| Landlocked Countries Quiz | 0 | - | 4.99 | 324,371 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,979,640 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.96 | 162,367 |
| Five Most Elevated Countries by Continent | 0 | - | 4.98 | 96,290 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 85,119 |
| Members of the Arab League | 0 | - | 4.85 | 62,222 |
| Sahara Desert Countries | 0 | - | 4.97 | 127,146 |
| Himalayan Countries | 0 | - | 4.94 | 104,979 |
| Andean Countries | 0 | - | 4.91 | 58,234 |
| Countries with the Oldest Median Age | 0 | - | 4.84 | 59,194 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 49,415 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 102,777 |
| Coffee Producing Countries | 0 | - | 4.81 | 54,078 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 53,334 |
| Danube Countries | 0 | - | 4.97 | 56,660 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,704 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,858 |
| Countries with the Best Passports | 0 | - | 4.88 | 71,270 |
| Countries with the Worst Passports | 0 | - | 4.87 | 49,390 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 109,583 |
| European Landlocked Countries | 0 | - | 4.99 | 115,530 |
| Partially Recognized Countries | 0 | - | 4.98 | 89,406 |
| Countries with the Most Species | 0 | - | 4.99 | 89,534 |
| Countries 197 to 205 | 0 | - | 4.88 | 56,386 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,687 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,019 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 48,306 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,431 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,713 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 49,172 |
| Countries in the Alps | 0 | - | 4.84 | 102,698 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 85,342 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 87,225 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,605 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 78,290 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,000 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 87,586 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,655 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,165 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,331 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,676 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 69,454 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,605 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,681 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 95,519 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,995 |
| Countries with the Most Grassland | 0 | - | 4.93 | 69,499 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 98,144 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,357 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 53,408 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 196,488 |
| World Countries - Blind Typing | 0 | - | 5.00 | 72,980 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,298 |
| Largest Countries By Category | 0 | - | 4.96 | 144,959 |
| Countries by Countries | 0 | - | 4.96 | 54,670 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,076,755 |
| Country Flags with the Most White | 0 | - | 4.90 | 124,525 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,722 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 78,254 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 341,303 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 355,802 |
| Island Countries Quiz | 0 | - | 4.99 | 660,932 |
| Biggest Countries by Area | 0 | - | 5.00 | 933,847 |
| Northernmost Countries | 0 | - | 4.99 | 327,361 |
| Countries of South America | 0 | - | 5.00 | 794,231 |
| Countries of Oceania | 0 | - | 5.00 | 894,661 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,156,610 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,574,836 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 126,075 |
| Countries with Megacities | 0 | - | 4.99 | 197,519 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 171,775 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 98,085 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 95,579 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 64,028 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 248,212 |
| Countries by Official Language | 0 | - | 4.96 | 172,744 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 249,444 |
| Countries in their Native Language | 0 | - | 4.98 | 178,421 |
| Independence from Whom | 0 | - | 4.99 | 185,755 |
| Subdivisions by Country | 0 | - | 4.82 | 46,456 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 113,550 |
| Megadiverse Countries | 0 | - | 4.96 | 125,361 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 91,517 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 106,720 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.83 | 47,394 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 131,640 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,168 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 77,971 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 145,154 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,069 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,359 |
| Countries by Sports League Revenue | 0 | - | 4.88 | 43,876 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 101,627 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,034 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,972 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 68,569 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 65,299 |
| Countries of the World in Alphabetical Order | 0 | - | 4.99 | 82,427 |
| World Map Quiz | 0 | - | 4.90 | 49,490 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 113,734 |
| Smallest Countries with at Least One Border | 0 | - | 4.89 | 81,548 |
| Southernmost Countries of the World | 0 | - | 4.99 | 206,947 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 91,030 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 108,140 |
| Countries With the Most Languages | 0 | - | 4.91 | 173,871 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 87,388 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 71,682 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 86,388 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 54,023 |
| Tallest Countries North to South | 0 | - | 4.84 | 110,511 |
| Widest Countries East to West | 0 | - | 4.93 | 119,438 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,837 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 159,098 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,694 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 85,643 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 119,422 |
| Countries with the Most Desert | 0 | - | 4.92 | 105,243 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 66,479 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.82 | 32,073 |
| Countries with Double Letters | 0 | - | 4.96 | 68,548 |
| Countries that End in N | 0 | - | 4.93 | 132,873 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 229,946 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 187,225 |
| Countries with W | 0 | - | 4.97 | 122,833 |
| Countries with Z | 0 | - | 4.98 | 244,616 |
| Countries with Letters Missing | 0 | - | 4.97 | 166,876 |
| Countries That End in U | 0 | - | 4.95 | 107,623 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 89,645 |
| Countries that End in O | 0 | - | 4.92 | 146,998 |
| Countries that End in R | 0 | - | 4.85 | 96,518 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 147,290 |
| Countries Ending in "IA" | 0 | - | 4.99 | 171,536 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 155,882 |
| Countries by Last Two Letters | 0 | - | 4.91 | 116,288 |
| Countries by First and Last Letter #2 | 0 | - | 4.94 | 129,366 |
| Countries That End in Y | 0 | - | 4.90 | 161,676 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 161,135 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 120,863 |
| Countries that End in I | 0 | - | 4.92 | 114,534 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 149,665 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 88,344 |
| Countries That End in NIA | 0 | - | 4.93 | 100,914 |
| Countries That End in BIA | 0 | - | 4.91 | 126,179 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 153,344 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,834 |
| Countries That End in RIA | 0 | - | 4.90 | 101,038 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 100,533 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 201,018 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 119,830 |
| Divided Country Name Puzzle #3 | 0 | - | 4.93 | 110,723 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 77,530 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 92,321 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 96,804 |
| Countries that are Free from U.S.A. | 0 | - | 4.90 | 42,888 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 40,852 |
| Countries that End in L | 0 | - | 4.95 | 134,357 |
| "Land" Countries | 0 | - | 4.98 | 289,347 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 188,980 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.97 | 65,193 |
| City to Country Quiz #1 | 0 | - | 4.94 | 134,352 |
| City to Country Quiz #3 | 0 | - | 4.86 | 100,238 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,675 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 208,069 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 166,573 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 116,552 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 133,178 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 194,038 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 140,963 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,932 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 92,113 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 82,373 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 56,114 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,312,397 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 349,825 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,067,301 |
| One Border Countries | 0 | - | 4.98 | 410,425 |
| Countries with the Highest Elevation with Exceptions | 0 | - | 4.75 | 57,284 |
| Countries With One Word and Three A's | 0 | - | 4.85 | 30,885 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,398,455 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.94 | 66,190 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 245,208 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 109,141 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 90,022 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.94 | 69,963 |
| Countries by National Anthem | 0 | - | 4.95 | 61,859 |
| NATO Countries Quiz | 0 | - | 4.98 | 225,664 |
| EU Countries Quiz | 0 | - | 4.99 | 228,114 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 144,784 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,648 |
| Countries That Use the Euro | 0 | - | 4.92 | 63,260 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 226,066 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 217,568 |
| German-Speaking Countries | 0 | - | 4.88 | 117,587 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,965 |
| Countries with Wild Penguins | 0 | - | 4.93 | 90,241 |
| Solve the Secret Country #1 | 0 | - | 4.95 | 130,310 |
| Top Five Countries by Religion | 0 | - | 4.90 | 142,180 |
| Solve the Secret Country #2 | 0 | - | 4.90 | 88,467 |
| Countries by Hottest Recorded Temperature | 0 | - | 4.91 | 81,665 |
| Olympic Host Countries | 0 | - | 4.98 | 161,959 |
