| Spanish-Speaking Countries | 0 | - | 4.94 | 338,566 |
| Countries by Official Language | 0 | - | 4.95 | 153,501 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 246,739 |
| Countries in their Native Language | 0 | - | 4.98 | 177,004 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 89,971 |
| German-Speaking Countries | 0 | - | 4.87 | 117,157 |
| Countries of the World Quiz | 0 | - | 5.00 | 40,464,287 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 317,514 |
| Countries With the Most Italian Speakers | 0 | - | 4.52 | 50,238 |
| English Speaking Countries | 0 | - | 4.72 | 337,470 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,018,679 |
| Countries on the Equator | 0 | - | 4.82 | 132,526 |
| Members of the Arab League | 0 | - | 4.82 | 59,264 |
| Sahara Desert Countries | 0 | - | 4.97 | 125,136 |
| Himalayan Countries | 0 | - | 4.95 | 102,471 |
| Andean Countries | 0 | - | 4.90 | 56,931 |
| Countries with the Oldest Median Age | 0 | - | 4.85 | 57,774 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 48,573 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 101,889 |
| Coffee Producing Countries | 0 | - | 4.82 | 53,552 |
| 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 | 64,595 |
| Countries with the Best Passports | 0 | - | 4.87 | 70,340 |
| Countries with the Worst Passports | 0 | - | 4.86 | 48,782 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 108,393 |
| European Landlocked Countries | 0 | - | 4.99 | 114,838 |
| Partially Recognized Countries | 0 | - | 4.98 | 88,769 |
| Countries with the Most Species | 0 | - | 4.99 | 89,083 |
| Countries 197 to 205 | 0 | - | 4.88 | 55,831 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 44,438 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 43,813 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 47,762 |
| Countries that Use the Peso | 0 | - | 4.81 | 46,119 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 58,454 |
| Countries with a AAA Credit Rating | 0 | - | 4.89 | 48,690 |
| Countries in the Alps | 0 | - | 4.82 | 101,824 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 84,635 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 85,803 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 71,126 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 77,721 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 93,367 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 86,896 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 89,049 |
| 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 | 54,158 |
| 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 | 36,418 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 94,973 |
| Arctic Ocean Countries | 0 | - | 4.93 | 71,501 |
| Countries with the Most Grassland | 0 | - | 4.93 | 68,975 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 96,613 |
| Countries with the Most Climate Zones | 0 | - | 4.97 | 60,950 |
| Countries that Host the Most Refugees | 0 | - | 4.93 | 52,954 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 192,744 |
| World Countries - Blind Typing | 0 | - | 5.00 | 71,380 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 41,962 |
| Largest Countries By Category | 0 | - | 4.96 | 143,892 |
| Countries by Countries | 0 | - | 4.96 | 54,088 |
| Country Flags with the Most White | 0 | - | 4.90 | 107,664 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 58,379 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 77,338 |
| Top 10 Countries with the Most Spanish Speakers | 0 | - | 4.96 | 117,930 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 351,765 |
| Island Countries Quiz | 0 | - | 4.99 | 638,750 |
| Biggest Countries by Area | 0 | - | 5.00 | 924,785 |
| Northernmost Countries | 0 | - | 4.99 | 325,324 |
| Countries of South America | 0 | - | 5.00 | 783,702 |
| Countries of Oceania | 0 | - | 5.00 | 882,046 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,108,918 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,551,593 |
| Top World Languages | 0 | - | 4.91 | 698,922 |
| 15 Most Populous Countries that Speak a Romance Language | 0 | - | 4.70 | 104,199 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 124,153 |
| Countries with Megacities | 0 | - | 4.99 | 194,786 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 169,476 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 96,867 |
| Countries With More than 200 Million People | 0 | - | 4.93 | 93,700 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 62,710 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 245,078 |
| Independence from Whom | 0 | - | 4.99 | 183,398 |
| Subdivisions by Country | 0 | - | 4.82 | 46,183 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 111,911 |
| Megadiverse Countries | 0 | - | 4.96 | 124,754 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 106,013 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,130 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 130,094 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 48,628 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 76,635 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 144,317 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 76,501 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 40,981 |
| Countries by Sports League Revenue | 0 | - | 4.87 | 42,860 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 100,821 |
