| Landlocked Countries | 0 | - | 4.99 | 413,056 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,868,338 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,334 |
| Himalayan Countries | 0 | - | 4.95 | 135,123 |
| Andean Countries | 0 | - | 4.94 | 82,705 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,123 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,043 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,798 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,502 |
| Danube Countries | 0 | - | 4.97 | 71,016 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,677 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,476 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,335 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,248 |
| European Landlocked Countries | 0 | - | 4.99 | 145,689 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,087 |
| Countries with the Most Species | 0 | - | 4.99 | 95,207 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,243 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,182 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,341 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,918 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,533 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,890 |
| Countries in the Alps | 0 | - | 4.87 | 116,718 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,499 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,125 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,960 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,347 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,079 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,945 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,495 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,702 |
| Largest Country by Body of Water | 0 | - | 4.95 | 56,690 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,992 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,174 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,006 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,390 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,695 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,696 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,927 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,583 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,212 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,708 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,939 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,431 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,555 |
| Largest Countries By Category | 0 | - | 4.97 | 156,659 |
| Countries by Countries | 0 | - | 4.96 | 62,189 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,264 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,940 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,684 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,338 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,256 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,910 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,408 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,512 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,006 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,626 |
| Flags that are Red & White Only | 0 | - | 4.97 | 156,949 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,418 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,526 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,489 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,504 |
| Pixelated World Map | 0 | - | 5.00 | 142,272 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,206 |
| Country Flags with the Most Blue | 0 | - | 4.87 | 91,608 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,688 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,486 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,168 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,619 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,302 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,611 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,650 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,877 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,327 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,256 |
| World Coats of Arms | 0 | - | 4.99 | 63,800 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,987 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,574 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,694 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,234 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,901 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,100 |
| Island Countries | 0 | - | 4.99 | 707,335 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,113 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,668 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,454 |
| Every Country Shape | 0 | - | 5.00 | 458,219 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,614 |
| Northernmost Countries | 0 | - | 4.99 | 357,366 |
| Countries of South America | 0 | - | 5.00 | 913,735 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,077 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,845,951 |
| "Land" Countries | 0 | - | 4.98 | 333,474 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,609 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,468 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,667 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,915 |
| Countries with Megacities | 0 | - | 4.99 | 246,319 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,841 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,760 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,292 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,292 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,700 |
| Countries by Official Language | 0 | - | 4.95 | 192,628 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,939 |
| Countries in their Native Language | 0 | - | 4.99 | 196,506 |
| Independence from Whom | 0 | - | 4.99 | 209,529 |
| Subdivisions by Country | 0 | - | 4.86 | 50,039 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,613 |
| Megadiverse Countries | 0 | - | 4.97 | 133,841 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,681 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,887 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,118 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,839 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,382 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,844 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,571 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,947 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,620 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,079 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,187 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,723 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,435 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,375 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,449 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,463 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,621 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,991 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,401 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,940 |
| World Map Quiz | 0 | - | 4.81 | 63,399 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,243 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,022 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,961 |
| Country Shapes Quiz #5 | 0 | - | 4.92 | 160,266 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,143 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,220 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,560 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,148 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,210 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 79,955 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,483 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 84,966 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,202 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,906 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,873 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,556 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,790 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,990 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,194 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,894 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,280 |
| Widest Countries East to West | 0 | - | 4.92 | 128,543 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,197 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,116 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,532 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,638 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,536 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,965 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,036 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,555 |
| Countries with Double Letters | 0 | - | 4.97 | 93,255 |
| Countries that End in N | 0 | - | 4.94 | 156,327 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,536 |
| Countries with Six Letters | 0 | - | 4.93 | 210,235 |
| Countries with W | 0 | - | 4.97 | 158,140 |
| Countries with Z | 0 | - | 4.98 | 287,686 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,450 |
| Countries That End in U | 0 | - | 4.95 | 119,465 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,403 |
| Countries that End in O | 0 | - | 4.92 | 158,494 |
| Countries that End in R | 0 | - | 4.86 | 118,221 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,819 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,897 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,201 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,407 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,590 |
| Countries That End in Y | 0 | - | 4.90 | 185,166 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,206 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,578 |
| Countries that End in I | 0 | - | 4.94 | 134,330 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,051 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,153 |
| Countries That End in NIA | 0 | - | 4.92 | 108,944 |
| Countries That End in BIA | 0 | - | 4.92 | 147,633 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 165,999 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,424 |
| Countries That End in RIA | 0 | - | 4.93 | 126,030 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,934 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,034 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,461 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,842 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,282 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,882 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,053 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,579 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,424 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,777 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,718 |
