| Island Countries Quiz | 0 | - | 4.99 | 659,055 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,503 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,845 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,906 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,122 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.87 | 134,151 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,789,637 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 321,802 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,055,649 |
| Members of the Arab League | 0 | - | 4.85 | 60,978 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,284 |
| Himalayan Countries | 0 | - | 4.94 | 104,152 |
| Andean Countries | 0 | - | 4.91 | 57,683 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,622 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,041 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,410 |
| Coffee Producing Countries | 0 | - | 4.81 | 53,873 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,124 |
| Danube Countries | 0 | - | 4.97 | 56,542 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,573 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,760 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,911 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,147 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,902 |
| European Landlocked Countries | 0 | - | 4.99 | 115,014 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,141 |
| Countries with the Most Species | 0 | - | 4.99 | 89,180 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,194 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,608 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,942 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,112 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,317 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,617 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,005 |
| Countries in the Alps | 0 | - | 4.83 | 102,389 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,095 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,683 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,431 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,085 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,762 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,378 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,421 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,023 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,223 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,509 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,249 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,492 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,587 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,311 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,808 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,309 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,545 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,225 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,258 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,250 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,412 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,174 |
| Largest Countries By Category | 0 | - | 4.96 | 144,558 |
| Countries by Countries | 0 | - | 4.95 | 54,469 |
| Country Flags with the Most White | 0 | - | 4.90 | 123,983 |
| Straight Shot to Antarctica | 0 | - | 4.90 | 37,208 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,595 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 44,614 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,911 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,126 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 354,316 |
| Biggest Countries by Area | 0 | - | 5.00 | 930,608 |
| Northernmost Countries | 0 | - | 4.99 | 326,575 |
| Countries of South America | 0 | - | 5.00 | 790,360 |
| Countries of Oceania | 0 | - | 5.00 | 890,021 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,138,595 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,565,962 |
| Countries Closest to Africa | 0 | - | 4.95 | 144,989 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,338 |
| Countries with Megacities | 0 | - | 4.99 | 196,433 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 170,881 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,558 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,815 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 63,514 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,087 |
| Countries by Official Language | 0 | - | 4.95 | 154,594 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 248,281 |
| Countries in their Native Language | 0 | - | 4.98 | 177,719 |
| Independence from Whom | 0 | - | 4.99 | 185,010 |
| Subdivisions by Country | 0 | - | 4.82 | 46,365 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,108 |
| Megadiverse Countries | 0 | - | 4.96 | 125,146 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,758 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,297 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,017 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,584 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,937 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,275 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,550 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,473 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,873 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,894 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,400 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 81,610 |
| World Map Quiz | 0 | - | 4.90 | 49,000 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 112,583 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 81,276 |
| Countries by Founding Story | 0 | - | 4.92 | 54,714 |
| Countries by Road Signs | 0 | - | 4.98 | 45,104 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,310 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,681 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,731 |
| Countries With the Most Languages | 0 | - | 4.91 | 173,000 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,143 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,390 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,055 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,727 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,255 |
| Widest Countries East to West | 0 | - | 4.93 | 119,171 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,779 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,771 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,553 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,224 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,631 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,984 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,395 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,000 |
| Countries with Double Letters | 0 | - | 4.96 | 67,901 |
| Countries that End in N | 0 | - | 4.93 | 132,297 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,225 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,642 |
| Countries with W | 0 | - | 4.97 | 122,431 |
| Countries with Z | 0 | - | 4.98 | 243,935 |
| Countries with Letters Missing | 0 | - | 4.97 | 155,289 |
| Countries That End in U | 0 | - | 4.94 | 107,382 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,095 |
| Countries that End in O | 0 | - | 4.92 | 146,780 |
| Countries that End in R | 0 | - | 4.86 | 96,352 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,135 |
| Countries Ending in "IA" | 0 | - | 4.99 | 170,907 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,475 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,033 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,058 |
| Countries That End in Y | 0 | - | 4.90 | 161,540 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,398 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,511 |
| Countries that End in I | 0 | - | 4.92 | 114,404 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,220 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,129 |
| Countries That End in NIA | 0 | - | 4.93 | 100,689 |
| Countries That End in BIA | 0 | - | 4.91 | 125,863 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,002 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,549 |
| Countries That End in RIA | 0 | - | 4.90 | 100,816 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,256 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,182 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,416 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,281 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,098 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,044 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,506 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,688 |
| Countries with the Word "And" | 0 | - | 4.98 | 83,200 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,472 |
| Countries that End in L | 0 | - | 4.95 | 134,097 |
| "Land" Countries | 0 | - | 4.98 | 288,838 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,531 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,157 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,135 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,064 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,452 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,431 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 165,426 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,263 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,448 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,045 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,639 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,774 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,956 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,182 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,912 |
| Islands by Shape #2 | 0 | - | 4.87 | 44,907 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,308,676 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 348,771 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,055,493 |
| One Border Countries | 0 | - | 4.98 | 408,929 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,383,767 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 68,060 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,628 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 65,905 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,602 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,772 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,802 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 67,997 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 50,364 |
| Nearest Capital City #1 | 0 | - | 4.82 | 52,379 |
| World Capitals by Proximity | 0 | - | 4.88 | 298,100 |
| World Capitals Deepest in a Country's Territory | 0 | - | 4.96 | 48,751 |
| Countries by National Anthem | 0 | - | 4.95 | 61,786 |
| NATO Countries Quiz | 0 | - | 4.98 | 224,935 |
| EU Countries Quiz | 0 | - | 4.99 | 227,387 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,267 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,524 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,499 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 225,473 |
