| All Country Flags of the World | 0 | - | 5.00 | 3,718,362 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,700 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,603 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,733 |
| Flags with Crescents | 0 | - | 4.98 | 171,501 |
| Country Flag Trivia | 0 | - | 4.82 | 58,166 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,016 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,516 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,716 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,040 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,064 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,545 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,452 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,452 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,028 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,259 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,699 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,419 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,768 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,478 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,418 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,426 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,353 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,418 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,204 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,804 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,217 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,143 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,524 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,976 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,114 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,465 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,717 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,786 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,755 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,811 |
| Flags of North and South America | 0 | - | 4.99 | 377,419 |
| Flags to Languages | 0 | - | 4.95 | 174,589 |
| Former Flags | 0 | - | 4.97 | 108,675 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,264 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,069 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,051 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,792 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,247 |
| 20 Random Country Flags | 0 | - | 4.99 | 619,632 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,320 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,634 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,433 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,530 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,213 |
| Flag Maths | 0 | - | 4.61 | 57,856 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,933 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,220 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,295 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,090 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,658 |
| World Coats of Arms | 0 | - | 4.99 | 65,232 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,651 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,912 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,808 |
| Similar Flags #1 | 0 | - | 4.75 | 130,861 |
| Similar Flags #2 | 0 | - | 4.74 | 138,124 |
| Emoji Flags | 0 | - | 4.35 | 44,302 |
| Countries by Road Signs | 0 | - | 4.98 | 54,392 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,191 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,561 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,490 |
| Select the World Flags | 0 | - | 4.28 | 38,011 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,597 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,186 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,056 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,802 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,516 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,560 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,147 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,725 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,463 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,082 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,233 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,425 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,010 |
| Pixelated World Map | 0 | - | 5.00 | 144,152 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 62,104 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,259 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,732 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,939 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,247 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,438 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,500 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,437 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,816 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,408 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,715 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,243 |
| Geography by Picture - B | 0 | - | 4.42 | 55,801 |
| Geography by Picture - H | 0 | - | 4.50 | 58,405 |
| Geography by Picture - N | 0 | - | 4.45 | 42,363 |
| Geography by Picture - R | 0 | - | 4.56 | 41,167 |
| Geography by Picture - T | 0 | - | 4.54 | 58,021 |
| Flags of Oceania | 0 | - | 5.00 | 263,032 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,689 |
| Flags of WW1 | 0 | - | 4.60 | 38,730 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,537 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,499 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,813 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,527 |
| Boundary Waters | 0 | - | 4.92 | 88,796 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,430 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,757 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,411 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,005 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,021 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,918,269 |
| Landlocked Countries | 0 | - | 4.99 | 426,510 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,953 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,824 |
| Satellite Images #1 | 0 | - | 4.46 | 130,028 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,720 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,419 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,269 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,243 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,609 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,903 |
| World Capitals Quiz | 0 | - | 5.00 | 5,109,415 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,710 |
| Merged Countries #2 | 0 | - | 4.96 | 99,912 |
| Merged Countries #4 | 0 | - | 4.81 | 94,154 |
| Merged Countries #6 | 0 | - | 4.90 | 73,848 |
| Merged Countries #7 | 0 | - | 4.93 | 83,180 |
| Geography by Picture - A | 0 | - | 4.39 | 60,454 |
| Geography by Picture - D | 0 | - | 4.15 | 45,800 |
| Geography by Picture - F | 0 | - | 4.31 | 51,203 |
| Geography by Picture - G | 0 | - | 4.39 | 48,096 |
| Geography by Picture - J | 0 | - | 4.16 | 38,615 |
| Geography by Picture - K | 0 | - | 4.29 | 33,264 |
| Geography by Picture - C | 0 | - | 4.31 | 57,254 |
| Geography by Picture - L | 0 | - | 4.37 | 59,154 |
| Geography by Picture - M | 0 | - | 4.14 | 40,596 |
| Geography by Picture - P | 0 | - | 4.24 | 42,582 |
| Geography by Picture - S | 0 | - | 4.38 | 47,193 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,530 |
| Islands by Picture | 0 | - | 4.28 | 107,865 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,950 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,447 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,057 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,087 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,957 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,741 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,712 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,841 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,985 |
| Island Countries | 0 | - | 4.99 | 712,749 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,533 |
| Himalayan Countries | 0 | - | 4.93 | 140,470 |
| Andean Countries | 0 | - | 4.94 | 85,609 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,744 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,207 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,310 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,542 |
| Danube Countries | 0 | - | 4.97 | 72,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,676 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,899 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,259 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,732 |
| European Landlocked Countries | 0 | - | 4.99 | 147,666 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,394 |
| Countries with the Most Species | 0 | - | 4.99 | 103,604 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,505 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,790 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,911 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,876 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,615 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,065 |
| Countries in the Alps | 0 | - | 4.87 | 118,855 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,786 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,986 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,009 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,090 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,038 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,319 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,469 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,920 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,462 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,232 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,913 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,780 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,606 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,847 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,947 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,980 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,654 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,504 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,742 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,944 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,294 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,550 |
| Largest Countries By Category | 0 | - | 4.97 | 158,947 |
| Countries by Countries | 0 | - | 4.96 | 63,706 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,328 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,425 |
