| Countries with Double Letters | 0 | - | 4.96 | 69,992 |
| Countries that End in N | 0 | - | 4.94 | 134,221 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 231,570 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 188,939 |
| Countries with W | 0 | - | 4.96 | 124,188 |
| Countries with Z | 0 | - | 4.98 | 246,251 |
| Countries with Letters Missing | 0 | - | 4.97 | 168,411 |
| Countries That End in U | 0 | - | 4.95 | 108,326 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 90,817 |
| Countries that End in O | 0 | - | 4.92 | 147,547 |
| Countries that End in R | 0 | - | 4.84 | 96,848 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,663 |
| Countries Ending in "IA" | 0 | - | 4.99 | 172,723 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 156,921 |
| Countries by Last Two Letters | 0 | - | 4.90 | 117,122 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 130,063 |
| Countries That End in Y | 0 | - | 4.90 | 162,004 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 162,085 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 121,560 |
| Countries that End in I | 0 | - | 4.92 | 114,856 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 150,621 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,961 |
| Countries That End in NIA | 0 | - | 4.93 | 101,375 |
| Countries That End in BIA | 0 | - | 4.91 | 126,751 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 154,289 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 110,406 |
| Countries That End in RIA | 0 | - | 4.90 | 101,484 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 101,122 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 202,980 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 120,754 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 111,777 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 78,408 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 93,227 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 97,467 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 43,290 |
| Countries with the Word "And" | 0 | - | 4.98 | 84,311 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 41,647 |
| Countries that End in L | 0 | - | 4.95 | 135,264 |
| "Land" Countries | 0 | - | 4.98 | 291,266 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 190,442 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,303 |
| Countries With One Word and Three A's | 0 | - | 4.87 | 31,391 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 329,861 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,378,541 |
| Countries with Four Letters | 0 | - | 4.99 | 377,014 |
| Members of the Arab League | 0 | - | 4.85 | 64,570 |
| Sahara Desert Countries | 0 | - | 4.97 | 128,904 |
| Himalayan Countries | 0 | - | 4.95 | 106,840 |
| Andean Countries | 0 | - | 4.91 | 59,424 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 60,482 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,255 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 103,618 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,535 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,833 |
| Danube Countries | 0 | - | 4.96 | 56,984 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,006 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,111 |
| Countries with the Best Passports | 0 | - | 4.87 | 72,036 |
| Countries with the Worst Passports | 0 | - | 4.88 | 49,941 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,224 |
| European Landlocked Countries | 0 | - | 4.99 | 136,447 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,352 |
| Countries with the Most Species | 0 | - | 4.99 | 89,701 |
| Countries 197 to 205 | 0 | - | 4.87 | 56,854 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,881 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,171 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,703 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,662 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,934 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,546 |
| Countries in the Alps | 0 | - | 4.84 | 103,307 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,928 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 88,379 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,957 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,012 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,482 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,987 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,138 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,495 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,528 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,083 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,837 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,809 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,863 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,190 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,350 |
| Countries with the Most Grassland | 0 | - | 4.94 | 69,920 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 99,394 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,673 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 53,736 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 199,443 |
| World Countries - Blind Typing | 0 | - | 5.00 | 74,144 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,576 |
| Largest Countries By Category | 0 | - | 4.97 | 145,745 |
| Countries by Countries | 0 | - | 4.96 | 55,145 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,124,762 |
| Country Flags with the Most White | 0 | - | 4.90 | 125,413 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,976 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 44,922 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,958 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,194,095 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 117,168 |
| Can You Name These 50 Random Countries? | 0 | - | 4.98 | 183,294 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 343,062 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 359,211 |
| Island Countries Quiz | 0 | - | 4.99 | 664,873 |
| Biggest Countries by Area | 0 | - | 5.00 | 940,459 |
| Northernmost Countries | 0 | - | 4.99 | 329,342 |
| Countries of South America | 0 | - | 5.00 | 802,466 |
| Countries of Oceania | 0 | - | 5.00 | 904,366 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,593,219 |
| Countries with J | 0 | - | 4.55 | 172,843 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 68,536 |
| Countries by Consonants | 0 | - | 4.44 | 73,394 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 127,632 |
| Countries with Megacities | 0 | - | 4.99 | 199,828 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 173,420 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,006 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 97,017 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,979 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 250,622 |
| Countries by Official Language | 0 | - | 4.96 | 174,185 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 251,278 |
| Countries in their Native Language | 0 | - | 4.98 | 179,406 |
| Independence from Whom | 0 | - | 4.99 | 187,583 |
| Subdivisions by Country | 0 | - | 4.82 | 46,696 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 114,610 |
| Megadiverse Countries | 0 | - | 4.96 | 126,169 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 92,510 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,138 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,636 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 132,365 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,509 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 78,818 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,682 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,396 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,674 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 44,480 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,951 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,584 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,148 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,023 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,648 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 84,430 |
| World Map Quiz | 0 | - | 4.91 | 50,460 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 116,115 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 82,163 |
| Southernmost Countries of the World | 0 | - | 4.99 | 208,541 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,909 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 109,141 |
| Countries With the Most Languages | 0 | - | 4.91 | 175,786 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,063 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 72,438 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 87,503 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 54,566 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,056 |
| Widest Countries East to West | 0 | - | 4.93 | 120,014 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,995 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,824 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,996 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,152 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,024 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,751 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,631 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,252 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,855 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,665 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 72,171 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 209,799 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 168,863 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 117,213 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 134,042 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 195,239 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 141,643 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 66,278 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.84 | 102,799 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,845 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,970 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,320,465 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 351,451 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,092,903 |
| One Border Countries | 0 | - | 4.98 | 412,778 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.75 | 93,674 |
| Most Similar Country Names | 0 | - | 4.15 | 43,913 |
| Longest Country Name A-Z | 0 | - | 4.36 | 37,392 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,431,513 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,796 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 246,836 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,835 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 103,873 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 71,385 |
| Countries by National Anthem | 0 | - | 4.95 | 62,031 |
| NATO Countries Quiz | 0 | - | 4.98 | 227,508 |
| EU Countries Quiz | 0 | - | 4.99 | 229,743 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 145,472 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 78,155 |
| Countries That Use the Euro | 0 | - | 4.93 | 64,759 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 227,629 |
| Countries with Nuclear Weapons | 0 | - | 4.88 | 219,463 |
| German-Speaking Countries | 0 | - | 4.88 | 117,957 |
