| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,341 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,948 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,440 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,713 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,183 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,848 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,349 |
| Flags that are Red & White Only | 0 | - | 4.97 | 160,555 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,613 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,082 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,596 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,613 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,361 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,719 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,772 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,564 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,271 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,798 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,257 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,664 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,374 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,683 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,737 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,957 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,350 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,273 |
| World Coats of Arms | 0 | - | 4.99 | 63,848 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,028 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,616 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,777 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,570 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,695 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,362 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,975 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,320 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,909,079 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,050 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,612 |
| Landlocked Countries | 0 | - | 4.99 | 413,482 |
| Merged Countries #2 | 0 | - | 4.96 | 98,468 |
| Merged Countries #6 | 0 | - | 4.91 | 72,697 |
| Merged Countries #7 | 0 | - | 4.92 | 81,946 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,328 |
| Pixelated World Map | 0 | - | 5.00 | 142,416 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,122 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,784 |
| Every Country Shape | 0 | - | 5.00 | 458,795 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,715,566 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,557 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,148 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,914 |
| Flags of North and South America | 0 | - | 4.99 | 367,080 |
| Former Flags | 0 | - | 4.97 | 106,669 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,530 |
| Himalayan Countries | 0 | - | 4.95 | 135,311 |
| Andean Countries | 0 | - | 4.94 | 82,802 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,200 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,164 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,875 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,581 |
| Danube Countries | 0 | - | 4.97 | 71,067 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,744 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,525 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,444 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,369 |
| European Landlocked Countries | 0 | - | 4.99 | 145,738 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,182 |
| Countries with the Most Species | 0 | - | 4.99 | 95,235 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,319 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,365 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,950 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,568 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,943 |
| Countries in the Alps | 0 | - | 4.86 | 116,798 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,547 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,237 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,996 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,407 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,139 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,986 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,557 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,741 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,217 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,038 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,193 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,037 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,445 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,728 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,743 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,034 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,627 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,250 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,756 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,217 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,641 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,597 |
| Largest Countries By Category | 0 | - | 4.97 | 156,736 |
| Countries by Countries | 0 | - | 4.96 | 62,247 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,360 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,959 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,329 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,752 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,768 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,729 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,072 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,779 |
| Island Countries | 0 | - | 4.99 | 707,567 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,032 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,675 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,808 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,675 |
| Similar Flags #1 | 0 | - | 4.74 | 129,083 |
| Similar Flags #2 | 0 | - | 4.74 | 136,350 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,221 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,307 |
| Northernmost Countries | 0 | - | 4.99 | 357,663 |
| Countries of South America | 0 | - | 5.00 | 914,487 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,198 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,847,918 |
| "Land" Countries | 0 | - | 4.98 | 333,614 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 158,377 |
| World Map without 12 Countries #2 | 0 | - | 4.97 | 171,296 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 136,987 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,361,957 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,025 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,367 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,219 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 162,049 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 34,386 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 103,319 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 110,637 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 121,250 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 107,282 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,018 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 57,549 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,023 |
| Cartoon Versions of Countries | 0 | - | 4.99 | 94,602 |
| All Country Flags of the World | 0 | - | 5.00 | 3,601,073 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,116 |
| Countries with Megacities | 0 | - | 4.99 | 246,766 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,041 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,921 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,466 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,811 |
| Countries by Official Language | 0 | - | 4.95 | 192,745 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,087 |
| Countries in their Native Language | 0 | - | 4.99 | 196,611 |
| Independence from Whom | 0 | - | 4.99 | 209,652 |
| Subdivisions by Country | 0 | - | 4.86 | 50,062 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,723 |
| Megadiverse Countries | 0 | - | 4.97 | 133,888 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,775 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,915 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,422 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,854 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,636 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,988 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,909 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,133 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,209 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,738 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,543 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,406 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,483 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,493 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,659 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,014 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,546 |
| World Map Quiz | 0 | - | 4.81 | 63,483 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 152,597 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 79,592 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 76,302 |
| Countries Connected in the World Map #3 | 0 | - | 4.97 | 75,567 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 153,525 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 72,794 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,316 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 54,598 |
| Recognize Countries by Tripoint Maps #2 | 0 | - | 4.99 | 28,007 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,326 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,975 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,935 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,711 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,841 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,049 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,265 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,937 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,327 |
| Widest Countries East to West | 0 | - | 4.92 | 128,595 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,215 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,194 |
| 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 | 93,681 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,620 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,029 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,049 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,576 |
| Countries with Double Letters | 0 | - | 4.97 | 93,364 |
| Countries that End in N | 0 | - | 4.94 | 156,676 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,659 |
