| Countries of the World Quiz | 0 | - | 5.00 | 47,860,059 |
| Countries of Africa | 0 | - | 5.00 | 2,558,819 |
| Landlocked Countries | 0 | - | 4.99 | 425,542 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,027 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,825 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,163 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,244 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,286 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,279 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,839 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,152 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,562 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,274 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,588 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,356 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,299 |
| Pixelated World Map | 0 | - | 5.00 | 144,077 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,306 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,242 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,311 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,110 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,478 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,047 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,395 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,631 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,716 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,668 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,047 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,638 |
| World Coats of Arms | 0 | - | 4.99 | 65,109 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,628 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,422 |
| Every Country Shape | 0 | - | 5.00 | 470,840 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,802,943 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,020 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 145,144 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 60,080 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,909 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,783 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,222 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 44,996 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,128 |
| Himalayan Countries | 0 | - | 4.93 | 140,133 |
| Andean Countries | 0 | - | 4.94 | 85,377 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,522 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,912 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,100 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,376 |
| Danube Countries | 0 | - | 4.97 | 72,349 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,548 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,800 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,047 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,552 |
| European Landlocked Countries | 0 | - | 4.99 | 147,576 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,250 |
| Countries with the Most Species | 0 | - | 4.99 | 103,542 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,367 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,764 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,869 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,818 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,555 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,984 |
| Countries in the Alps | 0 | - | 4.87 | 118,735 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,555 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,804 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,944 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,997 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,916 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,228 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,364 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,825 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,397 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,150 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,848 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,725 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,535 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,761 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,863 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,765 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,586 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,762 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,634 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,571 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,076 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,488 |
| Largest Countries By Category | 0 | - | 4.97 | 158,814 |
| Countries by Countries | 0 | - | 4.96 | 63,616 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,218 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,389 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,080 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,212 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,608 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,559 |
| Island Countries | 0 | - | 4.99 | 712,470 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,441 |
| Northernmost Countries | 0 | - | 4.99 | 363,869 |
| Countries of South America | 0 | - | 5.00 | 932,304 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,928 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,411 |
| "Land" Countries | 0 | - | 4.98 | 338,330 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,963 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.92 | 13,662 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,605 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,377 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,052 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,461 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,356 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,751 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,183 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 39,869 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 34,095 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,122 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,102 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,955 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,910 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,123 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,628 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,362 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 78,716 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,503 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,087 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,217 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,079 |
| Countries with Megacities | 0 | - | 4.99 | 266,972 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,789 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,096 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,102 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,206 |
| Countries by Official Language | 0 | - | 4.95 | 195,952 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,571 |
| Countries in their Native Language | 0 | - | 4.99 | 199,695 |
| Independence from Whom | 0 | - | 4.99 | 213,007 |
| Subdivisions by Country | 0 | - | 4.87 | 50,604 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,403 |
| Megadiverse Countries | 0 | - | 4.96 | 135,264 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,911 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,530 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,600 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,222 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,782 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,832 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,086 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,559 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,977 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,250 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,482 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,361 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,437 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,137 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,566 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,802 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,297 |
| World Map Quiz | 0 | - | 4.81 | 65,674 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 81,173 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,845 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 77,083 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 155,535 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 74,135 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,697 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,533 |
| 20 Random Country Flags | 0 | - | 4.99 | 618,657 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,206 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,047 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,538 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,498 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,410 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,510 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,705 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,678 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,652 |
| Widest Countries East to West | 0 | - | 4.92 | 130,431 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,590 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,234 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,511 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,052 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,952 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,454 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,491 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,887 |
| Countries with Double Letters | 0 | - | 4.96 | 97,023 |
| Countries that End in N | 0 | - | 4.95 | 171,888 |
| Countries with Five Letters | 0 | - | 4.96 | 283,696 |
| Countries with Six Letters | 0 | - | 4.94 | 214,427 |
| Countries with W | 0 | - | 4.96 | 160,905 |
| Countries with Z | 0 | - | 4.98 | 292,390 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,259 |
| Countries That End in U | 0 | - | 4.95 | 121,173 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,068 |
| Countries that End in O | 0 | - | 4.92 | 160,196 |
| Countries that End in R | 0 | - | 4.87 | 119,170 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,921 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,801 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,122 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,807 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,736 |
| Countries That End in Y | 0 | - | 4.91 | 186,080 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,431 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,257 |
| Countries that End in I | 0 | - | 4.94 | 135,305 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,597 |
