| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,841 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 63,261 |
| Landlocked Countries | 0 | - | 4.99 | 426,097 |
| Top 10 Most Densely-Populated Countries in Europe | 0 | - | 4.98 | 112,919 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,895,109 |
| Top 10 European Countries with the Highest Elevation | 0 | - | 4.83 | 91,527 |
| Top Rice-Producing Countries | 0 | - | 4.95 | 99,439 |
| Top Chocolate Growing Countries | 0 | - | 4.93 | 62,106 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,387 |
| Himalayan Countries | 0 | - | 4.93 | 140,340 |
| Andean Countries | 0 | - | 4.94 | 85,520 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,667 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,080 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,239 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,469 |
| Danube Countries | 0 | - | 4.97 | 72,432 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,626 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,861 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,170 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,651 |
| European Landlocked Countries | 0 | - | 4.99 | 147,628 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,339 |
| Countries with the Most Species | 0 | - | 4.99 | 103,581 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,435 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,783 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,856 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,591 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,035 |
| Countries in the Alps | 0 | - | 4.87 | 118,810 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,684 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,914 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,977 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,041 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,985 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,279 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,431 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,441 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,198 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,893 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,574 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,819 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,907 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,898 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,632 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,184 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,707 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,811 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,205 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,528 |
| Largest Countries By Category | 0 | - | 4.97 | 158,895 |
| Countries by Countries | 0 | - | 4.96 | 63,664 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,289 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,410 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,677 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,126 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,763 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,636 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,746 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,807 |
| Island Countries | 0 | - | 4.99 | 712,636 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,990 |
| Northernmost Countries | 0 | - | 4.99 | 364,114 |
| Countries of South America | 0 | - | 5.00 | 932,974 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,734 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,889,996 |
| "Land" Countries | 0 | - | 4.98 | 338,440 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,947 |
| Top 10 Countries with the Most Volcanoes | 0 | - | 4.53 | 77,670 |
| Top 10 Countries with the Most Time Zones | 0 | - | 4.68 | 156,060 |
| Top 10 Most Protestant European Countries | 0 | - | 4.49 | 36,772 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,318 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,221 |
| Countries with Megacities | 0 | - | 4.99 | 267,249 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,908 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,172 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,222 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,284 |
| Countries by Official Language | 0 | - | 4.95 | 196,038 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,682 |
| Countries in their Native Language | 0 | - | 4.99 | 199,771 |
| Independence from Whom | 0 | - | 4.99 | 213,123 |
| Subdivisions by Country | 0 | - | 4.87 | 50,626 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,477 |
| Megadiverse Countries | 0 | - | 4.96 | 135,293 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,976 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,546 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,708 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,232 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,296 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,862 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,139 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,575 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,082 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,262 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,576 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,389 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,450 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,157 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,594 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,887 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,410 |
| World Map Quiz | 0 | - | 4.81 | 65,770 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 159,375 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,729 |
| Countries by Founding Story | 0 | - | 4.95 | 77,821 |
| Countries by Road Signs | 0 | - | 4.98 | 54,367 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,305 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,115 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,588 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,643 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,463 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,566 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,764 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,713 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,770 |
| Widest Countries East to West | 0 | - | 4.92 | 130,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,604 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,277 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,525 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,075 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,002 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,501 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,509 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,897 |
| Countries with Double Letters | 0 | - | 4.96 | 97,126 |
| Countries that End in N | 0 | - | 4.95 | 172,001 |
| Countries with Five Letters | 0 | - | 4.96 | 283,941 |
| Countries with Six Letters | 0 | - | 4.94 | 214,536 |
| Countries with W | 0 | - | 4.96 | 160,993 |
| Countries with Z | 0 | - | 4.98 | 292,514 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,320 |
| Countries That End in U | 0 | - | 4.95 | 121,210 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,145 |
| Countries that End in O | 0 | - | 4.92 | 160,233 |
| Countries that End in R | 0 | - | 4.87 | 119,197 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,956 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,899 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,182 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,850 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,779 |
| Countries That End in Y | 0 | - | 4.91 | 186,099 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,492 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,300 |
| Countries that End in I | 0 | - | 4.94 | 135,334 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,656 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,070 |
| Countries That End in NIA | 0 | - | 4.92 | 110,081 |
| Countries That End in BIA | 0 | - | 4.93 | 149,599 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,568 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,790 |
| Countries That End in RIA | 0 | - | 4.93 | 127,071 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,407 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,642 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,217 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,653 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,208 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,821 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,345 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,544 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,932 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,661 |
| Countries with the Word "And" | 0 | - | 4.99 | 117,755 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,451 |
| Countries that End in L | 0 | - | 4.94 | 157,150 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,111 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,354 |
| City to Country Quiz #1 | 0 | - | 4.97 | 157,543 |
| City to Country Quiz #3 | 0 | - | 4.88 | 120,022 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 79,470 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,480 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,165 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 143,446 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 164,294 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,001 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 153,232 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,250 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,449 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,568 |
| One Border Countries | 0 | - | 4.98 | 472,054 |
| Every Country in its Official/Native Language | 0 | - | 4.98 | 25,700 |
| Countries that Eat the Most Fish | 0 | - | 4.26 | 72,108 |
| Top 10 Countries with the Most Fishermen | 0 | - | 4.30 | 45,472 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,549 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,654,273 |
| Five Most Densely Populated Countries by Continent | 0 | - | 4.96 | 87,345 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,165 |
| Most Populous Countries with Exceptions | 0 | - | 4.98 | 122,694 |
| Five Least Densely Populated Countries by Continent | 0 | - | 4.90 | 94,240 |
| Countries by Population Range - Tile Select | 0 | - | 4.87 | 59,639 |
| Countries by National Anthem | 0 | - | 4.92 | 71,413 |
| NATO Countries | 0 | - | 4.98 | 283,533 |
| EU Countries Quiz | 0 | - | 4.99 | 278,044 |
| Recently Independent Countries | 0 | - | 4.98 | 160,374 |
| French-Speaking Countries | 0 | - | 4.85 | 271,709 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,048 |
| Countries That Use the Euro | 0 | - | 4.95 | 106,861 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,481 |
