| All Country Flags of the World | 0 | - | 5.00 | 3,710,329 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,545,386 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,913 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,249 |
| Flags with Crescents | 0 | - | 4.98 | 171,235 |
| Country Flag Trivia | 0 | - | 4.81 | 57,949 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,832 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,376 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,525 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,898 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,931 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,445 |
| 20 Random Country Flags | 0 | - | 4.99 | 618,460 |
| Flags of North and South America | 0 | - | 4.99 | 376,700 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,245 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,246 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,816 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,135 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,530 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,253 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,566 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,341 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,289 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,291 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,231 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,305 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,099 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,699 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,102 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,073 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,469 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,900 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,026 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,380 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,618 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,704 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,646 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,779 |
| Flags to Languages | 0 | - | 4.95 | 174,459 |
| Former Flags | 0 | - | 4.97 | 108,523 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,218 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,994 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 44,987 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,508 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,212 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,224 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,565 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,292 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,369 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,510 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,964 |
| Flag Maths | 0 | - | 4.61 | 57,830 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,798 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,145 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,233 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,039 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,635 |
| World Coats of Arms | 0 | - | 4.99 | 65,097 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,823 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,654 |
| Similar Flags #1 | 0 | - | 4.75 | 130,724 |
| Similar Flags #2 | 0 | - | 4.74 | 138,027 |
| Name a Valid Country Flag | 0 | - | 4.70 | 76,959 |
| Emoji Flags | 0 | - | 4.35 | 44,273 |
| Countries by Road Signs | 0 | - | 4.98 | 54,324 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,263 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,073 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,152 |
| Select the World Flags | 0 | - | 4.28 | 37,978 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,512 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,758 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,462 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,509 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,115 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,691 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,371 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,046 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,200 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,634 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,257,043 |
| Flags of Asia Quiz | 0 | - | 4.99 | 619,795 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,215 |
| Pixelated World Map | 0 | - | 5.00 | 144,056 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,896 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,729,224 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,095 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,158 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,404 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,529 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,055 |
| Flags of Oceania | 0 | - | 5.00 | 262,492 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,497 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,415 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,416 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,742 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,434 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,338 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,387 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,789 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,345 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,682 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,218 |
| Geography by Picture - B | 0 | - | 4.42 | 55,772 |
| Geography by Picture - H | 0 | - | 4.50 | 58,369 |
| Geography by Picture - N | 0 | - | 4.45 | 42,334 |
| Geography by Picture - R | 0 | - | 4.56 | 41,139 |
| Geography by Picture - T | 0 | - | 4.54 | 57,992 |
| Flags of WW1 | 0 | - | 4.60 | 38,670 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,300 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,959 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,541 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 131,684 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,431 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,739 |
| Name a Valid African Country | 0 | - | 4.98 | 154,981 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,829 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,891 |
| Boundary Waters | 0 | - | 4.92 | 88,747 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,398 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,665 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,290 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,933 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,934 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,849,816 |
| Landlocked Countries | 0 | - | 4.99 | 425,338 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,015 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 587,254 |
| Random Point on Land to European Country | 0 | - | 4.94 | 77,982 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,774 |
| Merged Countries #2 | 0 | - | 4.96 | 99,854 |
| Merged Countries #4 | 0 | - | 4.81 | 94,091 |
| Merged Countries #6 | 0 | - | 4.90 | 73,789 |
| Merged Countries #7 | 0 | - | 4.93 | 83,126 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,416 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,428 |
| Satellite Images #1 | 0 | - | 4.47 | 129,951 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,636 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,192 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,204 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,184 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,536 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,068 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,908 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,372 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,922 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,950 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 42,217 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,724 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,658 |
| World Capitals Quiz | 0 | - | 5.00 | 5,103,828 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,220 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,347 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,361 |
| Which City in Europe? | 0 | - | 4.83 | 107,861 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,046 |
| Himalayan Countries | 0 | - | 4.93 | 140,067 |
| Andean Countries | 0 | - | 4.94 | 85,339 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,489 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,867 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,073 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,346 |
| Danube Countries | 0 | - | 4.97 | 72,333 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,521 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,779 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,017 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,527 |
| European Landlocked Countries | 0 | - | 4.99 | 147,559 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,220 |
| Countries with the Most Species | 0 | - | 4.99 | 103,531 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,346 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,757 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,860 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,805 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,537 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,974 |
| Countries in the Alps | 0 | - | 4.87 | 118,706 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,524 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,774 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,932 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,983 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,904 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,210 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,347 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,815 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,389 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,141 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,838 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,709 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,522 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,745 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,847 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,736 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,576 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,735 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,621 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,517 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,037 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,480 |
| Largest Countries By Category | 0 | - | 4.97 | 158,797 |
| Countries by Countries | 0 | - | 4.96 | 63,598 |
