| All Country Flags of the World | 0 | - | 5.00 | 3,724,471 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,758 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,098,228 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 737,124 |
| Flags with Crescents | 0 | - | 4.98 | 171,731 |
| Country Flag Trivia | 0 | - | 4.82 | 58,295 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,163 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,632 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,876 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,119 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,162 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,628 |
| Real vs. Fake Flags | 0 | - | 4.98 | 126,075 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,622 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,612 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,215 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,355 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,815 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,586 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,910 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,574 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,492 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,552 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,445 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,490 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,293 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,875 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,293 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,188 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,554 |
| Country Flags Slideshow | 0 | - | 4.91 | 48,019 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,188 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,540 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,793 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,874 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,847 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,860 |
| Flags of North and South America | 0 | - | 4.99 | 378,088 |
| Flags to Languages | 0 | - | 4.95 | 174,691 |
| Former Flags | 0 | - | 4.97 | 108,817 |
| 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 | 31,281 |
| 20 Random Country Flags | 0 | - | 4.99 | 620,324 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,395 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,679 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,528 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,670 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,395 |
| 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 | 49,334 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,133 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,683 |
| World Coats of Arms | 0 | - | 4.99 | 65,314 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,774 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,985 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,964 |
| Similar Flags #1 | 0 | - | 4.75 | 130,950 |
| Similar Flags #2 | 0 | - | 4.74 | 138,229 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.69 | 38,293 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,805 |
| Emoji Flags | 0 | - | 4.35 | 44,327 |
| Countries by Road Signs | 0 | - | 4.98 | 54,448 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,279 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,741 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,598 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,657 |
| Select the World Flags | 0 | - | 4.28 | 38,035 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,653 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,229 |
| 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 | 47,184 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,757 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,545 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,116 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,259 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,261,203 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,828 |
| Pixelated World Map | 0 | - | 5.00 | 144,268 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 62,168 |
| Flags of Africa Quiz | 0 | - | 5.00 | 479,003 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,804 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,978 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,318 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,471 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,648 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,468 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,836 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,448 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,739 |
| 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 | 58,429 |
| Geography by Picture - N | 0 | - | 4.45 | 42,394 |
| Geography by Picture - R | 0 | - | 4.56 | 41,190 |
| Geography by Picture - T | 0 | - | 4.54 | 58,044 |
| Merged Company Logos #3 | 0 | - | 4.50 | 65,020 |
| Flags of Oceania | 0 | - | 5.00 | 263,440 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,839 |
| Flags of WW1 | 0 | - | 4.60 | 38,768 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.32 | 27,400 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,648 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,584 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,881 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,603 |
| Boundary Waters | 0 | - | 4.92 | 88,834 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,466 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,838 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,561 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,061 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,082 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,968,302 |
| Landlocked Countries | 0 | - | 4.99 | 427,232 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,839 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,864 |
| Satellite Images #1 | 0 | - | 4.46 | 130,093 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,810 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,455 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,302 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,264 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,667 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,911 |
| World Capitals Quiz | 0 | - | 5.00 | 5,113,669 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,812,328 |
| Merged Countries #2 | 0 | - | 4.96 | 99,963 |
| Merged Countries #4 | 0 | - | 4.81 | 94,187 |
| 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 | 51,229 |
| 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 | 59,175 |
| Geography by Picture - M | 0 | - | 4.14 | 40,617 |
| Geography by Picture - P | 0 | - | 4.24 | 42,601 |
| 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 | 84,552 |
| Islands by Picture | 0 | - | 4.28 | 107,958 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,990 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,514 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,165 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,190 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,600 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,798 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,602,235 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 377,037 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,348 |
| Island Countries | 0 | - | 4.99 | 713,009 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,905 |
| Himalayan Countries | 0 | - | 4.93 | 140,821 |
| Andean Countries | 0 | - | 4.94 | 85,798 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,913 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,484 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,464 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,687 |
| Danube Countries | 0 | - | 4.97 | 72,553 |
| 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 | 85,439 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,914 |
| European Landlocked Countries | 0 | - | 4.99 | 147,740 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,537 |
| Countries with the Most Species | 0 | - | 4.99 | 103,645 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,638 |
| 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 | 59,925 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,679 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,128 |
| Countries in the Alps | 0 | - | 4.87 | 118,971 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,986 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,131 |
| 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 | 117,127 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,389 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,594 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,991 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,513 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,314 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,954 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,831 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,674 |
| 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 | 120,148 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,732 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,437 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,842 |
