| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,668 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,802 |
| Landlocked Countries | 0 | - | 4.99 | 421,039 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,449 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,504,260 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,249 |
| Top Rice-Producing Countries | 0 | - | 4.95 | 98,844 |
| Top Chocolate Growing Countries | 0 | - | 4.93 | 61,819 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,001 |
| Himalayan Countries | 0 | - | 4.95 | 138,309 |
| Andean Countries | 0 | - | 4.93 | 84,379 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,598 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,514 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,228 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,631 |
| Danube Countries | 0 | - | 4.97 | 71,903 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,881 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,302 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,095 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,565 |
| European Landlocked Countries | 0 | - | 4.99 | 147,033 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,462 |
| Countries with the Most Species | 0 | - | 4.99 | 103,151 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,616 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,534 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,675 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,469 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,152 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,559 |
| Countries in the Alps | 0 | - | 4.87 | 118,041 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,336 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,835 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,579 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,506 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,381 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,874 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,539 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,401 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,112 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,747 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,587 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,447 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,118 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,385 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,419 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,664 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,216 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,726 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,888 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,466 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,822 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,143 |
| Largest Countries By Category | 0 | - | 4.97 | 158,018 |
| Countries by Countries | 0 | - | 4.96 | 63,084 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,541 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,237 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,529 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,566 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,431 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,741 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,233 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,623 |
| Island Countries | 0 | - | 4.99 | 710,664 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,596 |
| Northernmost Countries | 0 | - | 4.99 | 361,518 |
| Countries of South America | 0 | - | 5.00 | 925,856 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,081 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,811 |
| "Land" Countries | 0 | - | 4.98 | 337,002 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,773 |
| Top 10 Countries with the Most Volcanoes | 0 | - | 4.53 | 77,455 |
| Top 10 Countries with the Most Time Zones | 0 | - | 4.68 | 155,574 |
| Top 10 Most Protestant European Countries | 0 | - | 4.49 | 36,646 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,152 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,629 |
| Countries with Megacities | 0 | - | 4.99 | 263,878 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,480 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,330 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,754 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,381 |
| Countries by Official Language | 0 | - | 4.95 | 195,046 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,115 |
| Countries in their Native Language | 0 | - | 4.99 | 198,574 |
| Independence from Whom | 0 | - | 4.99 | 211,859 |
| Subdivisions by Country | 0 | - | 4.86 | 50,385 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,552 |
| Megadiverse Countries | 0 | - | 4.96 | 134,928 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,912 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,289 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,869 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,075 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,990 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,531 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,327 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,972 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,593 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,052 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,467 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,819 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,129 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,907 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,293 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,438 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,889 |
| World Map Quiz | 0 | - | 4.81 | 64,954 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 156,722 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,253 |
| Countries by Founding Story | 0 | - | 4.95 | 77,282 |
| Countries by Road Signs | 0 | - | 4.98 | 53,886 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,892 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,160 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,882 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,940 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,798 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,920 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,215 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,388 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,499 |
| Widest Countries East to West | 0 | - | 4.92 | 129,561 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,428 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,260 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,086 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,691 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,474 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,760 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,780 |
| Countries with Double Letters | 0 | - | 4.96 | 95,941 |
| Countries that End in N | 0 | - | 4.95 | 170,851 |
| Countries with Five Letters | 0 | - | 4.96 | 281,964 |
| Countries with Six Letters | 0 | - | 4.94 | 213,267 |
| Countries with W | 0 | - | 4.97 | 160,119 |
| Countries with Z | 0 | - | 4.98 | 291,137 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,477 |
| Countries That End in U | 0 | - | 4.95 | 120,731 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,242 |
| Countries that End in O | 0 | - | 4.92 | 159,430 |
| Countries that End in R | 0 | - | 4.87 | 118,897 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,666 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,847 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,540 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,376 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,272 |
| Countries That End in Y | 0 | - | 4.91 | 185,804 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,731 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,721 |
| Countries that End in I | 0 | - | 4.94 | 135,028 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,902 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,749 |
| Countries That End in NIA | 0 | - | 4.92 | 109,697 |
| Countries That End in BIA | 0 | - | 4.93 | 149,092 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,976 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,306 |
| Countries That End in RIA | 0 | - | 4.93 | 126,730 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,903 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,301 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,532 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,938 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,507 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,503 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,920 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,412 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,408 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,356 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,148 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,838 |
| Countries that End in L | 0 | - | 4.94 | 156,744 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,159 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,237 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,950 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,885 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,914 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,552 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,508 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,889 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,408 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,268 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,784 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,048 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,446,620 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,559 |
| One Border Countries | 0 | - | 4.98 | 468,960 |
| Countries that Eat the Most Fish | 0 | - | 4.26 | 71,871 |
| Top 10 Countries with the Most Fishermen | 0 | - | 4.30 | 45,352 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,830,945 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,626,763 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 86,779 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,965 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 121,988 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.92 | 93,604 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,126 |
| Countries by National Anthem | 0 | - | 4.93 | 71,258 |
| NATO Countries | 0 | - | 4.98 | 280,783 |
| EU Countries Quiz | 0 | - | 4.99 | 274,667 |
| Recently Independent Countries | 0 | - | 4.98 | 159,350 |
| French-Speaking Countries | 0 | - | 4.85 | 270,643 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 83,858 |
| Countries That Use the Euro | 0 | - | 4.95 | 105,211 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,715 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,642 |
