| Spanish-Speaking Countries | 0 | - | 4.94 | 338,561 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 117,928 |
| Countries by Official Language | 0 | - | 4.95 | 153,496 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,734 |
| Countries in their Native Language | 0 | - | 4.98 | 176,999 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,970 |
| German-Speaking Countries | 0 | - | 4.87 | 117,154 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,463,200 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,494 |
| English Speaking Countries | 0 | - | 4.72 | 337,464 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,018,493 |
| Countries on the Equator | 0 | - | 4.82 | 132,514 |
| Members of the Arab League | 0 | - | 4.82 | 59,256 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,132 |
| Himalayan Countries | 0 | - | 4.95 | 102,463 |
| Andean Countries | 0 | - | 4.90 | 56,926 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,771 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,573 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,888 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,551 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 52,737 |
| Danube Countries | 0 | - | 4.97 | 56,363 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 91,404 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 64,594 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,337 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,780 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,393 |
| European Landlocked Countries | 0 | - | 4.99 | 114,838 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,766 |
| Countries with the Most Species | 0 | - | 4.99 | 89,083 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,830 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,437 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,812 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,759 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,118 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,454 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,687 |
| Countries in the Alps | 0 | - | 4.82 | 101,822 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,633 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,799 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,126 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,720 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,366 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,878 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,046 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 45,759 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,072 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 54,154 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 68,911 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 48,333 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 36,416 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,973 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,500 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,974 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,611 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,950 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,953 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,737 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,379 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,960 |
| Largest Countries By Category | 0 | - | 4.96 | 143,889 |
| Countries by Countries | 0 | - | 4.96 | 54,084 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,660 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,379 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,334 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,755 |
| Island Countries Quiz | 0 | - | 4.99 | 638,739 |
| Biggest Countries by Area | 0 | - | 5.00 | 924,768 |
| Northernmost Countries | 0 | - | 4.99 | 325,317 |
| Countries of South America | 0 | - | 5.00 | 783,682 |
| Countries of Oceania | 0 | - | 5.00 | 882,006 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,108,810 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,551,530 |
| Top World Languages | 0 | - | 4.91 | 698,908 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.70 | 104,198 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,151 |
| Countries with Megacities | 0 | - | 4.99 | 194,781 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,470 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,867 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,698 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,706 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,072 |
| Independence from Whom | 0 | - | 4.99 | 183,376 |
| Subdivisions by Country | 0 | - | 4.82 | 46,183 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 111,891 |
| Megadiverse Countries | 0 | - | 4.96 | 124,753 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,011 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,128 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,092 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,622 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,620 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,316 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,501 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,980 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,857 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,819 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,366 |
| Countries with the Highest HDI | 0 | - | 4.95 | 130,488 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 67,934 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 64,742 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 80,087 |
| World Map Quiz | 0 | - | 4.90 | 48,126 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,759 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,335 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,108 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,058 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,584 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,563 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,876 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,459 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,304 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,844 |
| Widest Countries East to West | 0 | - | 4.93 | 118,722 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 68,681 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 157,889 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,099 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,788 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,650 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,514 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,259 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,859 |
| Countries with Double Letters | 0 | - | 4.96 | 66,895 |
| Countries that End in N | 0 | - | 4.94 | 131,361 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,832 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,629 |
| Countries with W | 0 | - | 4.97 | 121,644 |
| Countries with Z | 0 | - | 4.98 | 242,431 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,599 |
| Countries That End in U | 0 | - | 4.94 | 106,943 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,317 |
| Countries that End in O | 0 | - | 4.92 | 146,378 |
| Countries that End in R | 0 | - | 4.86 | 96,117 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,867 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,574 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,877 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,583 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,504 |
| Countries That End in Y | 0 | - | 4.90 | 160,808 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,647 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.91 | 119,833 |
| Countries that End in I | 0 | - | 4.92 | 114,158 |
| Countries Based on First Two Letters #2 | 0 | - | 4.98 | 148,412 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,817 |
| Countries That End in NIA | 0 | - | 4.93 | 100,329 |
| Countries That End in BIA | 0 | - | 4.91 | 125,364 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,383 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,045 |
| Countries That End in RIA | 0 | - | 4.89 | 100,467 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,757 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,722 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,657 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,450 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,377 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,548 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,921 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,388 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,796 |
| Countries that End in L | 0 | - | 4.95 | 133,366 |
| "Land" Countries | 0 | - | 4.98 | 287,914 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,766 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,073 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,707 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,488 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,095 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,234 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 157,470 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,687 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 131,628 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.92 | 191,999 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 139,977 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 65,437 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.83 | 91,671 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,895 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,509 |
| Places in their Native Language #1 | 0 | - | 4.87 | 208,949 |
| Places in their Native Language #2 | 0 | - | 4.88 | 112,312 |
| Biggest Countries by Population | 0 | - | 4.99 | 1,302,145 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,547 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,035,387 |
| One Border Countries | 0 | - | 4.98 | 406,612 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,356,926 |
| French-Speaking Countries Quiz | 0 | - | 4.76 | 211,657 |
| Countries With the Most Italian Speakers | 0 | - | 4.52 | 50,238 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,214 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,364 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,440 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,238 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,491 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,415 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,121 |
| Countries by National Anthem | 0 | - | 4.94 | 61,631 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,665 |
| EU Countries Quiz | 0 | - | 4.99 | 226,120 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,384 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,185 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,538 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,303 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 215,997 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,316 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,682 |