| Countries Furthest from the United States | 0 | - | 4.94 | 71,367 |
| 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 | 80,095 |
| World Map Quiz | 0 | - | 4.90 | 48,130 |
| Smallest Countries with at Least One Border | 0 | - | 4.91 | 80,759 |
| Southernmost Countries of the World | 0 | - | 4.99 | 205,337 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 90,110 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.90 | 107,060 |
| Countries With the Most Languages | 0 | - | 4.90 | 171,589 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.92 | 86,563 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.85 | 70,881 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 85,461 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 53,305 |
| Tallest Countries North to South | 0 | - | 4.84 | 109,846 |
| 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 | 157,892 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 92,100 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.96 | 84,790 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 117,652 |
| Countries with the Most Desert | 0 | - | 4.92 | 104,517 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,259 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 31,860 |
| Countries with Double Letters | 0 | - | 4.96 | 66,900 |
| Countries that End in N | 0 | - | 4.94 | 131,365 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 227,835 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 185,637 |
| Countries with W | 0 | - | 4.97 | 121,647 |
| Countries with Z | 0 | - | 4.98 | 242,439 |
| Countries with Letters Missing | 0 | - | 4.97 | 154,605 |
| Countries That End in U | 0 | - | 4.94 | 106,944 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 88,321 |
| Countries that End in O | 0 | - | 4.92 | 146,379 |
| Countries that End in R | 0 | - | 4.86 | 96,118 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 146,868 |
| Countries Ending in "IA" | 0 | - | 4.99 | 169,579 |
| Countries by First and Last Letter #1 | 0 | - | 4.98 | 154,880 |
| Countries by Last Two Letters | 0 | - | 4.90 | 115,584 |
| Countries by First and Last Letter #2 | 0 | - | 4.95 | 128,506 |
| Countries That End in Y | 0 | - | 4.90 | 160,809 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 159,649 |
| 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 | 148,415 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 87,817 |
| Countries That End in NIA | 0 | - | 4.93 | 100,330 |
| Countries That End in BIA | 0 | - | 4.91 | 125,366 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.93 | 152,386 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 109,045 |
| Countries That End in RIA | 0 | - | 4.89 | 100,468 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 99,758 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 198,725 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 118,657 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 109,451 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 4.99 | 76,378 |
| Countries with a Unique Last Letter | 0 | - | 4.91 | 91,548 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 95,926 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 42,389 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 39,797 |
| Countries that End in L | 0 | - | 4.95 | 133,368 |
| "Land" Countries | 0 | - | 4.98 | 287,915 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 187,769 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.96 | 65,073 |
| City to Country Quiz #1 | 0 | - | 4.94 | 133,712 |
| City to Country Quiz #3 | 0 | - | 4.86 | 99,513 |
| 45 European Countries, 45 Cities | 0 | - | 4.94 | 71,098 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 206,236 |
| Five Poorest Countries by Continent | 0 | - | 4.94 | 157,473 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 115,688 |
| 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 | 91,675 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 81,895 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.93 | 55,512 |
| 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 | 1,302,172 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 347,552 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,035,458 |
| One Border Countries | 0 | - | 4.98 | 406,619 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,357,027 |
| French-Speaking Countries Quiz | 0 | - | 4.76 | 211,658 |
| Countries With One Word and Three A's | 0 | - | 4.84 | 30,215 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.95 | 65,367 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 243,442 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 108,241 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 89,491 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.93 | 64,417 |
| Capitals in their Native Languages | 0 | - | 4.95 | 127,127 |
| Countries by National Anthem | 0 | - | 4.94 | 61,632 |
| NATO Countries Quiz | 0 | - | 4.98 | 223,668 |
| EU Countries Quiz | 0 | - | 4.99 | 226,126 |
| Recently Independent Countries Quiz | 0 | - | 4.98 | 143,407 |
| Natural Features of Countries #1 | 0 | - | 4.85 | 77,185 |
| Countries That Use the Euro | 0 | - | 4.91 | 61,540 |
| Countries with the Most Military Troops | 0 | - | 4.94 | 224,306 |
| Countries with Nuclear Weapons | 0 | - | 4.89 | 216,000 |
| Countries with Wild Tigers | 0 | - | 4.95 | 110,316 |
| Countries with Wild Penguins | 0 | - | 4.93 | 89,683 |
