| Five Closest Countries by Country #1 | 0 | - | 5.00 | 231,141 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 182,325 |
| Countries Closest to an Unknown Country A-Z #1 | 0 | - | 4.90 | 71,778 |
| Countries Closest to an Unknown Country A-Z #2 | 0 | - | 4.97 | 65,488 |
| Countries Closest to an Unknown Country A-Z #3 | 0 | - | 4.90 | 55,623 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,863 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,963 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,418 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,787,937 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,678 |
| Countries Closest to the Equator A-Z | 0 | - | 4.56 | 35,607 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,175,018 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,230,902 |
| Members of the Arab League | 0 | - | 4.86 | 66,418 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,590 |
| Himalayan Countries | 0 | - | 4.94 | 108,535 |
| Andean Countries | 0 | - | 4.91 | 60,282 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,448 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,897 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,521 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,876 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,296 |
| Danube Countries | 0 | - | 4.96 | 57,248 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,256 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,315 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,759 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,445 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,091 |
| European Landlocked Countries | 0 | - | 4.99 | 137,244 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,856 |
| Countries with the Most Species | 0 | - | 4.99 | 89,869 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,387 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,038 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,333 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,096 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,906 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,147 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,958 |
| Countries in the Alps | 0 | - | 4.84 | 103,920 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,480 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,623 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,313 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,413 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,937 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,384 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,581 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,796 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,716 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,446 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,210 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,050 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,041 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,610 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,705 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,274 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,663 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,984 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,081 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,814 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,513 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,856 |
| Largest Countries By Category | 0 | - | 4.97 | 146,491 |
| Countries by Countries | 0 | - | 4.95 | 55,651 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,606 |
| Straight Shot to Antarctica | 0 | - | 4.91 | 38,052 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,234 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,151 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,677 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,254 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,863 |
| Island Countries Quiz | 0 | - | 4.99 | 668,919 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,957 |
| Northernmost Countries | 0 | - | 4.99 | 331,015 |
| Countries Whose Center is Closest to the Equator | 0 | - | 4.58 | 52,015 |
| Countries of South America | 0 | - | 5.00 | 810,414 |
| Countries of Oceania | 0 | - | 5.00 | 914,326 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,612,563 |
| Countries With the Most Neighbors | 0 | - | 4.44 | 86,148 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,114 |
| Countries with Megacities | 0 | - | 4.99 | 201,954 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,467 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,996 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,304 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,935 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,187 |
| Countries by Official Language | 0 | - | 4.96 | 175,301 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,387 |
| Countries in their Native Language | 0 | - | 4.98 | 180,668 |
| Independence from Whom | 0 | - | 4.99 | 189,462 |
| Subdivisions by Country | 0 | - | 4.84 | 46,914 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,699 |
| Megadiverse Countries | 0 | - | 4.96 | 126,834 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,984 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,609 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,838 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,386 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,911 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,692 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,054 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,743 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,103 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,285 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,497 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,052 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,638 |
| World Map Quiz | 0 | - | 4.90 | 51,513 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,638 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,765 |
| Countries by Founding Story | 0 | - | 4.93 | 55,937 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,840 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,869 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,206 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,841 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,715 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,112 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,336 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,123 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,609 |
| Widest Countries East to West | 0 | - | 4.93 | 120,581 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,130 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,578 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,851 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,431 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,884 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,678 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,505 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,806 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,421 |
| Countries with Double Letters | 0 | - | 4.96 | 71,874 |
| Countries that End in N | 0 | - | 4.94 | 136,051 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 233,936 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,621 |
| Countries with W | 0 | - | 4.96 | 125,710 |
| Countries with Z | 0 | - | 4.98 | 264,746 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,715 |
| Countries That End in U | 0 | - | 4.95 | 109,359 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,426 |
| Countries that End in O | 0 | - | 4.92 | 148,668 |
| Countries that End in R | 0 | - | 4.85 | 97,328 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 148,316 |
| Countries Ending in "IA" | 0 | - | 4.99 | 174,250 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 157,731 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,719 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 130,661 |
| Countries That End in Y | 0 | - | 4.90 | 162,430 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 163,031 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 122,408 |
| Countries that End in I | 0 | - | 4.92 | 115,212 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 151,671 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 89,401 |
| Countries That End in NIA | 0 | - | 4.92 | 101,836 |
| Countries That End in BIA | 0 | - | 4.91 | 127,333 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 155,194 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 110,996 |
| Countries That End in RIA | 0 | - | 4.90 | 101,908 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,791 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 204,681 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 121,651 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 112,791 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 79,337 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,924 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,867 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 98,192 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,699 |
| Countries with the Word "And" | 0 | - | 4.98 | 85,104 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 42,524 |
| Countries that End in L | 0 | - | 4.95 | 135,859 |
| "Land" Countries | 0 | - | 4.98 | 292,392 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 191,305 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 82,902 |
| City to Country Quiz #1 | 0 | - | 4.95 | 135,386 |
| City to Country Quiz #3 | 0 | - | 4.87 | 101,093 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 72,640 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 211,153 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 171,059 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,845 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 134,957 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 196,460 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 142,606 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,633 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 103,337 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 83,295 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 57,392 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,329,302 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 353,472 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,118,554 |
| One Border Countries | 0 | - | 4.98 | 415,883 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,471,299 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 67,475 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 248,435 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 110,611 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 104,282 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 72,303 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 51,364 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,956 |
| World Capitals by Proximity | 0 | - | 4.89 | 303,819 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 49,336 |
| Countries by National Anthem | 0 | - | 4.95 | 68,668 |
| NATO Countries Quiz | 0 | - | 4.98 | 229,385 |
| EU Countries Quiz | 0 | - | 4.99 | 231,444 |
