| All Country Flags of the World | 0 | - | 5.00 | 3,724,099 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,698 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,184 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,099 |
| Flags with Crescents | 0 | - | 4.98 | 171,722 |
| Country Flag Trivia | 0 | - | 4.82 | 58,287 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,158 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,622 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,870 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,115 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,157 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,623 |
| Real vs. Fake Flags | 0 | - | 4.98 | 126,059 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,607 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,597 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,198 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,341 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,801 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,571 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,897 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,565 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,488 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,542 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,433 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,479 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,281 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,865 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,282 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,188 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,549 |
| Country Flags Slideshow | 0 | - | 4.91 | 48,015 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,183 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,533 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,787 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,869 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,842 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,857 |
| Flags of North and South America | 0 | - | 4.99 | 378,051 |
| Flags to Languages | 0 | - | 4.95 | 174,684 |
| Former Flags | 0 | - | 4.97 | 108,807 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,302 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,140 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,094 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,865 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,279 |
| 20 Random Country Flags | 0 | - | 4.99 | 620,256 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,391 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,675 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,526 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,654 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,385 |
| Flag Maths | 0 | - | 4.61 | 57,864 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 147,055 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,267 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,333 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,128 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,681 |
| World Coats of Arms | 0 | - | 4.99 | 65,313 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,765 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,978 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,948 |
| Similar Flags #1 | 0 | - | 4.75 | 130,942 |
| Similar Flags #2 | 0 | - | 4.74 | 138,219 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.69 | 38,290 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,797 |
| Emoji Flags | 0 | - | 4.35 | 44,324 |
| Countries by Road Signs | 0 | - | 4.98 | 54,442 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,277 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,737 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,596 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,650 |
| Select the World Flags | 0 | - | 4.28 | 38,035 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,646 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,226 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,143 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,832 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,546 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,591 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,181 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,757 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,541 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,115 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,255 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,062 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,781 |
| Pixelated World Map | 0 | - | 5.00 | 144,262 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 62,160 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,951 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,801 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,977 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,306 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,470 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,641 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,466 |
| 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 | 44,736 |
| 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 | 41,188 |
| Geography by Picture - T | 0 | - | 4.54 | 58,042 |
| Merged Company Logos #3 | 0 | - | 4.50 | 65,019 |
| Flags of Oceania | 0 | - | 5.00 | 263,414 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,828 |
| Flags of WW1 | 0 | - | 4.60 | 38,765 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.32 | 27,399 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,642 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,578 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,875 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,601 |
| Boundary Waters | 0 | - | 4.92 | 88,832 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,465 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,829 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,551 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,060 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,081 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,965,283 |
| Landlocked Countries | 0 | - | 4.99 | 427,201 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,745 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,860 |
| Satellite Images #1 | 0 | - | 4.46 | 130,073 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,766 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,446 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,293 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,254 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,662 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,911 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,396 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,005 |
| Merged Countries #2 | 0 | - | 4.96 | 99,961 |
| Merged Countries #4 | 0 | - | 4.81 | 94,185 |
| Merged Countries #6 | 0 | - | 4.90 | 73,894 |
| Merged Countries #7 | 0 | - | 4.93 | 83,234 |
| Geography by Picture - A | 0 | - | 4.39 | 60,483 |
| 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 | 57,279 |
| Geography by Picture - L | 0 | - | 4.37 | 59,173 |
| Geography by Picture - M | 0 | - | 4.14 | 40,616 |
| Geography by Picture - P | 0 | - | 4.24 | 42,600 |
| Geography by Picture - S | 0 | - | 4.38 | 47,211 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,830 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,549 |
| Islands by Picture | 0 | - | 4.28 | 107,953 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,987 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,508 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,160 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,184 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,573 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,791 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,132 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,029 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,337 |
| Island Countries | 0 | - | 4.99 | 712,998 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,888 |
| Himalayan Countries | 0 | - | 4.93 | 140,802 |
| Andean Countries | 0 | - | 4.94 | 85,788 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,908 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,476 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,457 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,684 |
| Danube Countries | 0 | - | 4.97 | 72,546 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,795 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,970 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,429 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,908 |
| European Landlocked Countries | 0 | - | 4.99 | 147,735 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,530 |
| Countries with the Most Species | 0 | - | 4.99 | 103,642 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,631 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,812 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,951 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,923 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,676 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,125 |
| Countries in the Alps | 0 | - | 4.87 | 118,966 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,979 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,122 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,053 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,168 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,123 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,387 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,586 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,987 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,512 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,309 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,951 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,829 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,668 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,920 |
| Countries with the Most Grassland | 0 | - | 4.94 | 78,017 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,135 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,729 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,411 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,831 |
