| Countries by Satellite Image #5 | 0 | - | 4.89 | 76,641 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.87 | 44,965 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 114,932 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 90,356 |
| Flags with the Most Stars | 0 | - | 4.90 | 108,319 |
| Flags that are Red & White Only | 0 | - | 4.97 | 132,380 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 127,828 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 37,486 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 36,554 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 44,439 |
| Country Flags with the Most Red | 0 | - | 4.97 | 93,669 |
| Country Flags with the Most Blue | 0 | - | 4.90 | 81,077 |
| Country Flags with the Most Green | 0 | - | 4.95 | 81,750 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 83,203 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 89,231 |
| Country Flags with the Most Black | 0 | - | 4.94 | 87,711 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 56,104 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 44,546 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 82,795 |
| Countries by Partial Flag Images #4 | 0 | - | 4.90 | 63,674 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 49,403 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 58,856 |
| World Coats of Arms | 0 | - | 4.99 | 56,675 |
| Countries With Blue and White Flags | 0 | - | 4.89 | 82,701 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 35,048 |
| Countries by Partial Flag Images #6 | 0 | - | 4.90 | 28,464 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 27,148 |
| Countries by Satellite Image #3 | 0 | - | 4.65 | 66,874 |
| Countries by Satellite Image #4 | 0 | - | 4.66 | 62,901 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 44,218 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 41,678 |
| Random Flag to Country | 0 | - | 4.99 | 515,791 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,748,410 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 95,084 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 76,262 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 334,229 |
| Merged Countries #2 | 0 | - | 4.96 | 90,752 |
| Merged Countries #4 | 0 | - | 4.86 | 85,761 |
| Merged Countries #6 | 0 | - | 4.90 | 66,243 |
| Merged Countries #7 | 0 | - | 4.94 | 75,436 |
| World Map without 12 Countries | 0 | - | 4.97 | 318,606 |
| Pixelated World Map | 0 | - | 5.00 | 130,555 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,169,854 |
| Country Shape Quiz #1 | 0 | - | 4.91 | 845,678 |
| Country Shape Quiz #2 | 0 | - | 4.97 | 380,223 |
| Every Country Shape | 0 | - | 5.00 | 391,179 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,227,501 |
| Former Flags | 0 | - | 4.97 | 82,846 |
| Members of the Arab League | 0 | - | 4.86 | 66,248 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,453 |
| Himalayan Countries | 0 | - | 4.94 | 108,399 |
| Andean Countries | 0 | - | 4.91 | 60,179 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,365 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,837 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,453 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,841 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,256 |
| Danube Countries | 0 | - | 4.96 | 57,226 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,237 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,294 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,701 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,397 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 111,014 |
| European Landlocked Countries | 0 | - | 4.99 | 137,039 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,807 |
| Countries with the Most Species | 0 | - | 4.99 | 89,855 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,337 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,020 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,314 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,060 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,883 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,119 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,923 |
| Countries in the Alps | 0 | - | 4.84 | 103,852 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,432 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,504 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,280 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,378 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,897 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,339 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,547 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,774 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,694 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,411 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,172 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,031 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,029 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,581 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,670 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,239 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,546 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,960 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,038 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,493 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,375 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,829 |
| Largest Countries By Category | 0 | - | 4.97 | 146,430 |
| Countries by Countries | 0 | - | 4.95 | 55,596 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,543 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,206 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,614 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 42,573 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 344,975 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 362,541 |
