| All Country Flags of the World | 0 | - | 5.00 | 3,627,915 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,926 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,613 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,236 |
| Flags with Crescents | 0 | - | 4.98 | 168,355 |
| Country Flag Trivia | 0 | - | 4.81 | 56,353 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,922 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,869 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,476 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,803 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,686 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,349 |
| Flags of North and South America | 0 | - | 4.99 | 369,974 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,776 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,125 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,614 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,771 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,512 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,278 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,261 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,048 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,035 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,847 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,078 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,168 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,937 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,633 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,115 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,467 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,857 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,018 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,006 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,313 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,502 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,640 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,211 |
| Flags to Languages | 0 | - | 4.95 | 172,975 |
| Former Flags | 0 | - | 4.97 | 107,145 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,764 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,188 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,081 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,381 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,593 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,226 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,818 |
| 20 Random Country Flags | 0 | - | 4.99 | 607,968 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,330 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,866 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,926 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,950 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,272 |
| Flag Maths | 0 | - | 4.64 | 57,701 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,894 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,172 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,600 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,901 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,530 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,374 |
| World Coats of Arms | 0 | - | 4.99 | 64,120 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,522 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,717 |
| Similar Flags #1 | 0 | - | 4.74 | 129,463 |
| Similar Flags #2 | 0 | - | 4.74 | 136,761 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,514 |
| Emoji Flags | 0 | - | 4.35 | 43,915 |
| Countries by Road Signs | 0 | - | 4.98 | 53,392 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 23,384 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,236 |
| Select the World Flags | 0 | - | 4.27 | 37,548 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,096 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,548 |
| Name a Valid Country Flag | 0 | - | 4.67 | 75,178 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,180 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,834 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,979 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,782 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,339 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 60,988 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,619 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,119 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,555 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,707 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,111 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,871 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,230 |
| Pixelated World Map | 0 | - | 5.00 | 142,848 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,458 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,403 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,653 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,032 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,058 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,318 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,653 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,889 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,595 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,606 |
| Orthodox Countries | 0 | - | 4.92 | 130,884 |
| Battle to Country | 0 | - | 4.91 | 52,882 |
| Monarchies of Europe | 0 | - | 4.90 | 97,676 |
| Monarchies of Asia | 0 | - | 4.97 | 70,816 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 66,465 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,611 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,057 |
| Flags of Oceania | 0 | - | 5.00 | 256,864 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,457 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,693 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,389 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,761 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,216 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,593 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,970 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,145 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,708 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,236 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,982 |
| Geography by Picture - B | 0 | - | 4.42 | 55,493 |
| Geography by Picture - H | 0 | - | 4.50 | 58,110 |
| Geography by Picture - N | 0 | - | 4.45 | 42,107 |
| Geography by Picture - R | 0 | - | 4.56 | 40,932 |
| Geography by Picture - T | 0 | - | 4.54 | 57,745 |
| Flags of WW1 | 0 | - | 4.60 | 38,144 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,694 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,028 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,257 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 91,565 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,008 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 37,914 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,061 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,913 |
| Click a Valid World Capital A-Z | 0 | - | 4.83 | 89,718 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,895 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,024 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,745 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 119,203 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,432 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 525,343 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,605 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,457 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,674 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,782 |
| Boundary Waters | 0 | - | 4.92 | 88,213 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,950 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,628 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,782 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,100 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,012 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,340 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,426 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,146,177 |
| Landlocked Countries | 0 | - | 4.99 | 416,446 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,439 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 561,292 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,261 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 81,738 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,499 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 148,740 |
| Merged Countries #2 | 0 | - | 4.96 | 98,693 |
| Merged Countries #6 | 0 | - | 4.90 | 72,946 |
| Merged Countries #7 | 0 | - | 4.93 | 82,201 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,395 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 56,295 |
| Satellite Images #1 | 0 | - | 4.46 | 129,167 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,121 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,768 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,760 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,883 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,627 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,355 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,321 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,256 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,509 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,411 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,384 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,333 |
| World Capitals Quiz | 0 | - | 5.00 | 5,049,051 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,829 |
| Himalayan Countries | 0 | - | 4.95 | 136,417 |
| Andean Countries | 0 | - | 4.95 | 83,436 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,709 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,931 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,389 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,989 |
| Countries in World War I | 0 | - | 4.88 | 227,374 |
| Danube Countries | 0 | - | 4.97 | 71,376 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,180 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,834 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,110 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,067 |
| European Landlocked Countries | 0 | - | 4.99 | 146,108 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,723 |
| Countries with the Most Species | 0 | - | 4.99 | 101,013 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,207 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,864 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,317 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,498 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,794 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,165 |
| Countries in the Alps | 0 | - | 4.86 | 117,303 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,878 |
