| All Country Flags of the World | 0 | - | 5.00 | 3,699,337 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,265 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,900 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,549 |
| Flags with Crescents | 0 | - | 4.98 | 170,914 |
| Country Flag Trivia | 0 | - | 4.81 | 57,756 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,579 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,155 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,255 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,726 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,320 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,940 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,010 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,517 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,984 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,298 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,001 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,265 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,176 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,101 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,117 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,089 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,157 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,949 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,569 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,994 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,985 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,394 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,773 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,920 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,272 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,485 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,558 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,503 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,724 |
| Flags of North and South America | 0 | - | 4.99 | 375,856 |
| Flags to Languages | 0 | - | 4.95 | 174,259 |
| Former Flags | 0 | - | 4.97 | 108,308 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,158 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,896 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,867 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,158 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,063 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,131 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,458 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,111 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,197 |
| Flag Maths | 0 | - | 4.61 | 57,815 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,562 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,032 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,166 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,966 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,596 |
| World Coats of Arms | 0 | - | 4.99 | 64,938 |
| Similar Flags #1 | 0 | - | 4.75 | 130,545 |
| Similar Flags #2 | 0 | - | 4.74 | 137,854 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,268 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,655 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,419 |
| Emoji Flags | 0 | - | 4.35 | 44,238 |
| Countries by Road Signs | 0 | - | 4.98 | 54,225 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,936 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,445 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,989 |
| Select the World Flags | 0 | - | 4.28 | 37,916 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,369 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,084 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,677 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,384 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,443 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,075 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,653 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,150 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,999 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,138 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,584 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,720 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,217 |
| Pixelated World Map | 0 | - | 5.00 | 143,891 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,728 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,537 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,997 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,354 |
| Boundary Waters | 0 | - | 4.92 | 88,690 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,345 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,507 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,094 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,810 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,811 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,025 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,309 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,748 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,270 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,628 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,184 |
| Geography by Picture - B | 0 | - | 4.42 | 55,736 |
| Geography by Picture - H | 0 | - | 4.50 | 58,338 |
| Geography by Picture - N | 0 | - | 4.45 | 42,306 |
| Geography by Picture - R | 0 | - | 4.56 | 41,112 |
| Geography by Picture - T | 0 | - | 4.54 | 57,958 |
| Flags of Oceania | 0 | - | 5.00 | 261,816 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,199 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,323 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,279 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,638 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,280 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,750,694 |
| Flags of WW1 | 0 | - | 4.60 | 38,601 |
| Landlocked Countries | 0 | - | 4.99 | 424,076 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,150 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,699 |
| Satellite Images #1 | 0 | - | 4.47 | 129,596 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,495 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,077 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,099 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,101 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,440 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,870 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,830 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,241 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,747 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,766 |
| World Capitals Quiz | 0 | - | 5.00 | 5,096,388 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,447 |
| Himalayan Countries | 0 | - | 4.94 | 139,618 |
| Andean Countries | 0 | - | 4.94 | 85,105 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,293 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,524 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,861 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,152 |
| Danube Countries | 0 | - | 4.97 | 72,233 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,351 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,657 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,761 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,259 |
| European Landlocked Countries | 0 | - | 4.99 | 147,407 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,015 |
| Countries with the Most Species | 0 | - | 4.99 | 103,440 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,143 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,691 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,802 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,715 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,446 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,864 |
| Countries in the Alps | 0 | - | 4.87 | 118,514 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,160 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,496 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,826 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,831 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,761 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,107 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,953 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,695 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,317 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,030 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,770 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,638 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,407 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,649 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,740 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,418 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,488 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,363 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,425 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,014 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,722 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,397 |
| Largest Countries By Category | 0 | - | 4.97 | 158,577 |
| Countries by Countries | 0 | - | 4.96 | 63,460 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,033 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,355 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,630 |
| Merged Country Flags | 0 | - | 4.88 | 107,188 |
| All Countries by Population With a Map | 0 | - | 4.99 | 110,354 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 99,225 |
| Colourful Countries of the World | 0 | - | 4.99 | 60,009 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,929 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,793,585 |
| Merged Countries #2 | 0 | - | 4.96 | 99,746 |
| Merged Countries #6 | 0 | - | 4.90 | 73,686 |
| Merged Countries #7 | 0 | - | 4.93 | 83,028 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,292 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,936 |
| Geography by Picture - A | 0 | - | 4.39 | 60,386 |
| Geography by Picture - D | 0 | - | 4.15 | 45,753 |
| Geography by Picture - F | 0 | - | 4.31 | 51,132 |
| Geography by Picture - G | 0 | - | 4.39 | 48,048 |
| Geography by Picture - J | 0 | - | 4.16 | 38,562 |
| Geography by Picture - K | 0 | - | 4.29 | 33,218 |
| Geography by Picture - C | 0 | - | 4.31 | 57,189 |
| Geography by Picture - L | 0 | - | 4.37 | 59,094 |
| Geography by Picture - M | 0 | - | 4.14 | 40,550 |
| Geography by Picture - P | 0 | - | 4.24 | 42,530 |
| Geography by Picture - S | 0 | - | 4.38 | 47,146 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,683 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,579 |
| All 10m+ First-Level Country Subdivisions | 0 | - | 4.98 | 35,077 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,631 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,452 |
| Longest International Borders | 0 | - | 4.99 | 265,556 |
