| All Country Flags of the World | 0 | - | 5.00 | 3,724,357 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,737 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,213 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,116 |
| Flags with Crescents | 0 | - | 4.98 | 171,724 |
| Country Flag Trivia | 0 | - | 4.82 | 58,293 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,161 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,632 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,875 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,119 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,160 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,628 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,617 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,608 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,212 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,351 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,812 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,583 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,904 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,572 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,492 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,550 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,442 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,486 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,291 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,873 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,291 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,188 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,553 |
| Country Flags Slideshow | 0 | - | 4.91 | 48,017 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,186 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,538 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,791 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,872 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,845 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,859 |
| Flags of North and South America | 0 | - | 4.99 | 378,081 |
| Flags to Languages | 0 | - | 4.95 | 174,691 |
| Former Flags | 0 | - | 4.97 | 108,812 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,303 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,144 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,096 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,868 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,280 |
| 20 Random Country Flags | 0 | - | 4.99 | 620,302 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,393 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,677 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,528 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,665 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,390 |
| Flag Maths | 0 | - | 4.61 | 57,864 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 147,059 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,272 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,333 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,131 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,683 |
| World Coats of Arms | 0 | - | 4.99 | 65,313 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,772 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,980 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,955 |
| Similar Flags #1 | 0 | - | 4.75 | 130,949 |
| Similar Flags #2 | 0 | - | 4.74 | 138,228 |
| Emoji Flags | 0 | - | 4.35 | 44,326 |
| Countries by Road Signs | 0 | - | 4.98 | 54,447 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,279 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,597 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,654 |
| Select the World Flags | 0 | - | 4.28 | 38,035 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,652 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,228 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,151 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,834 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,549 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,592 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,183 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,757 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,544 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,115 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,258 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,173 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,811 |
| Pixelated World Map | 0 | - | 5.00 | 144,266 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 62,165 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,994 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,802 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,977 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,316 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,471 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,647 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,467 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,835 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,447 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,737 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,258 |
| Geography by Picture - B | 0 | - | 4.42 | 55,830 |
| Geography by Picture - H | 0 | - | 4.50 | 58,427 |
| Geography by Picture - N | 0 | - | 4.45 | 42,394 |
| Geography by Picture - R | 0 | - | 4.56 | 41,189 |
| Geography by Picture - T | 0 | - | 4.54 | 58,043 |
| Flags of Oceania | 0 | - | 5.00 | 263,431 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,837 |
| Flags of WW1 | 0 | - | 4.60 | 38,765 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,646 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,581 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,880 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,603 |
| Boundary Waters | 0 | - | 4.92 | 88,833 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,465 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,837 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,560 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,060 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,082 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,967,521 |
| Landlocked Countries | 0 | - | 4.99 | 427,227 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,810 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,863 |
| Satellite Images #1 | 0 | - | 4.46 | 130,090 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,803 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,450 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,297 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,260 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,665 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,911 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,578 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,226 |
| Merged Countries #2 | 0 | - | 4.96 | 99,963 |
| Merged Countries #4 | 0 | - | 4.81 | 94,186 |
| Merged Countries #6 | 0 | - | 4.90 | 73,899 |
| Merged Countries #7 | 0 | - | 4.93 | 83,238 |
| Geography by Picture - A | 0 | - | 4.39 | 60,484 |
| Geography by Picture - D | 0 | - | 4.15 | 45,824 |
| Geography by Picture - F | 0 | - | 4.31 | 51,228 |
| Geography by Picture - G | 0 | - | 4.39 | 48,120 |
| Geography by Picture - J | 0 | - | 4.16 | 38,632 |
| Geography by Picture - K | 0 | - | 4.29 | 33,290 |
| Geography by Picture - C | 0 | - | 4.31 | 57,280 |
| Geography by Picture - L | 0 | - | 4.37 | 59,174 |
| Geography by Picture - M | 0 | - | 4.14 | 40,616 |
| Geography by Picture - P | 0 | - | 4.24 | 42,601 |
| Geography by Picture - S | 0 | - | 4.38 | 47,211 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,552 |
| Islands by Picture | 0 | - | 4.28 | 107,954 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,990 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,512 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,163 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,188 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,595 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,795 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,200 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,035 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,345 |
| Island Countries | 0 | - | 4.99 | 713,006 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,902 |
| Himalayan Countries | 0 | - | 4.93 | 140,814 |
| Andean Countries | 0 | - | 4.94 | 85,795 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,912 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,480 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,462 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,686 |
| Danube Countries | 0 | - | 4.97 | 72,552 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,799 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,971 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,435 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,912 |
| European Landlocked Countries | 0 | - | 4.99 | 147,739 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,536 |
| Countries with the Most Species | 0 | - | 4.99 | 103,645 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,634 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,814 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,953 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,923 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,679 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,126 |
| Countries in the Alps | 0 | - | 4.87 | 118,970 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,984 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,130 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,053 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,170 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,126 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,389 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,593 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,990 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,513 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,313 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,953 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,831 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,673 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,924 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,019 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,144 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,732 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,431 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,835 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 246,295 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,489 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,614 |
| Largest Countries By Category | 0 | - | 4.97 | 159,089 |
| Countries by Countries | 0 | - | 4.97 | 63,804 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,440 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,450 |
