| All Country Flags of the World | 0 | - | 5.00 | 3,684,727 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,889 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,667 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,662 |
| Flags with Crescents | 0 | - | 4.98 | 170,425 |
| Country Flag Trivia | 0 | - | 4.81 | 57,453 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,227 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,893 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,886 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,538 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,541 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,110 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,331 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,499 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,048 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,644 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,859 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,537 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,749 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,893 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,819 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,822 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,816 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,915 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,707 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,336 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,777 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,855 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,261 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,585 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,700 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,036 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,245 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,329 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,209 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,599 |
| Flags of North and South America | 0 | - | 4.99 | 374,670 |
| Flags to Languages | 0 | - | 4.95 | 173,984 |
| Former Flags | 0 | - | 4.97 | 108,031 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,049 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,739 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,674 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,155 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,373 |
| 20 Random Country Flags | 0 | - | 4.99 | 615,169 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,077 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,969 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,335 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,880 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,907 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,960 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,153 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,064 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,012 |
| Flag Maths | 0 | - | 4.64 | 57,797 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,288 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,906 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,089 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,893 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,561 |
| World Coats of Arms | 0 | - | 4.99 | 64,780 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,010 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,211 |
| Similar Flags #1 | 0 | - | 4.75 | 130,334 |
| Similar Flags #2 | 0 | - | 4.74 | 137,633 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,032 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,264 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,223 |
| Emoji Flags | 0 | - | 4.35 | 44,171 |
| Countries by Road Signs | 0 | - | 4.98 | 54,073 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,560 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,796 |
| Select the World Flags | 0 | - | 4.27 | 37,855 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,372 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,667 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,043 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,372 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,823 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,454 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,583 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,287 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,356 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,014 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,598 |
| Countries by Picture #1 | 0 | - | 4.52 | 118,723 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,923 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,038 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,728 |
| Countries with the Most Christians | 0 | - | 4.93 | 143,689 |
| Pixelated World Map | 0 | - | 5.00 | 143,691 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,607 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,760 |
| Flags of WW1 | 0 | - | 4.60 | 38,525 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,800 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,290 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,210 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 167,857 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,428 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,674 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,169 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,350 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,610 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,204 |
| Capital Cities by Cartoon Riddles | 0 | - | 4.98 | 87,644 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,275 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,515 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,839 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,343 |
| Click a Valid World Capital A-Z | 0 | - | 4.83 | 90,852 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,327 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,872 |
| Orthodox Countries | 0 | - | 4.92 | 132,339 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,908 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,859 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 135,791 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,439 |
| Battle to Country | 0 | - | 4.91 | 53,585 |
| Monarchies of Europe | 0 | - | 4.90 | 98,411 |
| Monarchies of Asia | 0 | - | 4.97 | 71,271 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 67,290 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,060 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,085 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,406 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,321 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,536 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,684 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,163 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,572 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,137 |
| Flags of Oceania | 0 | - | 5.00 | 260,839 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,808 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,201 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,116 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,437 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,049 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,632 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,544 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,469 |
| Countries Mentioned in the Wikipedia Page of Germany | 0 | - | 4.82 | 64,796 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 533,759 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,563 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,483 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,089 |
| Merged Countries #2 | 0 | - | 4.96 | 99,302 |
| Merged Countries #6 | 0 | - | 4.90 | 73,519 |
| Merged Countries #7 | 0 | - | 4.93 | 82,860 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,991 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 57,031 |
| Geography by Picture - B | 0 | - | 4.42 | 55,685 |
| Geography by Picture - H | 0 | - | 4.50 | 58,294 |
| Geography by Picture - N | 0 | - | 4.45 | 42,262 |
| Geography by Picture - R | 0 | - | 4.56 | 41,080 |
| Geography by Picture - T | 0 | - | 4.54 | 57,912 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,849 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,400 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,025 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,258 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,632,481 |
| Countries in World War I | 0 | - | 4.88 | 228,556 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,489 |
| Hindu Countries | 0 | - | 4.86 | 50,337 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,611 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,195 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,243 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,942 |
| Satellite Images #1 | 0 | - | 4.47 | 129,504 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,424 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,008 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,027 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,054 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,230 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,529 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,373 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,020 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.82 | 62,038 |
| Boundary Waters | 0 | - | 4.92 | 88,611 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,280 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,341 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,825 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,674 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,633 |
| World Capitals Quiz | 0 | - | 5.00 | 5,087,115 |
| Landlocked Countries | 0 | - | 4.99 | 422,610 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 46,803 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 578,959 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,783,192 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,115 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,723,336 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,393 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,457 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,187 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,420 |
| Geography by Picture - A | 0 | - | 4.39 | 60,334 |
| Geography by Picture - D | 0 | - | 4.15 | 45,716 |
| Geography by Picture - F | 0 | - | 4.31 | 51,082 |
| Geography by Picture - G | 0 | - | 4.39 | 48,012 |
| Geography by Picture - J | 0 | - | 4.16 | 38,520 |
| Geography by Picture - K | 0 | - | 4.29 | 33,180 |
| Geography by Picture - C | 0 | - | 4.31 | 57,141 |
| Geography by Picture - L | 0 | - | 4.37 | 59,056 |
