| Countries of the World Quiz | 0 | - | 5.00 | 47,803,371 |
| Landlocked Countries | 0 | - | 4.99 | 424,781 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,820 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,295 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,161 |
| Every Country Shape | 0 | - | 5.00 | 470,214 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,699 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,100 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,210 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,122 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,142 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,680 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,068 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,428 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,145 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,435 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,277 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,211 |
| Pixelated World Map | 0 | - | 5.00 | 143,984 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,212 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,169 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,243 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,027 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,640 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,063 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,027 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,432 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,983 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,329 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,554 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,631 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,580 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,009 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,613 |
| World Coats of Arms | 0 | - | 4.99 | 65,038 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,798,010 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,754 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,195 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,933 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.98 | 159,909 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,751 |
| Himalayan Countries | 0 | - | 4.93 | 139,862 |
| Andean Countries | 0 | - | 4.94 | 85,227 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,401 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,716 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,967 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,272 |
| Danube Countries | 0 | - | 4.97 | 72,292 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,445 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,735 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,907 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,407 |
| European Landlocked Countries | 0 | - | 4.99 | 147,487 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,132 |
| Countries with the Most Species | 0 | - | 4.99 | 103,505 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,277 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,720 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,830 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,768 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,502 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,926 |
| Countries in the Alps | 0 | - | 4.87 | 118,634 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,397 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,655 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,894 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,921 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,845 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,155 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,426 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 139,240 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,286 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,790 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,359 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,090 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,803 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,674 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,471 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,707 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,798 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,576 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,538 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,614 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,523 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,298 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,908 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,451 |
| Largest Countries By Category | 0 | - | 4.97 | 158,703 |
| Countries by Countries | 0 | - | 4.96 | 63,536 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 79,388 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,141 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,369 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,008 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,014 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,573 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 165,043 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 39,618 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.98 | 33,797 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 105,039 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 112,032 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,890 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,845 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 81,070 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,582 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 86,305 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 95,691 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,186 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,648 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,398 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,118 |
| Island Countries | 0 | - | 4.99 | 712,177 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,391,342 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,882 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,053,588 |
| Northernmost Countries | 0 | - | 4.99 | 363,539 |
| Countries of South America | 0 | - | 5.00 | 931,284 |
| Countries of Oceania | 0 | - | 5.00 | 1,061,634 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,886,164 |
| "Land" Countries | 0 | - | 4.98 | 338,145 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 81,096 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 77,760 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 77,018 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 155,459 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 74,072 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 55,491 |
| World Map Without 20 Random Countries | 0 | - | 4.99 | 8,383,067 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,179 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,514 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,452,697 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,117 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 174,889 |
| Countries with Megacities | 0 | - | 4.99 | 266,580 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,591 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,970 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 138,894 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,073 |
| Countries by Official Language | 0 | - | 4.95 | 195,823 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,384 |
| Countries in their Native Language | 0 | - | 4.99 | 199,605 |
| Independence from Whom | 0 | - | 4.99 | 212,845 |
| Subdivisions by Country | 0 | - | 4.87 | 50,575 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,280 |
| Megadiverse Countries | 0 | - | 4.96 | 135,211 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 132,808 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,493 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,398 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,196 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,478 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,785 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,979 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,522 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,783 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,231 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 78,300 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 108,326 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,390 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,113 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,533 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,651 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 112,104 |
| World Map Quiz | 0 | - | 4.81 | 65,544 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 158,756 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,613 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,050 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,977 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,457 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,313 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,313 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,440 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,640 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,633 |
| Tallest Countries North to South | 0 | - | 4.86 | 130,353 |
| Widest Countries East to West | 0 | - | 4.92 | 130,353 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,576 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,148 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,481 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,997 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,892 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,388 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,470 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,871 |
| Countries with Double Letters | 0 | - | 4.96 | 96,860 |
| Countries that End in N | 0 | - | 4.95 | 171,745 |
| Countries with Five Letters | 0 | - | 4.96 | 283,479 |
| Countries with Six Letters | 0 | - | 4.94 | 214,222 |
| Countries with W | 0 | - | 4.96 | 160,794 |
| Countries with Z | 0 | - | 4.98 | 292,208 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,144 |
| Countries That End in U | 0 | - | 4.95 | 121,100 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 134,956 |
| Countries that End in O | 0 | - | 4.92 | 159,743 |
| Countries that End in R | 0 | - | 4.87 | 119,128 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,885 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,655 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,040 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,746 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,674 |
| Countries That End in Y | 0 | - | 4.91 | 186,042 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,338 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,169 |
| Countries that End in I | 0 | - | 4.94 | 135,262 |
