| All Country Flags of the World | 0 | - | 5.00 | 3,593,637 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,523 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,579 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,079 |
| Flags with Crescents | 0 | - | 4.98 | 167,248 |
| Country Flag Trivia | 0 | - | 4.81 | 55,765 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,215 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,332 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,715 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,330 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,260 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,922 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,621 |
| Flags of North and South America | 0 | - | 4.99 | 365,348 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,235 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,213 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,890 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,392 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,304 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,834 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,416 |
| Flags that are Red & White Only | 0 | - | 4.97 | 146,132 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,210 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,086 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,375 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,356 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,024 |
| Country Flags with the Most Blue | 0 | - | 4.87 | 91,512 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,591 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,409 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,103 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,663 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,168 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,788 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,572 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,654 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,249 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,552 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,590 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,810 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,311 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,251 |
| World Coats of Arms | 0 | - | 4.99 | 63,780 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,954 |
| Flags to Languages | 0 | - | 4.95 | 172,325 |
| Former Flags | 0 | - | 4.97 | 106,519 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,526 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,136 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,642 |
| Countries with the Most Catholics | 0 | - | 4.90 | 107,864 |
| Orthodox Countries | 0 | - | 4.91 | 130,245 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,419 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,401 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 65,946 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,151 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,457 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,647 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 111,966 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,520 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,355 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,309 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,345 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,201 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,511 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,208 |
| Countries by Road Signs | 0 | - | 4.98 | 52,969 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,943 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,048 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,643 |
| Flag Maths | 0 | - | 4.78 | 57,663 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,942 |
| Majority Muslim Countries | 0 | - | 4.98 | 367,966 |
| Top Five Countries by Religion | 0 | - | 4.93 | 168,747 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,856 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,401 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 70,980 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,628 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,760 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,648 |
| Country Flags with the Southern Cross | 0 | - | 4.78 | 61,276 |
| Similar Flags #1 | 0 | - | 4.74 | 128,954 |
| Similar Flags #2 | 0 | - | 4.74 | 136,210 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 39,760 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,188 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,291 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,932 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,330 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,134 |
| Catholic Countries | 0 | - | 4.78 | 213,513 |
| Pixelated World Map | 0 | - | 5.00 | 141,761 |
| Buddhist Countries | 0 | - | 4.96 | 142,816 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,224 |
| Emoji Flags | 0 | - | 4.35 | 43,784 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,600 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,902 |
| Biblical Geography | 0 | - | 4.40 | 66,903 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.69 | 107,246 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,180 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,882 |
| Divided World City Name Puzzle #1 | 0 | - | 4.88 | 48,032 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,421 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 94,650 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,205 |
| Battle to Country | 0 | - | 4.91 | 52,423 |
| Monarchies of Europe | 0 | - | 4.90 | 97,197 |
| Monarchies of Asia | 0 | - | 4.97 | 70,531 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,376 |
| Countries with the Most Muslims | 0 | - | 4.95 | 159,146 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,009 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,508 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,119 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,891 |
| Flags of Oceania | 0 | - | 5.00 | 254,566 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,620 |
| Select the World Flags | 0 | - | 4.27 | 37,356 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,342 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,937 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,273 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,627 |
| Catholic Countries in Europe | 0 | - | 4.83 | 94,102 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 230,187 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 164,887 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 108,538 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 90,953 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 95,425 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 37,661 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,148 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 131,345 |
| Name a World Capital A-Z | 0 | - | 5.00 | 174,785 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 79,380 |
| Click a Valid World Capital A-Z | 0 | - | 4.83 | 88,925 |
| European Capital Superlatives - Top 2 | 0 | - | 4.94 | 80,603 |
| African Countries with the Most Christians | 0 | - | 4.94 | 74,772 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,071 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,281 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,145 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 90,995 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,835 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 520,184 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,160 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,014 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,443 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,038 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,123 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,032 |
| Merged Countries #2 | 0 | - | 4.96 | 98,381 |
| Merged Countries #6 | 0 | - | 4.91 | 72,635 |
| Merged Countries #7 | 0 | - | 4.93 | 81,879 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,036 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,684 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 55,834 |
| Geography by Picture - B | 0 | - | 4.42 | 55,383 |
| Geography by Picture - H | 0 | - | 4.49 | 58,016 |
| Geography by Picture - N | 0 | - | 4.45 | 42,030 |
| Geography by Picture - R | 0 | - | 4.55 | 40,862 |
| Geography by Picture - T | 0 | - | 4.54 | 57,647 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,730 |
| Most Guessed U.S. Cities | 0 | - | 4.88 | 104,678 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 71,929 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,839 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,847,718 |
| Countries in World War I | 0 | - | 4.88 | 226,040 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,220 |
| Hindu Countries | 0 | - | 4.85 | 49,440 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 50,982 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,271 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,953 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,950 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,615 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,612 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,774 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,265 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,785 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,166 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,122 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,755 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,643 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,204 |
| Landlocked Countries | 0 | - | 4.99 | 412,840 |
| Sharia Law Countries | 0 | - | 4.48 | 63,309 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,517 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 84,675 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,709,369 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,205 |
| Places by Country - Tile Select | 0 | - | 4.30 | 13,963 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,703,563 |
| Countries Closest to United States A-Z | 0 | - | 4.81 | 117,302 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,600 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,777 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 39,950 |
| Geography by Picture - A | 0 | - | 4.39 | 60,018 |
| Geography by Picture - D | 0 | - | 4.15 | 45,466 |
| Geography by Picture - F | 0 | - | 4.31 | 50,806 |
| Geography by Picture - G | 0 | - | 4.38 | 47,774 |
| Geography by Picture - J | 0 | - | 4.16 | 38,313 |
| Geography by Picture - K | 0 | - | 4.28 | 32,995 |
| Geography by Picture - C | 0 | - | 4.31 | 56,890 |
| Geography by Picture - L | 0 | - | 4.37 | 58,728 |
| Geography by Picture - M | 0 | - | 4.14 | 40,326 |
