| Countries with Double Letters | 0 | - | 4.96 | 81,619 |
| Countries that End in N | 0 | - | 4.93 | 145,529 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 245,389 |
| Countries with Six Letters Quiz | 0 | - | 4.94 | 200,022 |
| Countries with W | 0 | - | 4.97 | 132,919 |
| Countries with Z | 0 | - | 4.98 | 275,290 |
| Countries with Letters Missing | 0 | - | 4.97 | 176,141 |
| Countries That End in U | 0 | - | 4.95 | 113,927 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 99,902 |
| Countries that End in O | 0 | - | 4.91 | 154,134 |
| Countries that End in R | 0 | - | 4.83 | 99,784 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 151,799 |
| Countries Ending in "IA" | 0 | - | 4.99 | 197,795 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 163,127 |
| Countries by Last Two Letters | 0 | - | 4.87 | 121,724 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 135,451 |
| Countries That End in Y | 0 | - | 4.91 | 182,012 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 189,037 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 127,312 |
| Countries that End in I | 0 | - | 4.92 | 117,350 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 158,186 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 92,110 |
| Countries That End in NIA | 0 | - | 4.92 | 105,022 |
| Countries That End in BIA | 0 | - | 4.91 | 142,610 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 161,125 |
| Countries Whose Names Start with Saint | 0 | - | 4.86 | 114,625 |
| Countries That End in RIA | 0 | - | 4.90 | 105,367 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 105,752 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 214,995 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 127,061 |
| Divided Country Name Puzzle #3 | 0 | - | 4.91 | 118,889 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 84,714 |
| Countries With One Word and Three A's | 0 | - | 4.94 | 48,485 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 97,568 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.97 | 119,840 |
| Countries that are Free from U.S.A. | 0 | - | 4.87 | 46,168 |
| Countries with the Word "And" | 0 | - | 4.98 | 89,687 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 47,566 |
| Countries that End in L | 0 | - | 4.94 | 151,659 |
| "Land" Countries | 0 | - | 4.98 | 299,445 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 197,374 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 83,890 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 380,778 |
| Countries of the World Quiz | 0 | - | 5.00 | 44,178,661 |
| Countries with Four Letters | 0 | - | 4.99 | 404,896 |
| Sahara Desert Countries | 0 | - | 4.97 | 144,702 |
| Himalayan Countries | 0 | - | 4.95 | 121,443 |
| Andean Countries | 0 | - | 4.92 | 68,228 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 56,317 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 112,448 |
| Coffee Producing Countries | 0 | - | 4.82 | 59,529 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 58,962 |
| Danube Countries | 0 | - | 4.97 | 60,646 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 96,553 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,687 |
| Countries with the Best Passports | 0 | - | 4.81 | 80,011 |
| Countries with the Worst Passports | 0 | - | 4.92 | 64,031 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 137,452 |
| European Landlocked Countries | 0 | - | 4.99 | 140,815 |
| Partially Recognized Countries | 0 | - | 4.98 | 97,733 |
| Countries with the Most Species | 0 | - | 4.99 | 92,212 |
| Countries 197 to 205 | 0 | - | 4.88 | 63,158 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,616 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,713 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 52,407 |
| Countries that Use the Peso | 0 | - | 4.88 | 56,072 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,817 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 53,461 |
| Countries in the Alps | 0 | - | 4.86 | 110,132 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 90,492 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 97,353 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 75,237 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 83,477 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 110,383 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,760 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,783 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,670 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,854 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,612 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,599 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 51,136 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.89 | 38,991 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,981 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,672 |
| Countries with the Most Grassland | 0 | - | 4.93 | 73,342 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 108,542 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,669 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,581 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 221,101 |
| World Countries - Blind Typing | 0 | - | 5.00 | 94,320 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 44,956 |
| Largest Countries By Category | 0 | - | 4.97 | 151,046 |
| Countries by Countries | 0 | - | 4.96 | 58,277 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,395,265 |
| Country Flags with the Most White | 0 | - | 4.87 | 131,808 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,580 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,261 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,690 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,461,246 |
| Bordering Countries Beginning With the Same Letter | 0 | - | 4.99 | 121,416 |
