| Landlocked Countries | 0 | - | 4.99 | 421,027 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,502,828 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,996 |
| Himalayan Countries | 0 | - | 4.95 | 138,303 |
| Andean Countries | 0 | - | 4.93 | 84,373 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,593 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,509 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,225 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,626 |
| Danube Countries | 0 | - | 4.97 | 71,898 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,875 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,294 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,092 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,562 |
| European Landlocked Countries | 0 | - | 4.99 | 147,029 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,460 |
| Countries with the Most Species | 0 | - | 4.99 | 103,149 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,611 |
| 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 | 59,468 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,150 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,555 |
| Countries in the Alps | 0 | - | 4.87 | 118,040 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,318 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,834 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,579 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,505 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,380 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,873 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,538 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,399 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,111 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,744 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,585 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,444 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,118 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,384 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,418 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,663 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,213 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,726 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,886 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,452 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,819 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,141 |
| Largest Countries By Category | 0 | - | 4.97 | 158,018 |
| Countries by Countries | 0 | - | 4.96 | 63,081 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,539 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,237 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,565 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,771,332 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,966 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,754 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,994 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,965 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,179 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,669 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,434 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,543 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,218 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,382 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,679 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,626 |
| Pixelated World Map | 0 | - | 5.00 | 143,481 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,591 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,636 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,726 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,506 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,164 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,514 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,848 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,055 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,153 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,996 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,803 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,522 |
| World Coats of Arms | 0 | - | 4.99 | 64,601 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,501 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,976 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,526 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,734 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,225 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,609 |
| Island Countries | 0 | - | 4.99 | 710,656 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,621 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 907,512 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,039 |
| Every Country Shape | 0 | - | 5.00 | 466,282 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,575 |
| Northernmost Countries | 0 | - | 4.99 | 361,509 |
| Countries of South America | 0 | - | 5.00 | 925,839 |
| Countries of Oceania | 0 | - | 5.00 | 1,055,065 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,752 |
| "Land" Countries | 0 | - | 4.98 | 336,988 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,381,106 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,994 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,625 |
| Countries with Megacities | 0 | - | 4.99 | 263,868 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,475 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,329 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,355 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,751 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,377 |
| Countries by Official Language | 0 | - | 4.95 | 195,043 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,107 |
| Countries in their Native Language | 0 | - | 4.99 | 198,552 |
| Independence from Whom | 0 | - | 4.99 | 211,857 |
| Subdivisions by Country | 0 | - | 4.86 | 50,385 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,545 |
| Megadiverse Countries | 0 | - | 4.96 | 134,926 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,908 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,287 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,486 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 138,441 |
| 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 | 162,988 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,528 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,327 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,971 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,593 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,051 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,462 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,818 |
| 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 | 75,292 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,438 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,882 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,945 |
| World Map Quiz | 0 | - | 4.81 | 64,950 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,250 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,168 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,741 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,325 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 37,100 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,578 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,605 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,244 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,399 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,732 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,250 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,941 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,886 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,159 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,929 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,796 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,920 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,213 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,388 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,498 |
| Widest Countries East to West | 0 | - | 4.92 | 129,561 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,425 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,253 |
| 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 | 94,686 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,473 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,759 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,332 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,779 |
| Countries with Double Letters | 0 | - | 4.96 | 95,934 |
| Countries that End in N | 0 | - | 4.95 | 170,841 |
| Countries with Five Letters | 0 | - | 4.96 | 281,955 |
| Countries with Six Letters | 0 | - | 4.94 | 213,260 |
| Countries with W | 0 | - | 4.97 | 160,112 |
| Countries with Z | 0 | - | 4.98 | 291,130 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,473 |
| Countries That End in U | 0 | - | 4.95 | 120,728 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,241 |
| 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 | 155,665 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,845 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,537 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,372 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,268 |
| Countries That End in Y | 0 | - | 4.91 | 185,804 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,727 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,721 |
| Countries that End in I | 0 | - | 4.94 | 135,027 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,897 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,748 |
| Countries That End in NIA | 0 | - | 4.92 | 109,697 |
| Countries That End in BIA | 0 | - | 4.93 | 149,090 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,974 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,305 |
| Countries That End in RIA | 0 | - | 4.93 | 126,730 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,897 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,295 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,531 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,934 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,505 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,502 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,916 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,411 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,407 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,355 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,836 |
