| Landlocked Countries | 0 | - | 4.99 | 413,720 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,928,836 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,634 |
| Himalayan Countries | 0 | - | 4.95 | 135,404 |
| Andean Countries | 0 | - | 4.94 | 82,838 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,232 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,231 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,921 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,622 |
| Danube Countries | 0 | - | 4.97 | 71,091 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,775 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,547 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,507 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,420 |
| European Landlocked Countries | 0 | - | 4.99 | 145,763 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,226 |
| Countries with the Most Species | 0 | - | 4.99 | 95,246 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,365 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,201 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,372 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,962 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,581 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,954 |
| Countries in the Alps | 0 | - | 4.86 | 116,838 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,581 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,275 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,019 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,430 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,182 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,011 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,589 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,768 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,337 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,071 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,198 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,048 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,459 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,757 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,762 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,093 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,654 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,257 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,779 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,351 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,703 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,608 |
| Largest Countries By Category | 0 | - | 4.97 | 156,778 |
| Countries by Countries | 0 | - | 4.96 | 62,267 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,402 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,963 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,778 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,717,858 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,386 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,972 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,452 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,780 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,241 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,937 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,388 |
| Flags that are Red & White Only | 0 | - | 4.97 | 161,459 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,682 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,253 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,638 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,660 |
| Pixelated World Map | 0 | - | 5.00 | 142,459 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,403 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,753 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,828 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,594 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,678 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,405 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,706 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,771 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,986 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,372 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,282 |
| World Coats of Arms | 0 | - | 4.99 | 63,872 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,049 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,628 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,804 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,160 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,148 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,899 |
| Island Countries | 0 | - | 4.99 | 707,672 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,403 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,294 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,896 |
| Every Country Shape | 0 | - | 5.00 | 459,062 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,595 |
| Northernmost Countries | 0 | - | 4.99 | 357,782 |
| Countries of South America | 0 | - | 5.00 | 914,931 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,698 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,732 |
| "Land" Countries | 0 | - | 4.98 | 333,680 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,594 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,603 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,709 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,315 |
| Countries with Megacities | 0 | - | 4.99 | 247,048 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,186 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,020 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,420 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,610 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,926 |
| Countries by Official Language | 0 | - | 4.95 | 192,797 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,157 |
| Countries in their Native Language | 0 | - | 4.99 | 196,660 |
| Independence from Whom | 0 | - | 4.99 | 209,718 |
| Subdivisions by Country | 0 | - | 4.86 | 50,071 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,778 |
| Megadiverse Countries | 0 | - | 4.97 | 133,909 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,816 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,921 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,372 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,046 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,431 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,864 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,680 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,010 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,039 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,159 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,218 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,750 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,594 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,430 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,502 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,508 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,689 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,032 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,615 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,059 |
| World Map Quiz | 0 | - | 4.81 | 63,508 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,340 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,511 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,310 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,388 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,482 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,354 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,678 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,291 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,319 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,048 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,579 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,055 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,371 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,001 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,962 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,797 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,865 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,071 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,282 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,953 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,340 |
| Widest Countries East to West | 0 | - | 4.92 | 128,612 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,219 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,227 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,572 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,698 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,642 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,054 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,052 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,586 |
| Countries with Double Letters | 0 | - | 4.97 | 93,408 |
| Countries that End in N | 0 | - | 4.94 | 156,896 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,706 |
| Countries with Six Letters | 0 | - | 4.93 | 210,385 |
| Countries with W | 0 | - | 4.97 | 158,240 |
| Countries with Z | 0 | - | 4.98 | 287,900 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,566 |
| Countries That End in U | 0 | - | 4.95 | 119,524 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,581 |
| Countries that End in O | 0 | - | 4.92 | 158,567 |
| Countries that End in R | 0 | - | 4.87 | 118,279 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,861 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,064 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,352 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,504 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,034 |
| Countries That End in Y | 0 | - | 4.90 | 185,213 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,392 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,697 |
| Countries that End in I | 0 | - | 4.94 | 134,422 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,211 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,200 |
| Countries That End in NIA | 0 | - | 4.92 | 109,013 |
| Countries That End in BIA | 0 | - | 4.92 | 147,721 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,078 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,492 |
| Countries That End in RIA | 0 | - | 4.93 | 126,091 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,020 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,211 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,536 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,892 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,367 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,935 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,133 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,656 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,518 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,817 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,827 |
