| Spanish-Speaking Countries | 0 | - | 4.94 | 340,598 |
| Countries by Official Language | 0 | - | 4.95 | 165,941 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 248,734 |
| Countries in their Native Language | 0 | - | 4.98 | 178,009 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,087 |
| German-Speaking Countries | 0 | - | 4.88 | 117,464 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,843,861 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 322,749 |
| English Speaking Countries | 0 | - | 4.72 | 338,620 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,062,003 |
| Members of the Arab League | 0 | - | 4.85 | 61,509 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,589 |
| Himalayan Countries | 0 | - | 4.94 | 104,479 |
| Andean Countries | 0 | - | 4.91 | 57,902 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,836 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,200 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,531 |
| Coffee Producing Countries | 0 | - | 4.81 | 53,971 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,215 |
| Danube Countries | 0 | - | 4.97 | 56,588 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,615 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,791 |
| Countries with the Best Passports | 0 | - | 4.87 | 71,023 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,239 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,008 |
| European Landlocked Countries | 0 | - | 4.99 | 115,061 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,225 |
| Countries with the Most Species | 0 | - | 4.99 | 89,444 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,256 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,634 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,970 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,175 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,363 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,642 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,061 |
| Countries in the Alps | 0 | - | 4.83 | 102,488 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,180 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,840 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,492 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,142 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,845 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,447 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,517 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,075 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,263 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,560 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,330 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,524 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,613 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,374 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,863 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,362 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,739 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,269 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,310 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,575 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,591 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,220 |
| Largest Countries By Category | 0 | - | 4.96 | 144,709 |
| Countries by Countries | 0 | - | 4.96 | 54,539 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,164 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,635 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,019 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 118,402 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 354,804 |
| Island Countries Quiz | 0 | - | 4.99 | 659,678 |
| Biggest Countries by Area | 0 | - | 5.00 | 931,643 |
| Northernmost Countries | 0 | - | 4.99 | 326,786 |
| Countries of South America | 0 | - | 5.00 | 791,493 |
| Countries of Oceania | 0 | - | 5.00 | 891,458 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,143,843 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,568,505 |
| Top World Languages | 0 | - | 4.91 | 706,244 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.71 | 104,637 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,575 |
| Countries with Megacities | 0 | - | 4.99 | 196,768 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,162 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,726 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,055 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,686 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,420 |
| Independence from Whom | 0 | - | 4.99 | 185,257 |
| Subdivisions by Country | 0 | - | 4.82 | 46,390 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,236 |
| Megadiverse Countries | 0 | - | 4.96 | 125,221 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,587 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,329 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,426 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,070 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,699 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,021 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,975 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,299 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,664 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,517 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,921 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,918 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,466 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,179 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 81,847 |
| World Map Quiz | 0 | - | 4.90 | 49,161 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 112,953 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 81,355 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,465 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,763 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,855 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,255 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,208 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,464 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,150 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,820 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,332 |
| Widest Countries East to West | 0 | - | 4.93 | 119,256 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,794 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,878 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,591 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,316 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,721 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,057 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,419 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,021 |
| Countries with Double Letters | 0 | - | 4.96 | 68,070 |
| Countries that End in N | 0 | - | 4.93 | 132,426 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,416 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,779 |
| Countries with W | 0 | - | 4.97 | 122,536 |
| Countries with Z | 0 | - | 4.98 | 244,134 |
| Countries with Letters Missing | 0 | - | 4.97 | 155,387 |
| Countries That End in U | 0 | - | 4.95 | 107,433 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,217 |
| Countries that End in O | 0 | - | 4.92 | 146,822 |
| Countries that End in R | 0 | - | 4.86 | 96,401 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,174 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,091 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,630 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,126 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,180 |
| Countries That End in Y | 0 | - | 4.90 | 161,580 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,839 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,629 |
| Countries that End in I | 0 | - | 4.92 | 114,445 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,390 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,196 |
| Countries That End in NIA | 0 | - | 4.93 | 100,753 |
| Countries That End in BIA | 0 | - | 4.91 | 125,965 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,125 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,629 |
| Countries That End in RIA | 0 | - | 4.90 | 100,873 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,343 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,443 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,522 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,404 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,214 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,136 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,611 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,754 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,575 |
| Countries that End in L | 0 | - | 4.95 | 134,186 |
| "Land" Countries | 0 | - | 4.98 | 288,997 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,658 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,163 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,199 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,117 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,519 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,637 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 165,825 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,344 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,614 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,690 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,768 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,830 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,007 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,242 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,967 |
| Places in their Native Language #1 | 0 | - | 4.86 | 210,258 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,847 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,309,821 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,016 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,058,988 |
| One Border Countries | 0 | - | 4.98 | 409,301 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,388,092 |
| French-Speaking Countries Quiz | 0 | - | 4.76 | 212,697 |
| Countries With the Most Italian Speakers | 0 | - | 4.51 | 50,642 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,725 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 65,999 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,797 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,889 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,876 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 69,047 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,493 |
| Countries by National Anthem | 0 | - | 4.95 | 61,808 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,152 |
| EU Countries Quiz | 0 | - | 4.99 | 227,604 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,359 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,566 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,660 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 225,648 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,203 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,807 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,118 |
