| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,936 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,903 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,069 |
| Landlocked Countries | 0 | - | 4.99 | 418,060 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,273,112 |
| Five Closest Countries by Country #3 | 0 | - | 4.97 | 121,052 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,534 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,958 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.91 | 79,898 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.96 | 73,105 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.91 | 61,494 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,558 |
| Himalayan Countries | 0 | - | 4.94 | 137,045 |
| Andean Countries | 0 | - | 4.95 | 83,742 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,991 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,358 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,665 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,237 |
| Danube Countries | 0 | - | 4.97 | 71,565 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,419 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,977 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,492 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,547 |
| European Landlocked Countries | 0 | - | 4.99 | 146,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,003 |
| Countries with the Most Species | 0 | - | 4.99 | 102,749 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,142 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,389 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,555 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,250 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,920 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,304 |
| Countries in the Alps | 0 | - | 4.87 | 117,557 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,044 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,197 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,360 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,893 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,002 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,386 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,168 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,114 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,918 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,479 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,437 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,298 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,857 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,121 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,147 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,001 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,997 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,519 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,405 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,904 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,014 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,930 |
| Largest Countries By Category | 0 | - | 4.97 | 157,509 |
| Countries by Countries | 0 | - | 4.96 | 62,760 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,081 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,131 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,451 |
| All Countries by Population With a Map | 0 | - | 4.98 | 108,233 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.97 | 98,565 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,245 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,751,345 |
| Straight Shot to Antarctica | 0 | - | 4.94 | 42,760 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 328,195 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,367 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,648 |
| Island Countries | 0 | - | 4.99 | 709,376 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,045,077 |
| Northernmost Countries | 0 | - | 4.99 | 360,086 |
| Countries of South America | 0 | - | 5.00 | 921,831 |
| Countries of Oceania | 0 | - | 5.00 | 1,049,657 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,863,729 |
| "Land" Countries | 0 | - | 4.98 | 335,575 |
| Countries With the Most Neighbors | 0 | - | 4.47 | 99,284 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,373,788 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,723 |
| Countries with Megacities | 0 | - | 4.99 | 249,849 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,559 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,809 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,876 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,800 |
| Countries by Official Language | 0 | - | 4.95 | 194,473 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,306 |
| Countries in their Native Language | 0 | - | 4.99 | 198,038 |
| Independence from Whom | 0 | - | 4.99 | 211,147 |
| Subdivisions by Country | 0 | - | 4.86 | 50,252 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,575 |
| Megadiverse Countries | 0 | - | 4.96 | 134,707 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,168 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,148 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,706 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,992 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,620 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,319 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,844 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,768 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,449 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,694 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,665 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,734 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,281 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,956 |
| World Map Quiz | 0 | - | 4.81 | 64,386 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 155,136 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,942 |
| Countries by Founding Story | 0 | - | 4.95 | 76,994 |
| Countries by Road Signs | 0 | - | 4.98 | 53,577 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,325 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,831 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,554 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,095 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,440 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,609 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,754 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,218 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,219 |
| Widest Countries East to West | 0 | - | 4.92 | 129,284 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,368 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,843 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,973 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,452 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,129 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,477 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,200 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,708 |
| Countries with Double Letters | 0 | - | 4.97 | 94,928 |
| Countries that End in N | 0 | - | 4.95 | 169,556 |
| Countries with Five Letters | 0 | - | 4.96 | 278,717 |
| Countries with Six Letters | 0 | - | 4.94 | 212,272 |
| Countries with W | 0 | - | 4.97 | 159,398 |
| Countries with Z | 0 | - | 4.98 | 289,610 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,597 |
| Countries That End in U | 0 | - | 4.95 | 120,349 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,614 |
| Countries that End in O | 0 | - | 4.92 | 159,143 |
| Countries that End in R | 0 | - | 4.87 | 118,682 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,468 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,179 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,016 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,011 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,597 |
| Countries That End in Y | 0 | - | 4.90 | 185,605 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,110 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,325 |
| Countries that End in I | 0 | - | 4.94 | 134,820 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,953 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,532 |
| Countries That End in NIA | 0 | - | 4.92 | 109,454 |
| Countries That End in BIA | 0 | - | 4.93 | 148,764 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,624 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,983 |
| Countries That End in RIA | 0 | - | 4.93 | 126,463 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,556 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,482 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,110 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,451 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,015 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,268 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,599 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,157 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,044 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,156 |
| Countries with the Word "And" | 0 | - | 4.99 | 116,740 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,436 |
| Countries that End in L | 0 | - | 4.94 | 156,479 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 213,655 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,139 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,795 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,667 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,716 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,606 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,031 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,533 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,003 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,483 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,490 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 70,919 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,339 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,572 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,602 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,442,090 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,411 |
| World Capitals by Proximity | 0 | - | 4.91 | 330,352 |
| One Border Countries | 0 | - | 4.98 | 467,244 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,230 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,819,477 |
| Countries Closest to the Equator A-Z | 0 | - | 4.53 | 39,126 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,611,171 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 86,442 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,211 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,556 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,199 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,263 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 58,825 |
| Nearest Capital City #1 | 0 | - | 4.83 | 57,527 |
| Capitals Furthest from the Border | 0 | - | 4.96 | 68,784 |
| Countries by National Anthem | 0 | - | 4.93 | 71,161 |
| NATO Countries | 0 | - | 4.98 | 278,892 |
