| Landlocked Countries | 0 | - | 4.99 | 413,408 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,902,688 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,495 |
| Himalayan Countries | 0 | - | 4.95 | 135,278 |
| Andean Countries | 0 | - | 4.94 | 82,788 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,193 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,140 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,857 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,566 |
| Danube Countries | 0 | - | 4.97 | 71,061 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,730 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,516 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,422 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,349 |
| European Landlocked Countries | 0 | - | 4.99 | 145,731 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,169 |
| Countries with the Most Species | 0 | - | 4.99 | 95,234 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,309 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,193 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,358 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,947 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,561 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,935 |
| Countries in the Alps | 0 | - | 4.86 | 116,787 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,535 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,218 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,991 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,403 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,131 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,977 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,550 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,735 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,178 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,032 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,189 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,030 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,429 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,721 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,735 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,016 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,619 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,245 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,749 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,170 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,593 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,589 |
| Largest Countries By Category | 0 | - | 4.97 | 156,718 |
| Countries by Countries | 0 | - | 4.96 | 62,239 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,349 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,957 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,738 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,813 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,333 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,942 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,437 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,678 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,151 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,823 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,329 |
| Flags that are Red & White Only | 0 | - | 4.97 | 160,081 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,581 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,001 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,574 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,592 |
| Pixelated World Map | 0 | - | 5.00 | 142,406 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,344 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,701 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,763 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,552 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,655 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,363 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,673 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,725 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,950 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,345 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,268 |
| World Coats of Arms | 0 | - | 4.99 | 63,839 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,022 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,605 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,762 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,617 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,052 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,730 |
| Island Countries | 0 | - | 4.99 | 707,538 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,294 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,068 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,744 |
| Every Country Shape | 0 | - | 5.00 | 458,730 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,204 |
| Northernmost Countries | 0 | - | 4.99 | 357,617 |
| Countries of South America | 0 | - | 5.00 | 914,362 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,049 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,577 |
| "Land" Countries | 0 | - | 4.98 | 333,589 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,712 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,547 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,693 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,067 |
| Countries with Megacities | 0 | - | 4.99 | 246,660 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,996 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,849 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,363 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,423 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,783 |
| Countries by Official Language | 0 | - | 4.95 | 192,727 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,063 |
| Countries in their Native Language | 0 | - | 4.99 | 196,593 |
| Independence from Whom | 0 | - | 4.99 | 209,629 |
| Subdivisions by Country | 0 | - | 4.86 | 50,058 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,710 |
| Megadiverse Countries | 0 | - | 4.97 | 133,882 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,754 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,910 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,272 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,972 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,413 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,853 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,626 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,986 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,881 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,129 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,208 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,736 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,524 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,404 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,479 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,490 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,652 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,011 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,527 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,011 |
| World Map Quiz | 0 | - | 4.81 | 63,472 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,308 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,301 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,185 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 161,914 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,361 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,306 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,627 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,237 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,275 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,009 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,539 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,018 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,303 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,965 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,923 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,685 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,832 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,038 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,253 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,931 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,322 |
| Widest Countries East to West | 0 | - | 4.92 | 128,591 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,181 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,559 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,676 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,609 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,023 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,048 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,571 |
| Countries with Double Letters | 0 | - | 4.97 | 93,346 |
| Countries that End in N | 0 | - | 4.94 | 156,530 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,635 |
| Countries with Six Letters | 0 | - | 4.93 | 210,308 |
| Countries with W | 0 | - | 4.97 | 158,199 |
| Countries with Z | 0 | - | 4.98 | 287,824 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,518 |
| Countries That End in U | 0 | - | 4.95 | 119,498 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,499 |
| Countries that End in O | 0 | - | 4.92 | 158,534 |
| Countries that End in R | 0 | - | 4.87 | 118,257 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,850 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,976 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,297 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,467 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,982 |
| Countries That End in Y | 0 | - | 4.90 | 185,189 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,335 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,645 |
| Countries that End in I | 0 | - | 4.94 | 134,397 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,144 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,180 |
| Countries That End in NIA | 0 | - | 4.92 | 108,987 |
| Countries That End in BIA | 0 | - | 4.92 | 147,689 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,040 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,468 |
| Countries That End in RIA | 0 | - | 4.93 | 126,063 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,982 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,142 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,498 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,876 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,335 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,916 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,096 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,626 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,479 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,805 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,783 |
