| All Country Flags of the World | 0 | - | 5.00 | 3,696,287 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,542,825 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,666 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,364 |
| Flags with Crescents | 0 | - | 4.98 | 170,813 |
| Country Flag Trivia | 0 | - | 4.81 | 57,694 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,517 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,098 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,188 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,701 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,724 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,288 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,307 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,842 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,929 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,432 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,930 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,219 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,928 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,185 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,136 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,060 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,069 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,042 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,112 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,908 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,531 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,960 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,971 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,368 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,741 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,879 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,230 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,435 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,518 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,456 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,702 |
| Flags of North and South America | 0 | - | 4.99 | 375,601 |
| Flags to Languages | 0 | - | 4.95 | 174,216 |
| Former Flags | 0 | - | 4.97 | 108,253 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,147 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,879 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,833 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,554 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,150 |
| 20 Random Country Flags | 0 | - | 4.99 | 616,631 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,109 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,440 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,067 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,149 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,529 |
| Flag Maths | 0 | - | 4.61 | 57,812 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,517 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,013 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,156 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,953 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,587 |
| World Coats of Arms | 0 | - | 4.99 | 64,891 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,193 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,616 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,357 |
| Similar Flags #1 | 0 | - | 4.75 | 130,506 |
| Similar Flags #2 | 0 | - | 4.74 | 137,814 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,121 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,422 |
| Emoji Flags | 0 | - | 4.35 | 44,223 |
| Countries by Road Signs | 0 | - | 4.98 | 54,197 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,906 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,405 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,431 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,896 |
| Select the World Flags | 0 | - | 4.27 | 37,904 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,344 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,072 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,218 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,661 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,358 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,428 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,060 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,636 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,089 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,987 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,119 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,252,959 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,858 |
| Pixelated World Map | 0 | - | 5.00 | 143,856 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,835 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,358 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,518 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,820 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,963 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,345 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,932 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,288 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,734 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,250 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,616 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,176 |
| Geography by Picture - B | 0 | - | 4.42 | 55,723 |
| Geography by Picture - H | 0 | - | 4.50 | 58,327 |
| Geography by Picture - N | 0 | - | 4.45 | 42,296 |
| Geography by Picture - R | 0 | - | 4.56 | 41,103 |
| Geography by Picture - T | 0 | - | 4.54 | 57,947 |
| Merged Company Logos #3 | 0 | - | 4.50 | 64,740 |
| Flags of Oceania | 0 | - | 5.00 | 261,626 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,122 |
| Flags of WW1 | 0 | - | 4.60 | 38,591 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,306 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,302 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,256 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,608 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,242 |
| Boundary Waters | 0 | - | 4.92 | 88,665 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,330 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,474 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,040 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,787 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,784 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,727,046 |
| Landlocked Countries | 0 | - | 4.99 | 423,768 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 583,016 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,683 |
| Satellite Images #1 | 0 | - | 4.47 | 129,580 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,478 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,061 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,080 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,093 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,410 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,867 |
| World Capitals Quiz | 0 | - | 5.00 | 5,094,384 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,791,683 |
| Merged Countries #2 | 0 | - | 4.96 | 99,623 |
| Merged Countries #6 | 0 | - | 4.90 | 73,648 |
| Merged Countries #7 | 0 | - | 4.93 | 82,996 |
| Geography by Picture - A | 0 | - | 4.39 | 60,379 |
| Geography by Picture - D | 0 | - | 4.15 | 45,747 |
| Geography by Picture - F | 0 | - | 4.31 | 51,125 |
| Geography by Picture - G | 0 | - | 4.39 | 48,044 |
| Geography by Picture - J | 0 | - | 4.16 | 38,553 |
| Geography by Picture - K | 0 | - | 4.29 | 33,212 |
| Geography by Picture - C | 0 | - | 4.31 | 57,181 |
| Geography by Picture - L | 0 | - | 4.37 | 59,084 |
| Geography by Picture - M | 0 | - | 4.14 | 40,543 |
| Geography by Picture - P | 0 | - | 4.24 | 42,525 |
| Geography by Picture - S | 0 | - | 4.38 | 47,136 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,647 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,461 |
| Islands by Picture | 0 | - | 4.28 | 107,509 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,817 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,215 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,693 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,724 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,173 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,439 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,121 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,083 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,493 |
| Island Countries | 0 | - | 4.99 | 711,740 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,321 |
| Himalayan Countries | 0 | - | 4.94 | 139,494 |
| Andean Countries | 0 | - | 4.94 | 85,039 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,235 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,430 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,793 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,107 |
| Danube Countries | 0 | - | 4.97 | 72,206 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,296 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,617 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,700 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,201 |
| European Landlocked Countries | 0 | - | 4.99 | 147,365 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,967 |
| Countries with the Most Species | 0 | - | 4.99 | 103,415 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,106 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,680 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,792 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,687 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,432 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,845 |
| Countries in the Alps | 0 | - | 4.87 | 118,478 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,054 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,431 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,806 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,805 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,735 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,094 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,911 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,665 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,290 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,015 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,760 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,626 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,384 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,634 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,718 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,362 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,472 |
| Countries that Host the Most Refugees | 0 | - | 4.97 | 65,203 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,347 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,883 |
