| Landlocked Countries | 0 | - | 4.99 | 413,111 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,874,000 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,359 |
| Himalayan Countries | 0 | - | 4.95 | 135,145 |
| Andean Countries | 0 | - | 4.94 | 82,719 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,140 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,065 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,808 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,508 |
| Danube Countries | 0 | - | 4.97 | 71,024 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,684 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,479 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,345 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,269 |
| European Landlocked Countries | 0 | - | 4.99 | 145,693 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,100 |
| Countries with the Most Species | 0 | - | 4.99 | 95,210 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,251 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,185 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,344 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,924 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,537 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,893 |
| Countries in the Alps | 0 | - | 4.87 | 116,737 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,502 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,146 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,965 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,358 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,092 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,952 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,504 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,708 |
| Largest Country by Body of Water | 0 | - | 4.96 | 56,789 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,002 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,178 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,009 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,395 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,700 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,697 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,944 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,587 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,215 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,715 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,972 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,459 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,561 |
| Largest Countries By Category | 0 | - | 4.97 | 156,666 |
| Countries by Countries | 0 | - | 4.96 | 62,200 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,284 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,943 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,697 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,856 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,262 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,915 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,412 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,543 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,038 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,660 |
| Flags that are Red & White Only | 0 | - | 4.97 | 157,795 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,449 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,619 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,508 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,521 |
| Pixelated World Map | 0 | - | 5.00 | 142,325 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,231 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,621 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,706 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,495 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,180 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,628 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,312 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,626 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,666 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,896 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,332 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,258 |
| World Coats of Arms | 0 | - | 4.99 | 63,804 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,992 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,585 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,708 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,294 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,925 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,219 |
| Island Countries | 0 | - | 4.99 | 707,371 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,158 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,754 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,521 |
| Every Country Shape | 0 | - | 5.00 | 458,301 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,730 |
| Northernmost Countries | 0 | - | 4.99 | 357,407 |
| Countries of South America | 0 | - | 5.00 | 913,831 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,200 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,234 |
| "Land" Countries | 0 | - | 4.98 | 333,490 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,751 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,488 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,673 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,935 |
| Countries with Megacities | 0 | - | 4.99 | 246,362 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,859 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,768 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,304 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,311 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,713 |
| Countries by Official Language | 0 | - | 4.95 | 192,644 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,960 |
| Countries in their Native Language | 0 | - | 4.99 | 196,520 |
| Independence from Whom | 0 | - | 4.99 | 209,544 |
| Subdivisions by Country | 0 | - | 4.86 | 50,041 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,628 |
| Megadiverse Countries | 0 | - | 4.97 | 133,848 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,691 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,893 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,153 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,868 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,385 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,846 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,577 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,956 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,631 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,089 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,191 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,726 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,446 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,381 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,453 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,467 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,633 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 70,996 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,414 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,953 |
| World Map Quiz | 0 | - | 4.81 | 63,407 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,251 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,075 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,012 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 160,627 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,194 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,238 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,582 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,164 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,230 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 79,967 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,499 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 84,976 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,214 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,916 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,881 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,573 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,802 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 92,996 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,206 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,897 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,282 |
| Widest Countries East to West | 0 | - | 4.92 | 128,549 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,199 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,127 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,644 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,548 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,972 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,037 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Countries with Double Letters | 0 | - | 4.97 | 93,268 |
| Countries that End in N | 0 | - | 4.94 | 156,332 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,543 |
| Countries with Six Letters | 0 | - | 4.93 | 210,243 |
| Countries with W | 0 | - | 4.97 | 158,147 |
| Countries with Z | 0 | - | 4.98 | 287,720 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,460 |
| Countries That End in U | 0 | - | 4.95 | 119,470 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,422 |
| Countries that End in O | 0 | - | 4.92 | 158,500 |
| Countries that End in R | 0 | - | 4.87 | 118,231 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,824 |
| Countries Ending in "IA" | 0 | - | 4.99 | 206,909 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,216 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,416 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 140,647 |
| Countries That End in Y | 0 | - | 4.90 | 185,170 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,228 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,585 |
| Countries that End in I | 0 | - | 4.94 | 134,344 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,068 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,160 |
| Countries That End in NIA | 0 | - | 4.92 | 108,948 |
| Countries That End in BIA | 0 | - | 4.92 | 147,642 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,005 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,428 |
| Countries That End in RIA | 0 | - | 4.93 | 126,036 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 109,944 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,050 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,470 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,848 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,287 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,888 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,055 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,583 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,434 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,781 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,729 |
