| Landlocked Countries | 0 | - | 4.99 | 424,250 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,765,246 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,524 |
| Himalayan Countries | 0 | - | 4.94 | 139,685 |
| Andean Countries | 0 | - | 4.94 | 85,139 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,318 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,565 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,894 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,176 |
| Danube Countries | 0 | - | 4.97 | 72,250 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,382 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,683 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,805 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,296 |
| European Landlocked Countries | 0 | - | 4.99 | 147,429 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,043 |
| Countries with the Most Species | 0 | - | 4.99 | 103,454 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,175 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,700 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,810 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,725 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,455 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,879 |
| Countries in the Alps | 0 | - | 4.87 | 118,540 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,224 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,558 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,843 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,853 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,776 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,116 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,971 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,708 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,328 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,045 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,780 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,648 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,425 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,666 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,751 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,451 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,500 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,458 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,451 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,106 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,779 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,412 |
| Largest Countries By Category | 0 | - | 4.97 | 158,603 |
| Countries by Countries | 0 | - | 4.96 | 63,483 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,054 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,359 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,958 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,839 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,599 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,047 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,179 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,991 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,056 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,562 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,013 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,329 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,035 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,314 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,202 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,128 |
| Pixelated World Map | 0 | - | 5.00 | 143,916 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,144 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,111 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,174 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,402 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,933 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,288 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,500 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,585 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,533 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,977 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,603 |
| World Coats of Arms | 0 | - | 4.99 | 64,962 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,728 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,169 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,885 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,793 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,237 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,796 |
| Island Countries | 0 | - | 4.99 | 711,974 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,681 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,062 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,027 |
| Every Country Shape | 0 | - | 5.00 | 469,781 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,000 |
| Northernmost Countries | 0 | - | 4.99 | 363,309 |
| Countries of South America | 0 | - | 5.00 | 930,563 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,975 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,884,762 |
| "Land" Countries | 0 | - | 4.98 | 338,001 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,390,152 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,171 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,718 |
| Countries with Megacities | 0 | - | 4.99 | 266,235 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,442 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,856 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,849 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,735 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,971 |
| Countries by Official Language | 0 | - | 4.95 | 195,741 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,252 |
| Countries in their Native Language | 0 | - | 4.99 | 199,509 |
| Independence from Whom | 0 | - | 4.99 | 212,697 |
| Subdivisions by Country | 0 | - | 4.87 | 50,553 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,176 |
| Megadiverse Countries | 0 | - | 4.96 | 135,181 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,732 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,474 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,319 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,137 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,370 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,177 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,415 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,736 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,855 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,495 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,769 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,219 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,149 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,295 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,361 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,080 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,502 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,617 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 111,956 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,343 |
| World Map Quiz | 0 | - | 4.81 | 65,417 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,558 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,903 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,474 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,942 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 39,450 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 33,590 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,953 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,963 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,639 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,769 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,013 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,526 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,234 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,937 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,923 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,411 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,168 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,266 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,386 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,584 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,612 |
| Tallest Countries North to South | 0 | - | 4.86 | 129,911 |
| Widest Countries East to West | 0 | - | 4.92 | 130,290 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,555 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,077 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,455 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,965 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,841 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,345 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,460 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,860 |
| Countries with Double Letters | 0 | - | 4.96 | 96,768 |
| Countries that End in N | 0 | - | 4.95 | 171,654 |
| Countries with Five Letters | 0 | - | 4.96 | 283,344 |
| Countries with Six Letters | 0 | - | 4.94 | 214,111 |
| Countries with W | 0 | - | 4.96 | 160,716 |
| Countries with Z | 0 | - | 4.98 | 292,080 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,069 |
| Countries That End in U | 0 | - | 4.95 | 121,061 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,868 |
| Countries that End in O | 0 | - | 4.92 | 159,708 |
| Countries that End in R | 0 | - | 4.87 | 119,101 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,848 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,547 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,982 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,697 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,624 |
| Countries That End in Y | 0 | - | 4.91 | 186,017 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,256 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,119 |
| Countries that End in I | 0 | - | 4.94 | 135,241 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,436 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,964 |
| Countries That End in NIA | 0 | - | 4.92 | 109,949 |
| Countries That End in BIA | 0 | - | 4.93 | 149,438 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,375 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,648 |
| Countries That End in RIA | 0 | - | 4.93 | 126,967 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 111,257 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,210 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,008 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,440 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,006 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,723 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,223 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,505 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,760 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,571 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,256 |
