| All Country Flags of the World | 0 | - | 5.00 | 3,645,652 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,534,034 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,091,309 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,370 |
| Flags with Crescents | 0 | - | 4.98 | 168,968 |
| Country Flag Trivia | 0 | - | 4.81 | 56,723 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,345 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,194 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 86,967 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,065 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,970 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,574 |
| Flags of North and South America | 0 | - | 4.99 | 371,673 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,224 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,502 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,013 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,012 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,939 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,621 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,720 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,280 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,268 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,152 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,299 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,390 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,156 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,860 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,323 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,603 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,983 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,185 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,228 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,537 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,752 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,851 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,335 |
| Flags to Languages | 0 | - | 4.95 | 173,328 |
| Former Flags | 0 | - | 4.97 | 107,424 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,849 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,369 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,269 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,841 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,492 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,633 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,880 |
| 20 Random Country Flags | 0 | - | 4.99 | 610,120 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,527 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,994 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,236 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,243 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,209 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,325 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,706 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,219 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,646 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,433 |
| World Coats of Arms | 0 | - | 4.99 | 64,304 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,872 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,936 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,815 |
| Flag Maths | 0 | - | 4.64 | 57,740 |
| Similar Flags #1 | 0 | - | 4.75 | 129,727 |
| Similar Flags #2 | 0 | - | 4.74 | 137,038 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,767 |
| Emoji Flags | 0 | - | 4.35 | 43,995 |
| Countries by Road Signs | 0 | - | 4.98 | 53,605 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,215 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,414 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,730 |
| Select the World Flags | 0 | - | 4.27 | 37,653 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,178 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,444 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,278 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,953 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,058 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,843 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,409 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,187 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,796 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,212 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,679 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,918 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,239,255 |
| Flags of Asia Quiz | 0 | - | 4.99 | 611,134 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,701 |
| Pixelated World Map | 0 | - | 5.00 | 143,106 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,807 |
| Flags of Africa Quiz | 0 | - | 5.00 | 468,872 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,504 |
| Flags of WW1 | 0 | - | 4.60 | 38,268 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,260 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,133 |
| Cities by Satellite #1 | 0 | - | 4.37 | 80,829 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,020 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,587 |
| Divided World City Name Puzzle #2 | 0 | - | 4.83 | 36,862 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,042 |
| World Capitals in the Answer | 0 | - | 4.94 | 76,805 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,009 |
| Orthodox Countries | 0 | - | 4.92 | 131,216 |
| Battle to Country | 0 | - | 4.91 | 53,104 |
| Monarchies of Europe | 0 | - | 4.90 | 97,914 |
| Monarchies of Asia | 0 | - | 4.97 | 70,950 |
| Countries Mentioned in the Bible | 0 | - | 4.96 | 66,758 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,756 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,400 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,211 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,837 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,294 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,021 |
| Flags of Oceania | 0 | - | 5.00 | 257,993 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,864 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,852 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,615 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,978 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,466 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 232,484 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 166,578 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.85 | 109,628 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 92,026 |
| Category Elimination - Asian Geography #2 | 0 | - | 4.94 | 96,305 |
| Largest City on Every Continent A-Z | 0 | - | 4.97 | 38,042 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,452 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 80,206 |
| Click a Valid World Capital A-Z | 0 | - | 4.83 | 90,075 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,026 |
| African Countries with the Most Muslims | 0 | - | 4.80 | 100,765 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 198,678 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,148 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 126,367 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,792 |
| Click a Valid Country A-Z | 0 | - | 4.97 | 528,105 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,837 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,739 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,799 |
| Geography by Picture - B | 0 | - | 4.42 | 55,552 |
| Geography by Picture - H | 0 | - | 4.50 | 58,173 |
| Geography by Picture - N | 0 | - | 4.45 | 42,160 |
| Geography by Picture - R | 0 | - | 4.56 | 40,979 |
| Geography by Picture - T | 0 | - | 4.54 | 57,793 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,802 |
| Boundary Waters | 0 | - | 4.92 | 88,355 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,058 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,873 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 62,104 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,302 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,234 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 105,716 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.84 | 72,614 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,656 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,431 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,797 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,299,480 |
| Countries in World War I | 0 | - | 4.88 | 227,771 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,644 |
| Hindu Countries | 0 | - | 4.86 | 49,983 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,717 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,373 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,187 |
| Top 10 Richest Countries in Africa | 0 | - | 4.86 | 75,892 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,253 |
| Merged Countries #2 | 0 | - | 4.96 | 98,868 |
| Merged Countries #6 | 0 | - | 4.90 | 73,098 |
| Merged Countries #7 | 0 | - | 4.93 | 82,419 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,632 |
| Countries in a Penrose Tiling of the World Map | 0 | - | 4.95 | 56,508 |
| Satellite Images #1 | 0 | - | 4.46 | 129,272 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,226 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,848 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,842 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,925 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,808 |
| Star Wars Quotes | 0 | - | 4.85 | 183,257 |
| World Capitals Quiz | 0 | - | 5.00 | 5,060,902 |
| Landlocked Countries | 0 | - | 4.99 | 418,366 |
| Countries with the Most Cathedrals | 0 | - | 4.51 | 45,212 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 566,768 |
| Modern-Day Axis-Occupied Countries of WWII on a Map | 0 | - | 4.99 | 85,619 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,753,748 |
| Countries with the Most Hindus | 0 | - | 4.90 | 122,807 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,047 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,715,125 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,540 |
| Geography by Picture - A | 0 | - | 4.39 | 60,189 |
| Geography by Picture - D | 0 | - | 4.15 | 45,603 |
| Geography by Picture - F | 0 | - | 4.31 | 50,939 |
| Geography by Picture - G | 0 | - | 4.38 | 47,905 |
| Geography by Picture - J | 0 | - | 4.16 | 38,424 |
| Geography by Picture - K | 0 | - | 4.29 | 33,091 |
| Geography by Picture - C | 0 | - | 4.31 | 57,026 |
| Geography by Picture - L | 0 | - | 4.37 | 58,896 |
| Geography by Picture - M | 0 | - | 4.14 | 40,415 |
| Geography by Picture - P | 0 | - | 4.24 | 42,392 |
| Geography by Picture - S | 0 | - | 4.38 | 47,004 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,229 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,538 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 394,103 |
| European Cities by Picture #1 | 0 | - | 4.29 | 26,990 |
| Airline Logos | 0 | - | 4.45 | 140,495 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,246 |
