| Countries of the World Quiz | 0 | - | 5.00 | 46,916,868 |
| Landlocked Countries | 0 | - | 4.99 | 413,571 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,360 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,190 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,835 |
| Every Country Shape | 0 | - | 5.00 | 458,932 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,362 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,961 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,446 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,737 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,206 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,895 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,362 |
| Flags that are Red & White Only | 0 | - | 4.97 | 161,000 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,638 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,166 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,623 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,629 |
| Pixelated World Map | 0 | - | 5.00 | 142,431 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,375 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,734 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,790 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,573 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,287 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,815 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,263 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,672 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,390 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,695 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,746 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,971 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,356 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,276 |
| World Coats of Arms | 0 | - | 4.99 | 63,855 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,296 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,034 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,621 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,790 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,396 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,571 |
| Himalayan Countries | 0 | - | 4.95 | 135,340 |
| Andean Countries | 0 | - | 4.94 | 82,820 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,207 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,198 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,889 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,598 |
| Danube Countries | 0 | - | 4.97 | 71,077 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,756 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,532 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,466 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,383 |
| European Landlocked Countries | 0 | - | 4.99 | 145,747 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,200 |
| Countries with the Most Species | 0 | - | 4.99 | 95,239 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,334 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,368 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,957 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,572 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,949 |
| Countries in the Alps | 0 | - | 4.86 | 116,817 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,557 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,249 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,000 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,413 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,155 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,997 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,326 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 137,016 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,571 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,744 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,275 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,045 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,194 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,040 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,450 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,737 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,749 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,053 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,636 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,767 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,269 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,666 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,599 |
| Largest Countries By Category | 0 | - | 4.97 | 156,752 |
| Countries by Countries | 0 | - | 4.96 | 62,251 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,036 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,377 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,962 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,579 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,761 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,441 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,262 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,209 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,424 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,336 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,657 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,266 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,296 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,029 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,562 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,033 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,703 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,893 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,101 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,829 |
| Island Countries | 0 | - | 4.99 | 707,602 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,225 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,418 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,404 |
| Northernmost Countries | 0 | - | 4.99 | 357,705 |
| Countries of South America | 0 | - | 5.00 | 914,632 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,361 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,182 |
| "Land" Countries | 0 | - | 4.98 | 333,641 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,604 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,317 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,579 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,539 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 72,811 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 54,604 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.99 | 28,070 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,226,363 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,062 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,626 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,002 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,621 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,188 |
| Countries with Megacities | 0 | - | 4.99 | 246,861 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,096 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,955 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,511 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,845 |
| Countries by Official Language | 0 | - | 4.95 | 192,764 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,123 |
| Countries in their Native Language | 0 | - | 4.99 | 196,631 |
| Independence from Whom | 0 | - | 4.99 | 209,683 |
| Subdivisions by Country | 0 | - | 4.86 | 50,064 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,743 |
| Megadiverse Countries | 0 | - | 4.97 | 133,898 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,793 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,427 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,858 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,654 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,996 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,006 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,141 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,211 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,743 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,562 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,413 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,491 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,502 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,671 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,021 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,577 |
| World Map Quiz | 0 | - | 4.81 | 63,492 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,655 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,324 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,343 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,982 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,945 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,740 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,849 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,057 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,272 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,941 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,333 |
| Widest Countries East to West | 0 | - | 4.92 | 128,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,217 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,204 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,683 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,626 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,037 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,581 |
| Countries with Double Letters | 0 | - | 4.97 | 93,385 |
| Countries that End in N | 0 | - | 4.94 | 156,817 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,679 |
| Countries with Six Letters | 0 | - | 4.93 | 210,358 |
| Countries with W | 0 | - | 4.97 | 158,223 |
| Countries with Z | 0 | - | 4.98 | 287,871 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,546 |
| Countries That End in U | 0 | - | 4.95 | 119,516 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,539 |
| Countries that End in O | 0 | - | 4.92 | 158,551 |
| Countries that End in R | 0 | - | 4.87 | 118,273 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,857 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,014 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,317 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,489 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,007 |
| Countries That End in Y | 0 | - | 4.90 | 185,201 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,367 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,683 |
| Countries that End in I | 0 | - | 4.94 | 134,410 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,189 |
