| Landlocked Countries | 0 | - | 4.99 | 415,243 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,046,369 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,241 |
| Himalayan Countries | 0 | - | 4.95 | 135,933 |
| Andean Countries | 0 | - | 4.94 | 83,149 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,469 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,598 |
| Coffee Producing Countries | 0 | - | 4.82 | 66,169 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,816 |
| Danube Countries | 0 | - | 4.97 | 71,252 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,984 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,699 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,837 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,770 |
| European Landlocked Countries | 0 | - | 4.99 | 145,950 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,497 |
| Countries with the Most Species | 0 | - | 4.99 | 95,333 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,624 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,266 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,437 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,060 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,709 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,065 |
| Countries in the Alps | 0 | - | 4.86 | 117,106 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,741 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,568 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,150 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,571 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,367 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,131 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,781 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,887 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,675 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,200 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,268 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,135 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,606 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,872 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,884 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,438 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,789 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,348 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,009 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,195 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,161 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,717 |
| Largest Countries By Category | 0 | - | 4.97 | 157,006 |
| Countries by Countries | 0 | - | 4.96 | 62,429 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,643 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,019 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,924 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,729,692 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,682 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,079 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,532 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,488 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,874 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,363 |
| Country Flags with the Southern Cross | 0 | - | 4.80 | 61,639 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,141 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,053 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,904 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,908 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,895 |
| Pixelated World Map | 0 | - | 5.00 | 142,679 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,664 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,943 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,021 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,780 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,791 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,861 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,158 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,335 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,467 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,461 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,328 |
| World Coats of Arms | 0 | - | 4.99 | 64,023 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,156 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,706 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,957 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,710 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,740 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,702 |
| Island Countries | 0 | - | 4.99 | 708,267 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,905 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,972 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,341 |
| Every Country Shape | 0 | - | 5.00 | 460,460 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,544 |
| Northernmost Countries | 0 | - | 4.99 | 358,630 |
| Countries of South America | 0 | - | 5.00 | 917,611 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,945 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,853,873 |
| "Land" Countries | 0 | - | 4.98 | 334,074 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,366,693 |
| Countries by Partial Flag Images #7 | 0 | - | 4.90 | 31,215 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,768 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,867 |
| Countries with Megacities | 0 | - | 4.99 | 248,109 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,749 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,329 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,623 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,133 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,274 |
| Countries by Official Language | 0 | - | 4.95 | 193,146 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,655 |
| Countries in their Native Language | 0 | - | 4.99 | 196,981 |
| Independence from Whom | 0 | - | 4.99 | 210,118 |
| Subdivisions by Country | 0 | - | 4.86 | 50,141 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,039 |
| Megadiverse Countries | 0 | - | 4.97 | 134,342 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,137 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,005 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,065 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,341 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,533 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,901 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,865 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,115 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,314 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,423 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,293 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,783 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 75,896 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,509 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,613 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,577 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,791 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,118 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,091 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,265 |
| World Map Quiz | 0 | - | 4.81 | 63,774 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,571 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,884 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,637 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 163,165 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,944 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,544 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,842 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,478 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,478 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,166 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,708 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,201 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,761 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,503 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,226 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,271 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,098 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,301 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,487 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,071 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,520 |
| Widest Countries East to West | 0 | - | 4.92 | 129,015 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,282 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,470 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,644 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,859 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,813 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,217 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 76,543 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,639 |
| Countries with Double Letters | 0 | - | 4.96 | 93,665 |
| Countries that End in N | 0 | - | 4.94 | 157,133 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,018 |
| Countries with Six Letters | 0 | - | 4.93 | 210,678 |
| Countries with W | 0 | - | 4.97 | 158,415 |
| Countries with Z | 0 | - | 4.98 | 288,223 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,749 |
| Countries That End in U | 0 | - | 4.95 | 119,608 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,857 |
| Countries that End in O | 0 | - | 4.92 | 158,651 |
| Countries that End in R | 0 | - | 4.87 | 118,373 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,930 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,396 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,546 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,641 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,194 |
| Countries That End in Y | 0 | - | 4.90 | 185,283 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,611 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,891 |
| Countries that End in I | 0 | - | 4.94 | 134,540 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,456 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,297 |
| Countries That End in NIA | 0 | - | 4.92 | 109,115 |
| Countries That End in BIA | 0 | - | 4.92 | 147,846 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,247 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,632 |
| Countries That End in RIA | 0 | - | 4.93 | 126,197 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,179 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,696 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,680 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,028 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,576 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,025 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,280 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,795 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,675 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,891 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,983 |
