| Spanish-Speaking Countries | 0 | - | 4.94 | 341,090 |
| Countries by Official Language | 0 | - | 4.96 | 172,146 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,200 |
| Countries in their Native Language | 0 | - | 4.98 | 178,280 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,371 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 323,739 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,926,643 |
| German-Speaking Countries | 0 | - | 4.88 | 117,542 |
| Members of the Arab League | 0 | - | 4.85 | 61,890 |
| Sahara Desert Countries | 0 | - | 4.97 | 126,899 |
| Himalayan Countries | 0 | - | 4.94 | 104,765 |
| Andean Countries | 0 | - | 4.91 | 58,083 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,033 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,322 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,683 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,023 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,288 |
| Danube Countries | 0 | - | 4.97 | 56,633 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,668 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,835 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,183 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,338 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,510 |
| European Landlocked Countries | 0 | - | 4.99 | 115,502 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,327 |
| Countries with the Most Species | 0 | - | 4.99 | 89,525 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,331 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,676 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,999 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,252 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,404 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,680 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,121 |
| Countries in the Alps | 0 | - | 4.84 | 102,613 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,287 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,065 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,571 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,228 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,936 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,536 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,600 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,128 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,299 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,631 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,402 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,579 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,657 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,462 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,942 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,448 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 97,983 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,322 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,364 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,157 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,826 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,265 |
| Largest Countries By Category | 0 | - | 4.96 | 144,856 |
| Countries by Countries | 0 | - | 4.96 | 54,624 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,071,132 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,399 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,689 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,173 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 118,518 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 355,469 |
| Island Countries Quiz | 0 | - | 4.99 | 660,486 |
| Biggest Countries by Area | 0 | - | 5.00 | 932,961 |
| Northernmost Countries | 0 | - | 4.99 | 327,142 |
| Countries of South America | 0 | - | 5.00 | 793,082 |
| Countries of Oceania | 0 | - | 5.00 | 893,449 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,151,478 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,572,270 |
| Top World Languages | 0 | - | 4.91 | 707,709 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.71 | 104,708 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 125,842 |
| Countries with Megacities | 0 | - | 4.99 | 197,131 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,474 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 97,896 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,313 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 63,860 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 247,837 |
| Independence from Whom | 0 | - | 4.99 | 185,563 |
| Subdivisions by Country | 0 | - | 4.82 | 46,432 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,431 |
| Megadiverse Countries | 0 | - | 4.96 | 125,309 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,666 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,374 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,561 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,134 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,867 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,103 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,027 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,341 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,799 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,590 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,990 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,958 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,530 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,254 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,180 |
| World Map Quiz | 0 | - | 4.90 | 49,373 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,444 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,474 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,756 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,017 |
| Countries With the Most Languages | 0 | - | 4.90 | 173,614 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,313 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,604 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,308 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,955 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,450 |
| Widest Countries East to West | 0 | - | 4.93 | 119,362 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,820 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,003 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,653 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,585 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,083 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,169 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,457 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,050 |
| Countries with Double Letters | 0 | - | 4.96 | 68,417 |
| Countries that End in N | 0 | - | 4.94 | 132,757 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,804 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,085 |
| Countries with W | 0 | - | 4.96 | 122,746 |
| Countries with Z | 0 | - | 4.98 | 244,478 |
| Countries with Letters Missing | 0 | - | 4.97 | 165,626 |
| Countries That End in U | 0 | - | 4.95 | 107,583 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,535 |
| Countries that End in O | 0 | - | 4.92 | 146,951 |
| Countries that End in R | 0 | - | 4.85 | 96,489 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,246 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,386 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,791 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,232 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,301 |
| Countries That End in Y | 0 | - | 4.90 | 161,644 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,005 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,773 |
| Countries that End in I | 0 | - | 4.92 | 114,503 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,562 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,284 |
| Countries That End in NIA | 0 | - | 4.93 | 100,850 |
| Countries That End in BIA | 0 | - | 4.91 | 126,106 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,260 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,773 |
| Countries That End in RIA | 0 | - | 4.90 | 100,977 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,462 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 200,777 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,699 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,590 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,397 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,250 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,742 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,837 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,749 |
| Countries that End in L | 0 | - | 4.95 | 134,290 |
| "Land" Countries | 0 | - | 4.98 | 289,226 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,857 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,179 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,294 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,191 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,623 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 207,912 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,306 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,487 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,078 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 193,911 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,878 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,896 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,073 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,322 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,058 |
| Places in their Native Language #1 | 0 | - | 4.86 | 210,527 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,964 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,311,419 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,619 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,064,151 |
| One Border Countries | 0 | - | 4.98 | 410,161 |
| French-Speaking Countries Quiz | 0 | - | 4.76 | 212,946 |
| Countries With the Most Italian Speakers | 0 | - | 4.51 | 50,751 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,837 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,394,564 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,119 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,051 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,030 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,963 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 69,660 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,553 |
| Countries by National Anthem | 0 | - | 4.95 | 61,837 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,450 |
| EU Countries Quiz | 0 | - | 4.99 | 227,944 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,693 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,614 |
| Countries That Use the Euro | 0 | - | 4.92 | 62,990 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 225,905 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,422 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,906 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,197 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 130,065 |
