Countries With the Most Languages | 0 | - | 4.89 | 193,913 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 106,179 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 90,774 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 95,742 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 59,570 |
| Tallest Countries North to South | 0 | - | 4.83 | 117,533 |
| Widest Countries East to West | 0 | - | 4.92 | 126,494 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,656 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 182,483 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 96,482 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 92,008 |
| Largest Countries as a Percent of Continent | 0 | - | 4.98 | 144,796 |
| Countries with the Most Desert | 0 | - | 4.93 | 125,022 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 68,522 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,051 |
| Countries with Double Letters | 0 | - | 4.97 | 87,710 |
| Countries that End in N | 0 | - | 4.93 | 151,184 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 251,945 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 205,192 |
| Countries with W | 0 | - | 4.97 | 153,794 |
| Countries with Z | 0 | - | 4.98 | 281,280 |
| Countries with Letters Missing | 0 | - | 4.97 | 180,386 |
| Countries That End in U | 0 | - | 4.95 | 116,944 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 104,524 |
| Countries that End in O | 0 | - | 4.92 | 156,371 |
| Countries that End in R | 0 | - | 4.83 | 101,264 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 153,169 |
| Countries Ending in "IA" | 0 | - | 4.99 | 202,113 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 166,278 |
| Countries by Last Two Letters | 0 | - | 4.88 | 132,307 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 138,265 |
| Countries That End in Y | 0 | - | 4.91 | 183,666 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 193,017 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.93 | 148,840 |
| Countries that End in I | 0 | - | 4.92 | 118,491 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 178,807 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 93,735 |
| Countries That End in NIA | 0 | - | 4.92 | 107,280 |
| Countries That End in BIA | 0 | - | 4.92 | 145,457 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 163,243 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 116,427 |
| Countries That End in RIA | 0 | - | 4.92 | 124,233 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 107,785 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 219,824 |
| Divided Country Name Puzzle #2 | 0 | - | 4.98 | 129,588 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 121,699 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 87,462 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 72,502 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 50,214 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 100,301 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 121,979 |
| Countries that are Free from U.S.A. | 0 | - | 4.88 | 47,483 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 50,104 |
| Countries that End in L | 0 | - | 4.94 | 153,614 |
| "Land" Countries | 0 | - | 4.98 | 302,941 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 200,455 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 84,411 |
| City to Country Quiz #1 | 0 | - | 4.96 | 152,962 |
| City to Country Quiz #3 | 0 | - | 4.88 | 106,899 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 76,884 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 223,192 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 195,293 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 123,768 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 159,067 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 219,264 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 149,140 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 69,606 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 106,680 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.94 | 85,465 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 60,725 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,402,220 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 369,156 |
| One Border Countries | 0 | - | 4.97 | 451,019 |
| Top Producing Countries | 0 | - | 4.63 | 114,963 |
| Country Codes Quiz | 0 | - | 4.45 | 81,328 |
| Countries on the Equator | 0 | - | 4.69 | 138,821 |
| Members of the Arab League | 0 | - | 4.78 | 75,044 |
| Countries with the Oldest Median Age | 0 | - | 4.80 | 68,740 |
| Separatist Movements | 0 | - | 4.44 | 45,017 |
| Countries with the Best Passports | 0 | - | 4.79 | 82,915 |
| Prime Meridian Countries | 0 | - | 4.69 | 59,174 |
| Next Country Alphabetically | 0 | - | 4.70 | 84,494 |
| Westernmost Countries | 0 | - | 4.50 | 49,052 |
| Easternmost Countries | 0 | - | 4.74 | 62,135 |
| Countries With the Most ISIS Fighters | 0 | - | 4.54 | 38,972 |
| Top 10 Most Famous Island Countries | 0 | - | 4.69 | 106,063 |
| Indochina Countries | 0 | - | 4.70 | 65,223 |
| Atlantic Ocean Island Countries | 0 | - | 4.56 | 64,237 |
| Countries With the Most Conflict Deaths | 0 | - | 4.63 | 94,967 |
| Highest Foreign Aid Recipients | 0 | - | 4.64 | 43,611 |
| Pacific Ocean Island Countries | 0 | - | 4.49 | 56,585 |
| Countries with the Most Traffic-Related Deaths | 0 | - | 4.74 | 47,670 |
| Countries with the Lowest Obesity Rate | 0 | - | 4.47 | 52,657 |
| Countries that are the Source of Refugees | 0 | - | 4.69 | 59,688 |
| Countries 206 to 242 | 0 | - | 4.70 | 33,147 |
| Most Populous Countries By Category | 0 | - | 4.56 | 83,721 |
| Countries with the Most Turkic People | 0 | - | 4.74 | 44,682 |
| Countries Most-Mentioned by the New York Times, 1900–2018 | 0 | - | 4.75 | 60,410 |
| Flyover Countries | 0 | - | 4.63 | 49,846 |
| Top 50 Countries by Area - In Order | 0 | - | 4.70 | 71,937 |
| Countries with the Most Coral Reefs | 0 | - | 4.74 | 47,712 |
