| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,030 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,064 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,228 |
| Landlocked Countries | 0 | - | 4.99 | 420,030 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,425,995 |
| Five Closest Countries by Country #3 | 0 | - | 4.97 | 121,231 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,859 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,178 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 80,084 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 73,264 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,630 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,486 |
| Himalayan Countries | 0 | - | 4.95 | 137,907 |
| Andean Countries | 0 | - | 4.95 | 84,169 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,377 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,961 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,034 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,484 |
| Danube Countries | 0 | - | 4.97 | 71,774 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,715 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,172 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,871 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,959 |
| European Landlocked Countries | 0 | - | 4.99 | 146,908 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,302 |
| Countries with the Most Species | 0 | - | 4.99 | 103,044 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,452 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,470 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,638 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,403 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,081 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,470 |
| Countries in the Alps | 0 | - | 4.87 | 117,890 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 97,557 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,612 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,510 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,396 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,244 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,805 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,407 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,291 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,044 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,658 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,549 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,390 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,019 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,312 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,320 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,447 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,141 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,648 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,716 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,951 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,534 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,069 |
| Largest Countries By Category | 0 | - | 4.97 | 157,846 |
| Countries by Countries | 0 | - | 4.97 | 62,961 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,389 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,193 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,498 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,928 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,759 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,454 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,764,639 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,865 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,945 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,924 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,974 |
| Island Countries | 0 | - | 4.99 | 710,215 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,365 |
| Northernmost Countries | 0 | - | 4.99 | 361,033 |
| Countries of South America | 0 | - | 5.00 | 924,505 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,346 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,870,483 |
| "Land" Countries | 0 | - | 4.98 | 336,092 |
| Countries With the Most Neighbors | 0 | - | 4.47 | 102,098 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,515 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,358 |
| Countries with Megacities | 0 | - | 4.99 | 262,940 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,195 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,173 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,498 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,214 |
| Countries by Official Language | 0 | - | 4.95 | 194,860 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,834 |
| Countries in their Native Language | 0 | - | 4.99 | 198,398 |
| Independence from Whom | 0 | - | 4.99 | 211,618 |
| Subdivisions by Country | 0 | - | 4.86 | 50,341 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,913 |
| Megadiverse Countries | 0 | - | 4.96 | 134,848 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,734 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,235 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,817 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,052 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,854 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,455 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,146 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,911 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,545 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,272 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,779 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,846 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,396 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,537 |
| World Map Quiz | 0 | - | 4.81 | 64,797 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,192 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,154 |
| Countries by Founding Story | 0 | - | 4.95 | 77,171 |
| Countries by Road Signs | 0 | - | 4.98 | 53,766 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,716 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,054 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,776 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,666 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,658 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,796 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,934 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,336 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,400 |
| Widest Countries East to West | 0 | - | 4.92 | 129,465 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,410 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,113 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,042 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,606 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,367 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,663 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,292 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,752 |
| Countries with Double Letters | 0 | - | 4.97 | 95,315 |
| Countries that End in N | 0 | - | 4.95 | 170,345 |
| Countries with Five Letters | 0 | - | 4.96 | 281,172 |
| Countries with Six Letters | 0 | - | 4.94 | 212,758 |
| Countries with W | 0 | - | 4.97 | 159,678 |
| Countries with Z | 0 | - | 4.98 | 290,566 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,942 |
| Countries That End in U | 0 | - | 4.95 | 120,501 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,947 |
| Countries that End in O | 0 | - | 4.92 | 159,273 |
| Countries that End in R | 0 | - | 4.87 | 118,794 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,561 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,558 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,294 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,197 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,797 |
| Countries That End in Y | 0 | - | 4.91 | 185,702 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,475 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,571 |
| Countries that End in I | 0 | - | 4.94 | 134,931 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,681 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,649 |
| Countries That End in NIA | 0 | - | 4.92 | 109,603 |
| Countries That End in BIA | 0 | - | 4.93 | 148,959 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,860 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,181 |
| Countries That End in RIA | 0 | - | 4.93 | 126,616 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,750 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,011 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,378 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,765 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,306 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,398 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,773 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,351 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,260 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,267 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,957 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,682 |
| Countries that End in L | 0 | - | 4.94 | 156,630 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,621 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,185 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,901 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,806 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,859 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,015 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,347 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,766 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,276 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,777 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,671 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,004 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,635 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,745 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,081 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,180 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,245 |
| One Border Countries | 0 | - | 4.98 | 468,387 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,356 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,827,262 |
| Countries Closest to the Equator A-Z | 0 | - | 4.53 | 39,200 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,621,027 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,675 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,687 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,843 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,365 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,501 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,049 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,636 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 69,129 |
| Countries by National Anthem | 0 | - | 4.92 | 71,219 |
| NATO Countries | 0 | - | 4.98 | 280,093 |
| EU Countries Quiz | 0 | - | 4.99 | 273,743 |
