| Countries by Satellite Image #1 | 0 | - | 4.88 | 131,678 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 76,706 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 45,000 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 115,099 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 90,506 |
| Flags with the Most Stars | 0 | - | 4.90 | 108,517 |
| Flags that are Red & White Only | 0 | - | 4.97 | 132,506 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 128,061 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 37,679 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 36,639 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 44,547 |
| Country Flags with the Most Red | 0 | - | 4.97 | 93,823 |
| Country Flags with the Most Blue | 0 | - | 4.90 | 81,183 |
| Country Flags with the Most Green | 0 | - | 4.95 | 81,873 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 83,321 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 89,414 |
| Country Flags with the Most Black | 0 | - | 4.94 | 87,817 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 56,171 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 44,610 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 82,902 |
| Countries by Partial Flag Images #4 | 0 | - | 4.90 | 63,779 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 49,502 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 58,910 |
| World Coats of Arms | 0 | - | 4.99 | 56,783 |
| Countries With Blue and White Flags | 0 | - | 4.89 | 82,750 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 35,160 |
| Countries by Partial Flag Images #6 | 0 | - | 4.90 | 28,581 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 27,187 |
| Countries by Picture #1 | 0 | - | 4.51 | 91,132 |
| Countries by Picture #3 | 0 | - | 4.52 | 55,302 |
| Random Flag to Country | 0 | - | 4.99 | 516,724 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,822,433 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 95,181 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 76,343 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 335,131 |
| Merged Countries #2 | 0 | - | 4.96 | 90,849 |
| Merged Countries #4 | 0 | - | 4.86 | 85,855 |
| Merged Countries #6 | 0 | - | 4.90 | 66,338 |
| Merged Countries #7 | 0 | - | 4.94 | 75,530 |
| World Map without 12 Countries | 0 | - | 4.97 | 318,894 |
| Pixelated World Map | 0 | - | 5.00 | 130,739 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,179,802 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 846,500 |
| Country Shape Quiz #2 | 0 | - | 4.97 | 380,573 |
| Every Country Shape | 0 | - | 5.00 | 392,130 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,234,218 |
| Countries by Picture #2 | 0 | - | 4.37 | 65,190 |
| Countries by Picture #5 | 0 | - | 4.27 | 40,396 |
| Countries by Picture #6 | 0 | - | 4.14 | 34,021 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 316,672 |
| Former Flags | 0 | - | 4.97 | 82,969 |
| Members of the Arab League | 0 | - | 4.86 | 66,565 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,722 |
| Himalayan Countries | 0 | - | 4.94 | 108,659 |
| Andean Countries | 0 | - | 4.91 | 60,358 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,533 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,953 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,584 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,907 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,347 |
| Danube Countries | 0 | - | 4.96 | 57,274 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,275 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,338 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,825 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,503 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,155 |
| European Landlocked Countries | 0 | - | 4.99 | 137,282 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,907 |
| Countries with the Most Species | 0 | - | 4.99 | 90,083 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,447 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,059 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,348 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,136 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,928 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,163 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,996 |
| Countries in the Alps | 0 | - | 4.84 | 103,973 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,541 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,748 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,357 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,464 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,985 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,417 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,635 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,828 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,741 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,476 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,242 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,073 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,060 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,653 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,744 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,312 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,782 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 62,015 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,114 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 203,152 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,650 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,886 |
| Largest Countries By Category | 0 | - | 4.97 | 146,558 |
| Countries by Countries | 0 | - | 4.95 | 55,695 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,670 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,258 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,746 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 42,743 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 345,440 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 363,168 |
| Island Countries Quiz | 0 | - | 4.99 | 669,264 |
| Countries by Satellite Image #3 | 0 | - | 4.65 | 66,935 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 65,034 |
| Countries by Satellite Image #4 | 0 | - | 4.66 | 62,946 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 44,253 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 52,188 |
| Similar Flags #1 | 0 | - | 4.75 | 112,743 |
| Similar Flags #2 | 0 | - | 4.78 | 114,969 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 41,709 |
| Countries by Coat of Arms #2 | 0 | - | 4.78 | 32,567 |
| Biggest Countries by Area | 0 | - | 5.00 | 948,638 |
| Northernmost Countries | 0 | - | 4.99 | 331,156 |
| Countries of South America | 0 | - | 5.00 | 811,232 |
| Countries of Oceania | 0 | - | 5.00 | 915,110 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,614,268 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 148,115 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 153,906 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 123,205 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 70,281 |
| Country Shape Quiz #3 | 0 | - | 4.92 | 270,320 |
| Country Shape Quiz #4 | 0 | - | 4.92 | 200,022 |
| Country Shape Quiz #5 | 0 | - | 4.92 | 141,125 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 92,780 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 101,091 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 111,087 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 99,078 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 73,403 |
| Country Shapes in the World Map #7 | 0 | - | 4.98 | 50,866 |
| Country Shapes in the World Map #5 | 0 | - | 4.97 | 77,628 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 129,255 |
| Countries with Megacities | 0 | - | 4.99 | 202,136 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,621 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 100,088 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,426 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 66,024 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 253,427 |
| Countries by Official Language | 0 | - | 4.96 | 175,408 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,779 |
| Countries in their Native Language | 0 | - | 4.98 | 180,781 |
| Independence from Whom | 0 | - | 4.99 | 189,611 |
| Subdivisions by Country | 0 | - | 4.85 | 46,934 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,804 |
| Megadiverse Countries | 0 | - | 4.96 | 126,880 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 94,087 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,654 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,855 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,453 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,952 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,773 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,095 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,766 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,879 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,177 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,320 |
| Countries Furthest from the United States | 0 | - | 4.94 | 73,004 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,548 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,450 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,077 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,848 |
| World Map Quiz | 0 | - | 4.90 | 51,613 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,903 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 70,391 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 67,316 |
| Countries Connected in the World Map #3 | 0 | - | 4.96 | 66,785 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 143,349 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 65,494 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,816 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 49,080 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,937 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,925 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 110,300 |
| Countries With the Most Languages | 0 | - | 4.90 | 178,012 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,754 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,172 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,393 |
| Countries with the Most Domestic Camels | 0 | - | 4.92 | 55,170 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,665 |
| Widest Countries East to West | 0 | - | 4.93 | 120,634 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,140 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,669 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,886 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,465 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,927 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,737 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,566 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,820 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,440 |
| Countries with Double Letters | 0 | - | 4.96 | 72,246 |
| Countries that End in N | 0 | - | 4.94 | 136,532 |
| Countries with Five Letters Quiz | 0 | - | 4.97 | 234,301 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,939 |
| Countries with W | 0 | - | 4.96 | 126,043 |
| Countries with Z | 0 | - | 4.98 | 265,070 |