| Island Countries Quiz | 0 | - | 4.99 | 668,537 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 52,136 |
| Similar Flags #1 | 0 | - | 4.75 | 112,619 |
| Similar Flags #2 | 0 | - | 4.78 | 114,802 |
| Countries by Coat of Arms #2 | 0 | - | 4.78 | 32,541 |
| Biggest Countries by Area | 0 | - | 5.00 | 947,233 |
| Northernmost Countries | 0 | - | 4.99 | 330,865 |
| Countries of South America | 0 | - | 5.00 | 809,680 |
| Countries of Oceania | 0 | - | 5.00 | 913,313 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,610,645 |
| Countries by Picture #1 | 0 | - | 4.51 | 91,025 |
| Countries by Picture #3 | 0 | - | 4.52 | 55,234 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 147,962 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 153,724 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 123,040 |
| Flags of Countries of the World in 1910 | 0 | - | 4.95 | 70,163 |
| Country Shape Quiz #3 | 0 | - | 4.92 | 270,035 |
| Country Shape Quiz #4 | 0 | - | 4.92 | 199,808 |
| Country Shape Quiz #5 | 0 | - | 4.92 | 140,940 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 92,677 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 100,967 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 110,973 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 98,961 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 73,313 |
| Country Shapes in the World Map #7 | 0 | - | 4.98 | 50,788 |
| Country Shapes in the World Map #5 | 0 | - | 4.97 | 77,532 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 315,945 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 128,980 |
| Countries with Megacities | 0 | - | 4.99 | 201,770 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 175,307 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.97 | 99,930 |
| Countries With More than 200 Million People | 0 | - | 4.94 | 98,200 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.97 | 65,832 |
| Top 50 Countries by Population - In Order | 0 | - | 4.97 | 252,930 |
| Countries by Official Language | 0 | - | 4.96 | 175,200 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.92 | 253,156 |
| Countries in their Native Language | 0 | - | 4.98 | 180,520 |
| Independence from Whom | 0 | - | 4.99 | 189,320 |
| Subdivisions by Country | 0 | - | 4.84 | 46,886 |
| Who Controlled These Colonies? | 0 | - | 4.89 | 115,599 |
| Megadiverse Countries | 0 | - | 4.96 | 126,780 |
| Countries With the Most English Speakers | 0 | - | 4.87 | 93,862 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 107,572 |
| Most Desired Destinations for Potential Migrants | 0 | - | 4.82 | 47,807 |
| 15 Biggest Island Countries | 0 | - | 4.99 | 133,309 |
| Most Recently-Settled Countries | 0 | - | 4.92 | 49,882 |
| Countries of the World in 1938 Quiz | 0 | - | 4.96 | 79,607 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.95 | 146,025 |
| Countries with Multiple Populous Islands | 0 | - | 4.91 | 77,704 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 41,849 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,053 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 102,249 |
| Countries Furthest from the United States | 0 | - | 4.94 | 72,927 |
| Countries with the Highest HDI | 0 | - | 4.95 | 131,456 |
| Straight Shot to the Arctic Circle | 0 | - | 4.92 | 69,394 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 66,012 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 86,377 |
| World Map Quiz | 0 | - | 4.90 | 51,368 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 118,375 |
| Countries Connected in the World Map #2 | 0 | - | 4.97 | 70,258 |
| Countries Connected in the World Map #1 | 0 | - | 4.97 | 67,200 |
| Countries Connected in the World Map #3 | 0 | - | 4.96 | 66,672 |
| Countries in a Ring of the World Map | 0 | - | 4.99 | 143,226 |
| Countries in a Strip of the World Map | 0 | - | 4.99 | 65,394 |
| Smallest Countries with at Least One Border | 0 | - | 4.90 | 82,699 |
| Countries in a Stewart of the World Map | 0 | - | 4.99 | 49,015 |
| Southernmost Countries of the World | 0 | - | 4.99 | 209,689 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 92,784 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 109,929 |
| Countries With the Most Languages | 0 | - | 4.90 | 177,639 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.93 | 88,670 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.86 | 73,034 |
| Countries with the Most Prisoners | 0 | - | 4.93 | 88,243 |
| Countries with the Most Domestic Camels | 0 | - | 4.93 | 55,064 |
| Tallest Countries North to South | 0 | - | 4.85 | 111,543 |
| Widest Countries East to West | 0 | - | 4.93 | 120,517 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 69,114 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 160,507 |
| Countries with the Longest Perimeter | 0 | - | 4.81 | 72,812 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 93,400 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 86,617 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 120,622 |
| Countries with the Most Desert | 0 | - | 4.92 | 106,454 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 66,794 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 32,404 |
| Countries with Double Letters | 0 | - | 4.96 | 71,756 |
| Countries that End in N | 0 | - | 4.94 | 135,926 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 233,785 |
| Countries with Six Letters Quiz | 0 | - | 4.95 | 190,481 |
| Countries with W | 0 | - | 4.96 | 125,607 |
| Countries with Z | 0 | - | 4.98 | 264,570 |
| Countries with Letters Missing | 0 | - | 4.97 | 169,650 |
| Countries That End in U | 0 | - | 4.95 | 109,314 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 92,322 |
| Countries that End in O | 0 | - | 4.92 | 148,621 |
| Countries that End in R | 0 | - | 4.85 | 97,293 |