| Can You Name These 50 Random Countries? | 0 | - | 4.99 | 199,569 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 359,514 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 381,425 |
| Island Countries Quiz | 0 | - | 4.99 | 689,714 |
| Biggest Countries by Area | 0 | - | 5.00 | 987,551 |
| Northernmost Countries | 0 | - | 4.99 | 341,975 |
| Countries of South America | 0 | - | 5.00 | 859,775 |
| Countries of Oceania | 0 | - | 5.00 | 972,162 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,724,568 |
| Countries with J | 0 | - | 4.55 | 178,718 |
| Add A Letter - Make a Country | 0 | - | 4.80 | 71,078 |
| Countries by Consonants | 0 | - | 4.43 | 76,038 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,251,131 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 158,188 |
| Countries with Megacities | 0 | - | 4.99 | 217,320 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 186,259 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 105,997 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 126,266 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 72,917 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 269,181 |
| Countries by Official Language | 0 | - | 4.95 | 183,665 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 281,480 |
| Countries in their Native Language | 0 | - | 4.98 | 188,487 |
| Independence from Whom | 0 | - | 4.99 | 199,460 |
| Subdivisions by Country | 0 | - | 4.86 | 48,463 |
| Who Controlled These Colonies? | 0 | - | 4.90 | 123,458 |
| Megadiverse Countries | 0 | - | 4.96 | 130,334 |
| Countries With the Most English Speakers | 0 | - | 4.89 | 121,763 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 117,356 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 49,279 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 155,183 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 59,372 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 86,212 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 148,888 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 80,245 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 43,376 |
| Countries by Sports League Revenue | 0 | - | 4.93 | 66,908 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 104,781 |
| Countries Furthest from the United States | 0 | - | 4.95 | 85,859 |
| Countries with the Highest HDI | 0 | - | 4.95 | 134,097 |
| Straight Shot to the Arctic Circle | 0 | - | 4.89 | 72,068 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 68,487 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 97,732 |
| World Map Quiz | 0 | - | 4.88 | 57,398 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 134,255 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 86,556 |
| Countries by Founding Story | 0 | - | 4.94 | 72,713 |
| Southernmost Countries of the World | 0 | - | 4.99 | 218,084 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 98,394 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 116,284 |
| Countries With the Most Languages | 0 | - | 4.89 | 188,685 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 92,346 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 88,312 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 93,348 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 58,215 |
| Tallest Countries North to South | 0 | - | 4.85 | 115,423 |
| Widest Countries East to West | 0 | - | 4.92 | 124,550 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 70,152 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 164,945 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 95,373 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 90,134 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 125,211 |
| Countries with the Most Desert | 0 | - | 4.93 | 123,164 |
| Countries by Contribution to UN Budget | 0 | - | 4.85 | 67,968 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 33,497 |
| City to Country Quiz #1 | 0 | - | 4.96 | 149,553 |
| City to Country Quiz #3 | 0 | - | 4.87 | 104,561 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 75,503 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 218,963 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 192,226 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 121,974 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 140,730 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 215,715 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.97 | 146,791 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.88 | 68,677 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.82 | 105,929 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 84,821 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 59,706 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,379,230 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 364,221 |
| One Border Countries | 0 | - | 4.98 | 444,265 |
| Top 15 Most Populous Countries Ending in "IA" | 0 | - | 4.74 | 96,963 |
| Most Similar Country Names | 0 | - | 4.15 | 45,165 |
| Longest Country Name A-Z | 0 | - | 4.36 | 39,876 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,624,381 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 81,683 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 257,008 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 115,710 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 107,528 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 87,926 |
| Countries by Population Range - Tile Select | 0 | - | 4.85 | 54,812 |
| Countries by National Anthem | 0 | - | 4.92 | 69,840 |
| NATO Countries Quiz | 0 | - | 4.98 | 257,260 |
| EU Countries Quiz | 0 | - | 4.99 | 254,066 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 152,044 |
| French-Speaking Countries | 0 | - | 4.85 | 256,983 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 80,467 |
| Countries That Use the Euro | 0 | - | 4.92 | 75,495 |
| Countries with the Most Military Troops | 0 | - | 4.96 | 266,367 |
| Countries with Nuclear Weapons | 0 | - | 4.90 | 248,078 |
