| Landlocked Countries Quiz | 0 | - | 4.99 | 322,421 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,825,913 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 196,293 |
| Members of the Arab League | 0 | - | 4.85 | 61,375 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,501 |
| Himalayan Countries | 0 | - | 4.94 | 104,389 |
| Andean Countries | 0 | - | 4.91 | 57,852 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 58,773 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,157 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,492 |
| Coffee Producing Countries | 0 | - | 4.81 | 53,940 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,185 |
| Danube Countries | 0 | - | 4.97 | 56,572 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,601 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,782 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,983 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,213 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,985 |
| European Landlocked Countries | 0 | - | 4.99 | 115,044 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,199 |
| Countries with the Most Species | 0 | - | 4.99 | 89,200 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,244 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,631 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,965 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,155 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,339 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,633 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,045 |
| Countries in the Alps | 0 | - | 4.83 | 102,460 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,153 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 86,783 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,477 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,125 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,814 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,424 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,492 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,064 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,247 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,543 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,287 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,514 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,603 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,350 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,847 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,344 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,671 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,260 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,294 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 195,464 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,535 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,200 |
| Largest Countries By Category | 0 | - | 4.96 | 144,650 |
| Countries by Countries | 0 | - | 4.96 | 54,521 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,059,743 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,627 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,984 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 340,342 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 354,641 |
| Island Countries Quiz | 0 | - | 4.99 | 659,517 |
| Biggest Countries by Area | 0 | - | 5.00 | 931,308 |
| Northernmost Countries | 0 | - | 4.99 | 326,728 |
| Countries of South America | 0 | - | 5.00 | 791,113 |
| Countries of Oceania | 0 | - | 5.00 | 890,933 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,142,104 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,567,634 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,498 |
| Countries with Megacities | 0 | - | 4.99 | 196,668 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,083 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,674 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 94,986 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,635 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,320 |
| Countries by Official Language | 0 | - | 4.95 | 154,709 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 248,459 |
| Countries in their Native Language | 0 | - | 4.98 | 177,828 |
| Independence from Whom | 0 | - | 4.99 | 185,179 |
| Subdivisions by Country | 0 | - | 4.82 | 46,384 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,179 |
| Megadiverse Countries | 0 | - | 4.96 | 125,200 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 90,898 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,570 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,318 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,376 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,055 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,658 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,984 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,957 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,286 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,627 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,503 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,906 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,911 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,444 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,167 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 81,779 |
| World Map Quiz | 0 | - | 4.90 | 49,110 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 81,327 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,423 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,735 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,816 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,166 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,190 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,446 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,126 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,794 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,306 |
| Widest Countries East to West | 0 | - | 4.93 | 119,225 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,790 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 158,846 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,585 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 85,292 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 118,698 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,038 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,411 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,018 |
| Countries with Double Letters | 0 | - | 4.96 | 68,018 |
| Countries that End in N | 0 | - | 4.93 | 132,375 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,344 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 186,741 |
| Countries with W | 0 | - | 4.97 | 122,496 |
| Countries with Z | 0 | - | 4.98 | 244,066 |
| Countries with Letters Missing | 0 | - | 4.97 | 155,355 |
| Countries That End in U | 0 | - | 4.95 | 107,414 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,171 |
| Countries that End in O | 0 | - | 4.92 | 146,810 |
| Countries that End in R | 0 | - | 4.86 | 96,385 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,160 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,041 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,591 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,097 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,140 |
| Countries That End in Y | 0 | - | 4.90 | 161,569 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 160,787 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,586 |
| Countries that End in I | 0 | - | 4.92 | 114,427 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,344 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,170 |
| Countries That End in NIA | 0 | - | 4.93 | 100,735 |
| Countries That End in BIA | 0 | - | 4.91 | 125,937 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,082 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,603 |
| Countries That End in RIA | 0 | - | 4.90 | 100,846 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,314 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,355 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,493 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,363 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,185 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,115 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,577 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,736 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,546 |
| Countries that End in L | 0 | - | 4.95 | 134,154 |
| "Land" Countries | 0 | - | 4.98 | 288,953 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,619 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,162 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,179 |
| City to Country Quiz #3 | 0 | - | 4.87 | 100,099 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,495 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,576 |
| Five Poorest Countries by Continent | 0 | - | 4.95 | 165,701 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,316 |
| Five Smallest Countries by Continent | 0 | - | 4.97 | 132,558 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,618 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,734 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,812 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,995 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,218 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,950 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,309,464 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 348,948 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,057,883 |
| One Border Countries | 0 | - | 4.98 | 409,169 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,699 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,386,706 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 65,966 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 244,733 |
| Most Populous Countries with Exceptions | 0 | - | 4.97 | 108,854 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,846 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 68,838 |
| Countries by National Anthem | 0 | - | 4.95 | 61,803 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,064 |
| EU Countries Quiz | 0 | - | 4.99 | 227,524 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,334 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,553 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,603 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 225,593 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,158 |
| German-Speaking Countries | 0 | - | 4.88 | 117,433 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,778 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,097 |
| Solve the Secret Country #1 | 0 | - | 4.96 | 129,599 |
| Top Five Countries by Religion | 0 | - | 4.90 | 141,677 |
| Solve the Secret Country #2 | 0 | - | 4.91 | 87,805 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,503 |
| Olympic Host Countries | 0 | - | 4.98 | 161,599 |
| UNESCO World Heritage Countries | 0 | - | 4.98 | 98,698 |
| Anagram Chain - Countries | 0 | - | 4.98 | 96,463 |
| 10 Easternmost Countries in Europe | 0 | - | 4.85 | 91,909 |
| Countries with the Most Elite Universities | 0 | - | 4.95 | 123,880 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 232,609 |
