| All Country Flags of the World | 0 | - | 5.00 | 3,696,812 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,542,902 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,707 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,389 |
| Flags with Crescents | 0 | - | 4.98 | 170,838 |
| Country Flag Trivia | 0 | - | 4.81 | 57,705 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,534 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,113 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,206 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,706 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,731 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,292 |
| Flags of North and South America | 0 | - | 4.99 | 375,655 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,857 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,943 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,443 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,940 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,237 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,941 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,195 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,140 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,071 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,075 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,048 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,120 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,917 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,536 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,968 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,975 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,371 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,746 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,886 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,235 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,444 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,523 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,467 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,706 |
| Flags to Languages | 0 | - | 4.95 | 174,222 |
| Former Flags | 0 | - | 4.97 | 108,263 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,149 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,884 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,843 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,558 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,625 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,151 |
| 20 Random Country Flags | 0 | - | 4.99 | 616,707 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,116 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,444 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,068 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,159 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,526 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,014 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,158 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,208 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,954 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,588 |
| World Coats of Arms | 0 | - | 4.99 | 64,897 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,549 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,366 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,072 |
| Flag Maths | 0 | - | 4.61 | 57,813 |
| Similar Flags #1 | 0 | - | 4.75 | 130,511 |
| Similar Flags #2 | 0 | - | 4.74 | 137,820 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,429 |
| Emoji Flags | 0 | - | 4.35 | 44,226 |
| Countries by Road Signs | 0 | - | 4.98 | 54,205 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,904 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,917 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,350 |
| Select the World Flags | 0 | - | 4.27 | 37,905 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,433 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,223 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,663 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,362 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,433 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,063 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,638 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,844 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,096 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,988 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,125 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,525 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,100 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,910 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,255 |
| Pixelated World Map | 0 | - | 5.00 | 143,867 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,803 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,409 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,824 |
| Flags of WW1 | 0 | - | 4.60 | 38,592 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,969 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,347 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,953 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,296 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,139 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 37,308 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,368 |
| World Capitals in the Answer | 0 | - | 4.94 | 77,474 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,109 |
| Orthodox Countries | 0 | - | 4.92 | 132,541 |
| Battle to Country | 0 | - | 4.91 | 53,732 |
| Monarchies of Europe | 0 | - | 4.90 | 98,588 |
| Monarchies of Asia | 0 | - | 4.97 | 71,367 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 67,426 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,156 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,270 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,737 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,251 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,618 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,177 |
| Flags of Oceania | 0 | - | 5.00 | 261,648 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,133 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,306 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,263 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,612 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,247 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 234,993 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,321 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 110,692 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,889 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 97,396 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,429 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,812 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,074 |
| Click a Valid World Capital A-Z | 0 | - | 4.83 | 91,115 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,431 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,189 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,026 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 136,425 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,593 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 535,499 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,571 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,515 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,614 |
| Geography by Picture - B | 0 | - | 4.42 | 55,727 |
| Geography by Picture - H | 0 | - | 4.50 | 58,330 |
| Geography by Picture - N | 0 | - | 4.45 | 42,298 |
| Geography by Picture - R | 0 | - | 4.56 | 41,106 |
| Geography by Picture - T | 0 | - | 4.54 | 57,951 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,868 |
| Boundary Waters | 0 | - | 4.92 | 88,668 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,331 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,479 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,046 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,790 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,791 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,713 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,175 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,441 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,707 |
| Name a World Capital A-Z | 0 | - | 5.00 | 176,742 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,731,101 |
| Countries in World War I | 0 | - | 4.88 | 228,771 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,744 |
| Hindu Countries | 0 | - | 4.87 | 50,432 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 90,743 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,687 |
| Countries Mentioned in the Wikipedia Page of Germany | 0 | - | 4.82 | 64,978 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,851 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,632 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 150,276 |
| Merged Countries #2 | 0 | - | 4.96 | 99,662 |
| Merged Countries #6 | 0 | - | 4.90 | 73,655 |
| Merged Countries #7 | 0 | - | 4.93 | 83,001 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,100 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 57,205 |
| Satellite Images #1 | 0 | - | 4.47 | 129,584 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,481 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,062 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,084 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,095 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,417 |
| Star Wars Quotes | 0 | - | 4.86 | 185,589 |
| World Capitals Quiz | 0 | - | 5.00 | 5,094,663 |
| Landlocked Countries | 0 | - | 4.99 | 423,807 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 47,041 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 583,233 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 86,347 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,791,997 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,377 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,137 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,726,089 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,053 |
| Geography by Picture - A | 0 | - | 4.39 | 60,380 |
| Geography by Picture - D | 0 | - | 4.15 | 45,748 |
| Geography by Picture - F | 0 | - | 4.31 | 51,127 |
| Geography by Picture - G | 0 | - | 4.39 | 48,045 |
| Geography by Picture - J | 0 | - | 4.16 | 38,556 |
| Geography by Picture - K | 0 | - | 4.29 | 33,214 |
| Geography by Picture - C | 0 | - | 4.31 | 57,182 |
| Geography by Picture - L | 0 | - | 4.37 | 59,087 |
| Geography by Picture - M | 0 | - | 4.14 | 40,545 |
| Geography by Picture - P | 0 | - | 4.24 | 42,527 |
| Geography by Picture - S | 0 | - | 4.38 | 47,139 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,791 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 71,105 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 395,301 |
| European Cities by Picture #1 | 0 | - | 4.30 | 27,141 |
| Airline Logos | 0 | - | 4.45 | 141,215 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,629 |
