| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,012 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,037 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,196 |
| Landlocked Countries | 0 | - | 4.99 | 419,648 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,389,264 |
| Five Closest Countries by Country #3 | 0 | - | 4.97 | 121,204 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,802 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,138 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 80,048 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 73,234 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,600 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,289 |
| Himalayan Countries | 0 | - | 4.95 | 137,729 |
| Andean Countries | 0 | - | 4.95 | 84,080 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,319 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,848 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,951 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,433 |
| Danube Countries | 0 | - | 4.97 | 71,732 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,657 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,129 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,781 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,861 |
| European Landlocked Countries | 0 | - | 4.99 | 146,857 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,226 |
| Countries with the Most Species | 0 | - | 4.99 | 102,997 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,386 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,455 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,616 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,364 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,040 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,434 |
| Countries in the Alps | 0 | - | 4.87 | 117,808 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,212 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,523 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,466 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,214 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,187 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,773 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,367 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,257 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,017 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,624 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,521 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,368 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,987 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,255 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,273 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,332 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,111 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,620 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,645 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,698 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,418 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,036 |
| Largest Countries By Category | 0 | - | 4.97 | 157,776 |
| Countries by Countries | 0 | - | 4.96 | 62,920 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,320 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,180 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,485 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,785 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,718 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,403 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,761,556 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,838 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,620 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,803 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,652 |
| Island Countries | 0 | - | 4.99 | 710,059 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,848 |
| Northernmost Countries | 0 | - | 4.99 | 360,821 |
| Countries of South America | 0 | - | 5.00 | 923,937 |
| Countries of Oceania | 0 | - | 5.00 | 1,052,522 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,868,897 |
| "Land" Countries | 0 | - | 4.98 | 335,973 |
| Countries With the Most Neighbors | 0 | - | 4.47 | 101,914 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,377,372 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,234 |
| Countries with Megacities | 0 | - | 4.99 | 262,274 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,071 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,107 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,376 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,155 |
| Countries by Official Language | 0 | - | 4.95 | 194,781 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,725 |
| Countries in their Native Language | 0 | - | 4.99 | 198,324 |
| Independence from Whom | 0 | - | 4.99 | 211,506 |
| Subdivisions by Country | 0 | - | 4.86 | 50,317 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,843 |
| Megadiverse Countries | 0 | - | 4.96 | 134,818 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,654 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,218 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,792 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,036 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,801 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,426 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,073 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,887 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,527 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,157 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,756 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,826 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,368 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,394 |
| World Map Quiz | 0 | - | 4.81 | 64,716 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,932 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,107 |
| Countries by Founding Story | 0 | - | 4.95 | 77,131 |
| Countries by Road Signs | 0 | - | 4.98 | 53,724 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,648 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,012 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,742 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,560 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,607 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,760 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,896 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,309 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,348 |
| Widest Countries East to West | 0 | - | 4.92 | 129,438 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,404 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,051 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,027 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,573 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,310 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,623 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,273 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,739 |
| Countries with Double Letters | 0 | - | 4.97 | 95,222 |
| Countries that End in N | 0 | - | 4.95 | 170,220 |
| Countries with Five Letters | 0 | - | 4.96 | 280,913 |
| Countries with Six Letters | 0 | - | 4.94 | 212,659 |
| Countries with W | 0 | - | 4.97 | 159,612 |
| Countries with Z | 0 | - | 4.98 | 290,263 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,852 |
| Countries That End in U | 0 | - | 4.95 | 120,458 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,880 |
| Countries that End in O | 0 | - | 4.92 | 159,243 |
| Countries that End in R | 0 | - | 4.87 | 118,762 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,540 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,462 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,218 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,150 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,749 |
| Countries That End in Y | 0 | - | 4.91 | 185,676 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,388 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,513 |
| Countries that End in I | 0 | - | 4.94 | 134,906 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,424 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,616 |
| Countries That End in NIA | 0 | - | 4.92 | 109,561 |
| Countries That End in BIA | 0 | - | 4.93 | 148,910 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,807 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,131 |
| Countries That End in RIA | 0 | - | 4.93 | 126,585 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,715 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,903 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,323 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,700 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,232 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,379 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,734 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,305 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,223 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,237 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,911 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,635 |
| Countries that End in L | 0 | - | 4.94 | 156,592 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,375 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,168 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,877 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,774 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,821 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,919 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,285 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,714 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,221 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,715 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,639 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,985 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,616 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,712 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,444,384 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,992 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,982 |
| One Border Countries | 0 | - | 4.98 | 468,091 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,329 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,825,484 |
| Countries Closest to the Equator A-Z | 0 | - | 4.53 | 39,185 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,618,730 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,631 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,583 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,775 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,332 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,453 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,008 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,615 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,052 |
| Countries by National Anthem | 0 | - | 4.92 | 71,206 |
| NATO Countries | 0 | - | 4.98 | 279,734 |
| EU Countries Quiz | 0 | - | 4.99 | 273,416 |
