| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,298 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,928 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,426 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,620 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,103 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,734 |
| Flags that are Red & White Only | 0 | - | 4.97 | 158,939 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,503 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,816 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,538 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,554 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,294 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,661 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,734 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,526 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,216 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,762 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,231 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,639 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,342 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,650 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,704 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,920 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,340 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,263 |
| World Coats of Arms | 0 | - | 4.99 | 63,818 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,012 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,592 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,741 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,522 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,684 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,339 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,964 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,973 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,886,819 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,025 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,571 |
| Landlocked Countries | 0 | - | 4.99 | 413,235 |
| Merged Countries #2 | 0 | - | 4.96 | 98,432 |
| Merged Countries #6 | 0 | - | 4.91 | 72,676 |
| Merged Countries #7 | 0 | - | 4.92 | 81,919 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,230 |
| Pixelated World Map | 0 | - | 5.00 | 142,366 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,924 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,642 |
| Every Country Shape | 0 | - | 5.00 | 458,456 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,123 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,537 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,141 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Flags of North and South America | 0 | - | 4.99 | 366,559 |
| Former Flags | 0 | - | 4.97 | 106,605 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,411 |
| Himalayan Countries | 0 | - | 4.95 | 135,193 |
| Andean Countries | 0 | - | 4.94 | 82,747 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,162 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,099 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,827 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,532 |
| Danube Countries | 0 | - | 4.97 | 71,040 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,704 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,497 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,384 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,306 |
| European Landlocked Countries | 0 | - | 4.99 | 145,711 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,128 |
| Countries with the Most Species | 0 | - | 4.99 | 95,221 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,280 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,190 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,353 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,935 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,547 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,912 |
| Countries in the Alps | 0 | - | 4.87 | 116,760 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,521 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,170 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,979 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,382 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,107 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,964 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,519 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,722 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,007 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,015 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,180 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,018 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,407 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,707 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,717 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,979 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,602 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,230 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,729 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,049 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,509 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,571 |
| Largest Countries By Category | 0 | - | 4.97 | 156,685 |
| Countries by Countries | 0 | - | 4.96 | 62,217 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,315 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,950 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,313 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,721 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,715 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,424 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,993 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,488 |
| Island Countries | 0 | - | 4.99 | 707,443 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,010 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,658 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,793 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,663 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,305 |
| Similar Flags #1 | 0 | - | 4.74 | 129,038 |
| Similar Flags #2 | 0 | - | 4.74 | 136,307 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,204 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,949 |
| Northernmost Countries | 0 | - | 4.99 | 357,502 |
| Countries of South America | 0 | - | 5.00 | 914,063 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,522 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,849 |
| "Land" Countries | 0 | - | 4.98 | 333,533 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,331 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,218 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,914 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,225 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 77,984 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,184 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,103 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 161,366 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,270 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,273 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,607 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,198 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,249 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 79,986 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,519 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 84,994 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 94,572 |
| All Country Flags of the World | 0 | - | 5.00 | 3,598,290 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 170,978 |
| Countries with Megacities | 0 | - | 4.99 | 246,478 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 196,893 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,787 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,359 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,744 |
| Countries by Official Language | 0 | - | 4.95 | 192,691 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,008 |
| Countries in their Native Language | 0 | - | 4.99 | 196,546 |
| Independence from Whom | 0 | - | 4.99 | 209,582 |
| Subdivisions by Country | 0 | - | 4.86 | 50,046 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,665 |
| Megadiverse Countries | 0 | - | 4.97 | 133,860 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,725 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,899 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,403 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,848 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,595 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,966 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,792 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,113 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,200 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,731 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,487 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,392 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,468 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,483 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,643 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,000 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,455 |
| World Map Quiz | 0 | - | 4.81 | 63,436 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,455 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,538 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,260 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,528 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,488 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 72,762 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,280 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 54,575 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.99 | 27,867 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,254 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,931 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,897 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,618 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,817 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,023 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,229 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,915 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,299 |
| Widest Countries East to West | 0 | - | 4.92 | 128,562 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,209 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,155 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,543 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,661 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,580 |
| Countries with the Most Desert | 0 | - | 4.93 | 126,998 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,045 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,557 |
| Countries with Double Letters | 0 | - | 4.97 | 93,298 |
| Countries that End in N | 0 | - | 4.94 | 156,360 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,589 |
