| All Country Flags of the World | 0 | - | 5.00 | 3,702,641 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,880 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,217 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,791 |
| Flags with Crescents | 0 | - | 4.98 | 171,024 |
| Country Flag Trivia | 0 | - | 4.81 | 57,811 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,678 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,232 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,345 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,789 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,821 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,360 |
| Flags of North and South America | 0 | - | 4.99 | 376,113 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,040 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,079 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,612 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,031 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,366 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,085 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,371 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,234 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,168 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,177 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,139 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,209 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,989 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,618 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,036 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,006 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,411 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,817 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,949 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,301 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,516 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,598 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,558 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,738 |
| Flags to Languages | 0 | - | 4.95 | 174,323 |
| Former Flags | 0 | - | 4.97 | 108,365 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,178 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,925 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,907 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,620 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,711 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,174 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,494 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,155 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,479 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,168 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,260 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,752 |
| Flag Maths | 0 | - | 4.61 | 57,821 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,638 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,071 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,191 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,343 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,994 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,606 |
| World Coats of Arms | 0 | - | 4.99 | 64,987 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,513 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,102 |
| Similar Flags #1 | 0 | - | 4.75 | 130,606 |
| Similar Flags #2 | 0 | - | 4.74 | 137,904 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,168 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,509 |
| Emoji Flags | 0 | - | 4.35 | 44,250 |
| Countries by Road Signs | 0 | - | 4.98 | 54,252 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,076 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,971 |
| Select the World Flags | 0 | - | 4.28 | 37,937 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,457 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,419 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,745 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,703 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,414 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,466 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,085 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,668 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,915 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,234 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,018 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,150 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,576 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,623 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,653 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,403 |
| Pixelated World Map | 0 | - | 5.00 | 143,943 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,914 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,856 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,141 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,055 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,366 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,179 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,360 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,396 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,531 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,212 |
| Orthodox Countries | 0 | - | 4.92 | 132,641 |
| Battle to Country | 0 | - | 4.91 | 53,818 |
| Monarchies of Europe | 0 | - | 4.90 | 98,704 |
| Monarchies of Asia | 0 | - | 4.97 | 71,420 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 67,496 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,210 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,356 |
| Flags of Oceania | 0 | - | 5.00 | 262,040 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,298 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,355 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,329 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,664 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,328 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,140 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,337 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,767 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,300 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,645 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,201 |
| Geography by Picture - B | 0 | - | 4.42 | 55,747 |
| Geography by Picture - H | 0 | - | 4.50 | 58,345 |
| Geography by Picture - N | 0 | - | 4.45 | 42,319 |
| Geography by Picture - R | 0 | - | 4.56 | 41,122 |
| Geography by Picture - T | 0 | - | 4.54 | 57,966 |
| Flags of WW1 | 0 | - | 4.60 | 38,623 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,273 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,540 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,855 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,001 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,501 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,477 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,951 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,174 |
| Click a Valid World Capital A-Z | 0 | - | 4.84 | 91,214 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,476 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,387 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,150 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,754 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,685 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 536,398 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,687 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,634 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,670 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,884 |
| Boundary Waters | 0 | - | 4.92 | 88,709 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,366 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,561 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,158 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,842 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,845 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,753 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,851 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,777,977 |
| Landlocked Countries | 0 | - | 4.99 | 424,462 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,859 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 585,048 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,726 |
| Countries Mentioned in the Wikipedia Page of Germany | 0 | - | 4.82 | 65,093 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 91,915 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,807 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,733 |
| Merged Countries #2 | 0 | - | 4.96 | 99,785 |
| Merged Countries #6 | 0 | - | 4.90 | 73,725 |
| Merged Countries #7 | 0 | - | 4.93 | 83,063 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,194 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 57,261 |
| Satellite Images #1 | 0 | - | 4.47 | 129,805 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,569 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,134 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,149 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,145 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,466 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,854 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,284 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,805 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,838 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,816 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,284 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,532 |
| World Capitals Quiz | 0 | - | 5.00 | 5,098,792 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,609 |
| Himalayan Countries | 0 | - | 4.94 | 139,751 |
| Andean Countries | 0 | - | 4.94 | 85,176 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,359 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,619 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,924 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,218 |
| Countries in World War I | 0 | - | 4.88 | 228,928 |
| Danube Countries | 0 | - | 4.97 | 72,271 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,404 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,699 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,846 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,351 |
| European Landlocked Countries | 0 | - | 4.99 | 147,449 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,076 |
| Countries with the Most Species | 0 | - | 4.99 | 103,477 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,869 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,218 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,709 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,820 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,739 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,472 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,901 |
