| Landlocked Countries | 0 | - | 4.99 | 426,579 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,921,445 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,560 |
| Himalayan Countries | 0 | - | 4.93 | 140,495 |
| Andean Countries | 0 | - | 4.94 | 85,625 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,759 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,230 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,322 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,554 |
| Danube Countries | 0 | - | 4.97 | 72,472 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,685 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,903 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,271 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,740 |
| European Landlocked Countries | 0 | - | 4.99 | 147,671 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,403 |
| Countries with the Most Species | 0 | - | 4.99 | 103,607 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,513 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,791 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,914 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,877 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,621 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,075 |
| Countries in the Alps | 0 | - | 4.87 | 118,858 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,796 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,000 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,012 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,093 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,042 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,323 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,472 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,925 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,467 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,241 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,916 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,785 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,616 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,851 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,952 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,998 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,661 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,618 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,754 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,962 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,313 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,555 |
| Largest Countries By Category | 0 | - | 4.97 | 158,954 |
| Countries by Countries | 0 | - | 4.97 | 63,714 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,335 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,426 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,155 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,951 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,939 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,222 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,302 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,461 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,464 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,035 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,265 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,705 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,431 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,777 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,484 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,427 |
| Pixelated World Map | 0 | - | 5.00 | 144,159 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,436 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,357 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,422 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,525 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,118 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,470 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,721 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,794 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,763 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,091 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,663 |
| World Coats of Arms | 0 | - | 4.99 | 65,237 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,814 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,266 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,053 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,980 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,860 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,012 |
| Island Countries | 0 | - | 4.99 | 712,763 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,264 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,957 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,669 |
| Every Country Shape | 0 | - | 5.00 | 471,709 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,395 |
| Northernmost Countries | 0 | - | 4.99 | 364,297 |
| Countries of South America | 0 | - | 5.00 | 933,423 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,423 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,891,027 |
| "Land" Countries | 0 | - | 4.98 | 338,557 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,313 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,247 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,322 |
| Countries with Megacities | 0 | - | 4.99 | 267,476 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,987 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,232 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,028 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,318 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,334 |
| Countries by Official Language | 0 | - | 4.95 | 196,122 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,785 |
| Countries in their Native Language | 0 | - | 4.99 | 199,845 |
| Independence from Whom | 0 | - | 4.99 | 213,227 |
| Subdivisions by Country | 0 | - | 4.87 | 50,642 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,560 |
| Megadiverse Countries | 0 | - | 4.96 | 145,261 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,036 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,556 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,788 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,533 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,749 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,238 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,349 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,891 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,183 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,593 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,122 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,641 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,433 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,465 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,177 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,602 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,915 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,535 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,540 |
| World Map Quiz | 0 | - | 4.81 | 65,825 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,758 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,553 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,928 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,317 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 40,123 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 34,429 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,196 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,181 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 123,023 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,977 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,166 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,677 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,414 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,382 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,159 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,623 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,737 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,485 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,606 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,790 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,728 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,849 |
| Widest Countries East to West | 0 | - | 4.92 | 130,778 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,616 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,309 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,536 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,098 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,040 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,536 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,517 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,908 |
| Countries with Double Letters | 0 | - | 4.96 | 97,235 |
| Countries that End in N | 0 | - | 4.95 | 172,332 |
| Countries with Five Letters | 0 | - | 4.96 | 284,204 |
| Countries with Six Letters | 0 | - | 4.94 | 214,647 |
| Countries with W | 0 | - | 4.96 | 161,059 |
| Countries with Z | 0 | - | 4.98 | 292,629 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,402 |
| Countries That End in U | 0 | - | 4.95 | 121,253 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,208 |
| Countries that End in O | 0 | - | 4.92 | 160,270 |
| Countries that End in R | 0 | - | 4.87 | 119,217 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,979 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,968 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 172,123 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,892 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,851 |
| Countries That End in Y | 0 | - | 4.91 | 186,114 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,566 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,329 |
| Countries that End in I | 0 | - | 4.94 | 135,363 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,712 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,092 |
| Countries That End in NIA | 0 | - | 4.92 | 110,098 |
| Countries That End in BIA | 0 | - | 4.93 | 149,645 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,815 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,813 |
| Countries That End in RIA | 0 | - | 4.93 | 127,092 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,449 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,756 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,265 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,719 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,278 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,844 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,372 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,556 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,973 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,675 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,493 |
