| All Country Flags of the World | 0 | - | 5.00 | 3,051,294 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,388,701 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,014,594 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 679,868 |
| Flags with Crescents | 0 | - | 4.98 | 146,219 |
| Country Flag Trivia | 0 | - | 4.81 | 45,224 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.99 | 77,960 |
| Country Flags with the Union Jack | 0 | - | 4.83 | 57,514 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 69,551 |
| Flag Maths | 0 | - | 4.92 | 50,981 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.82 | 43,096 |
| Random Flag to Country | 0 | - | 4.99 | 515,429 |
| Countries by Partial Flag Images #1 | 0 | - | 4.97 | 114,862 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 90,298 |
| Flags with the Most Stars | 0 | - | 4.91 | 108,199 |
| Flags that are Red & White Only | 0 | - | 4.97 | 132,331 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 127,744 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 37,409 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 36,521 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 44,395 |
| Country Flags with the Most Red | 0 | - | 4.97 | 93,612 |
| Country Flags with the Most Blue | 0 | - | 4.90 | 81,038 |
| Country Flags with the Most Green | 0 | - | 4.95 | 81,692 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 83,154 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 89,145 |
| Country Flags with the Most Black | 0 | - | 4.94 | 87,665 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 56,081 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 44,524 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 82,745 |
| Countries by Partial Flag Images #4 | 0 | - | 4.90 | 63,624 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 49,353 |
| Countries With Blue and White Flags | 0 | - | 4.89 | 82,668 |
| Flags to Languages | 0 | - | 4.95 | 160,533 |
| Former Flags | 0 | - | 4.97 | 82,785 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 34,990 |
| Category Elimination - Country Flags #1 | 0 | - | 4.97 | 127,625 |
| Countries by Partial Flag Images #6 | 0 | - | 4.90 | 28,403 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 315,671 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 27,126 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 95,035 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 76,226 |
| Flags of the Mediterranean | 0 | - | 4.93 | 125,748 |
| Country Flags Multiple Choice | 0 | - | 4.98 | 116,858 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 67,695 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.83 | 87,566 |
| Random Flags Quiz | 0 | - | 4.41 | 259,154 |
| Countries by Satellite Image #1 | 0 | - | 4.88 | 131,405 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 76,603 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.86 | 44,945 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 58,837 |
| World Coats of Arms | 0 | - | 4.99 | 56,623 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 42,489 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 153,392 |
| Country Flags with the Southern Cross | 0 | - | 4.72 | 52,115 |
| Similar Flags #1 | 0 | - | 4.75 | 112,538 |
| Similar Flags #2 | 0 | - | 4.78 | 114,727 |
| Name a Valid Country Flag | 0 | - | 4.56 | 49,000 |
| Emoji Flags | 0 | - | 4.34 | 41,080 |
| Countries by Road Signs | 0 | - | 4.98 | 46,229 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 54,746 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.65 | 54,839 |
| Select the World Flags | 0 | - | 4.31 | 33,842 |
| Islands by Shape #2 | 0 | - | 4.87 | 45,309 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.76 | 23,888 |
| Countries by Satellite Image #3 | 0 | - | 4.65 | 66,838 |
| Countries by Satellite Image #2 | 0 | - | 4.79 | 64,923 |
| Countries by Satellite Image #4 | 0 | - | 4.66 | 62,868 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 44,198 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 41,660 |
| Countries by Coat of Arms #2 | 0 | - | 4.78 | 32,520 |
| Countries by Picture #1 | 0 | - | 4.51 | 90,970 |
| Countries by Picture #3 | 0 | - | 4.52 | 55,205 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 42,958 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 68,061 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,065,344 |
| Flags of Asia Quiz | 0 | - | 4.99 | 534,287 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.93 | 1,207,209 |
| Pixelated World Map | 0 | - | 5.00 | 130,476 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,515,123 |
| Flags of Africa Quiz | 0 | - | 4.99 | 395,807 |
| Satellite Images - Europe | 0 | - | 4.44 | 82,860 |
| European Cities by Picture #2 | 0 | - | 4.44 | 35,115 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.97 | 65,536 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 123,262 |
| Flags of Oceania | 0 | - | 5.00 | 220,306 |
| Three Band Flags of Europe | 0 | - | 4.97 | 172,886 |
| Pixelated Africa Map | 0 | - | 4.98 | 89,453 |
| Pixelated Asia Map | 0 | - | 4.90 | 64,358 |
| Pixelated Europe Map | 0 | - | 4.90 | 110,898 |
| Cities by Satellite #1 | 0 | - | 4.37 | 71,891 |
| Cities by Satellite #2 | 0 | - | 4.47 | 23,047 |
| Countries by Picture #4 | 0 | - | 4.17 | 42,352 |
| Countries by Picture #2 | 0 | - | 4.37 | 65,087 |
| Countries by Picture #5 | 0 | - | 4.27 | 40,319 |
| Countries by Picture #6 | 0 | - | 4.14 | 33,982 |
| Geography by Picture - H | 0 | - | 4.51 | 55,588 |
| Geography by Picture - N | 0 | - | 4.46 | 39,917 |
| Geography by Picture - R | 0 | - | 4.54 | 38,911 |
| Geography by Picture - T | 0 | - | 4.57 | 55,212 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 64,429 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.94 | 68,542 |
