| Landlocked Countries | 0 | - | 4.99 | 427,413 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,983,010 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,996 |
| Himalayan Countries | 0 | - | 4.93 | 140,896 |
| Andean Countries | 0 | - | 4.94 | 85,833 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,952 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,532 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,492 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,711 |
| Danube Countries | 0 | - | 4.97 | 72,576 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,826 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,991 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,476 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,950 |
| European Landlocked Countries | 0 | - | 4.99 | 147,793 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,561 |
| Countries with the Most Species | 0 | - | 4.99 | 103,656 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,664 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,820 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,962 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,935 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,689 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,146 |
| Countries in the Alps | 0 | - | 4.87 | 119,006 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 103,049 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,187 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,075 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,191 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,148 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,406 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,616 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 54,011 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,519 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,325 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,964 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,835 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,685 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,939 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,040 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,176 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,748 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,589 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,860 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,406 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,546 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,627 |
| Largest Countries By Category | 0 | - | 4.97 | 159,121 |
| Countries by Countries | 0 | - | 4.97 | 63,820 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,478 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,451 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,248 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,813,648 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 147,091 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,283 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,346 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,667 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,647 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,258 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,370 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,840 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,632 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,945 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,601 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,517 |
| Pixelated World Map | 0 | - | 5.00 | 144,293 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,579 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,473 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,518 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,566 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,205 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,564 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,808 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,894 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,873 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,141 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,688 |
| World Coats of Arms | 0 | - | 4.99 | 65,334 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,868 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,311 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,115 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,778 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,093 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,464 |
| Island Countries | 0 | - | 4.99 | 713,067 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,514 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 910,336 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,881 |
| Every Country Shape | 0 | - | 5.00 | 472,623 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,056,368 |
| Northernmost Countries | 0 | - | 4.99 | 364,682 |
| Countries of South America | 0 | - | 5.00 | 934,523 |
| Countries of Oceania | 0 | - | 5.00 | 1,065,796 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,893,640 |
| "Land" Countries | 0 | - | 4.98 | 339,067 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,397,635 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,288 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,554 |
| Countries with Megacities | 0 | - | 4.99 | 267,968 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 201,204 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,361 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 160,127 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,529 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,469 |
| Countries by Official Language | 0 | - | 4.95 | 196,263 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 298,001 |
| Countries in their Native Language | 0 | - | 4.99 | 199,982 |
| Independence from Whom | 0 | - | 4.99 | 213,452 |
| Subdivisions by Country | 0 | - | 4.87 | 50,674 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,697 |
| Megadiverse Countries | 0 | - | 4.96 | 149,440 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,166 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,588 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,973 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,679 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,822 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,264 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,500 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,933 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,311 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,639 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,180 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,291 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,821 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,502 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,517 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,229 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,651 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,985 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,789 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,624 |
| World Map Quiz | 0 | - | 4.81 | 65,943 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,833 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,721 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 227,089 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,447 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 40,411 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 34,754 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,280 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,248 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 123,119 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 109,049 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,216 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,750 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,467 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,558 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,255 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,726 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,981 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,576 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,689 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,871 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,773 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,969 |
| Widest Countries East to West | 0 | - | 4.92 | 130,875 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,634 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,425 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,571 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,174 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,137 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,628 |
| Countries by Contribution to UN Budget | 0 | - | 4.88 | 77,542 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,928 |
| Countries with Double Letters | 0 | - | 4.96 | 97,687 |
| Countries that End in N | 0 | - | 4.95 | 172,692 |
| Countries with Five Letters | 0 | - | 4.96 | 284,723 |
| Countries with Six Letters | 0 | - | 4.94 | 215,020 |
| Countries with W | 0 | - | 4.96 | 161,359 |
| Countries with Z | 0 | - | 4.98 | 293,089 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,727 |
| Countries That End in U | 0 | - | 4.95 | 121,416 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,476 |
| Countries that End in O | 0 | - | 4.92 | 160,393 |
| Countries that End in R | 0 | - | 4.87 | 119,295 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 156,073 |
| Countries Ending in "IA" | 0 | - | 4.99 | 210,193 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 186,846 |
| Countries by Last Two Letters | 0 | - | 4.85 | 136,252 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 143,894 |
| Countries That End in Y | 0 | - | 4.91 | 186,189 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 199,414 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,451 |
| Countries that End in I | 0 | - | 4.94 | 135,440 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 185,366 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,157 |
| Countries That End in NIA | 0 | - | 4.92 | 110,173 |
| Countries That End in BIA | 0 | - | 4.93 | 149,763 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,959 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,923 |
| Countries That End in RIA | 0 | - | 4.93 | 127,171 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 111,563 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,998 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 134,423 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 126,886 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 92,444 |
| Add A Letter - Make a Country | 0 | - | 4.81 | 74,935 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 53,478 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,616 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 126,079 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,753 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 54,648 |