| Name a Valid European Capital | 0 | - | 4.94 | 127,827 |
| Countries that Produce the Most Beer | 0 | - | 4.87 | 117,567 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 192,797 |
| Name a Valid Asian Country | 0 | - | 4.98 | 93,635 |
| Name a Valid African Country | 0 | - | 4.98 | 126,235 |
| Name a Valid European Country #2 | 0 | - | 4.93 | 85,877 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.51 | 23,657 |
| Boundary Waters | 0 | - | 4.93 | 81,977 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,306 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.92 | 46,998 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 52,496 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 61,413 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,715,937 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 333,828 |
| Category Elimination - European Countries #1 | 0 | - | 4.88 | 78,013 |
| Save Humanity by Guessing Countries | 0 | - | 4.99 | 375,081 |
| Merged Countries #2 | 0 | - | 4.96 | 90,709 |
| Merged Countries #4 | 0 | - | 4.87 | 85,713 |
| Merged Countries #6 | 0 | - | 4.90 | 66,196 |
| Merged Countries #7 | 0 | - | 4.94 | 75,384 |
| Countries that Beat Australia | 0 | - | 4.84 | 71,260 |
| Satellite Images Quiz #1 | 0 | - | 4.47 | 123,552 |
| Satellite Images Quiz #2 | 0 | - | 4.65 | 104,425 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 85,010 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 46,258 |
| Satellite Images Quiz #6 | 0 | - | 4.53 | 36,033 |
| Cities by Picture #1 | 0 | - | 4.70 | 78,273 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,761 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,224 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 85,544 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,518 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,457 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.94 | 111,526 |
| World Capitals Quiz | 0 | - | 5.00 | 4,570,499 |
| Random African Capitals on a Map | 0 | - | 4.95 | 49,021 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 45,763 |
| Random European Capitals on a Map | 0 | - | 4.98 | 108,688 |
| Which City in Europe? | 0 | - | 4.85 | 98,704 |
| Members of the Arab League | 0 | - | 4.85 | 66,112 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,337 |
| Himalayan Countries | 0 | - | 4.94 | 108,277 |
| Andean Countries | 0 | - | 4.91 | 60,102 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,275 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,783 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,379 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,817 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,210 |
| Danube Countries | 0 | - | 4.96 | 57,199 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,210 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,280 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,651 |
| Countries with the Worst Passports | 0 | - | 4.88 | 50,351 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,928 |
| European Landlocked Countries | 0 | - | 4.99 | 137,006 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,760 |
| Countries with the Most Species | 0 | - | 4.99 | 89,847 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,299 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,002 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,304 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,022 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,864 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,106 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,884 |
| Countries in the Alps | 0 | - | 4.84 | 103,806 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,398 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,407 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,252 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,334 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,863 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,311 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,504 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,740 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,677 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,380 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,139 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,002 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,015 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,541 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,632 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,208 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,440 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,930 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,003 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,194 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,272 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,805 |
| Largest Countries By Category | 0 | - | 4.97 | 146,352 |
| Countries by Countries | 0 | - | 4.95 | 55,552 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,165,644 |
| Country Flags with the Most White | 0 | - | 4.90 | 126,487 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,180 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 45,107 |
| All Countries by Population With a Map | 0 | - | 4.99 | 64,818 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 77,927 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,560 |
| Countries that Produce the Most Wine | 0 | - | 4.88 | 181,282 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,224,841 |
| Countries that Beat the United States | 0 | - | 4.92 | 148,017 |
| Countries that Beat China | 0 | - | 4.83 | 101,792 |
