| All Country Flags of the World | 0 | - | 5.00 | 3,599,364 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,835 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,153 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,487 |
| Flags with Crescents | 0 | - | 4.98 | 167,470 |
| Country Flag Trivia | 0 | - | 4.81 | 55,878 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,348 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,422 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,848 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,411 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,342 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,990 |
| Flags of North and South America | 0 | - | 4.99 | 366,772 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,313 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,932 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,429 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,650 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,121 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,783 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,310 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,532 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,544 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,906 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,551 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,570 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,319 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,681 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,747 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,538 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,232 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,771 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,237 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,646 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,728 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,353 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,659 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,709 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,934 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,344 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,265 |
| World Coats of Arms | 0 | - | 4.99 | 63,831 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,018 |
| Flags to Languages | 0 | - | 4.95 | 172,435 |
| Former Flags | 0 | - | 4.97 | 106,634 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,600 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,145 |
| Countries With The Most Bird Species | 0 | - | 4.92 | 32,361 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,750 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,532 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,223 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,688 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,065 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,032 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,582 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,469 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,405 |
| Countries by Road Signs | 0 | - | 4.98 | 53,070 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,000 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,982 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,270 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,269 |
| Flag Maths | 0 | - | 4.78 | 57,670 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,580 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,293 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,401 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,333 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,731 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,820 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,018 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,663 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,796 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,667 |
| Similar Flags #1 | 0 | - | 4.74 | 129,054 |
| Similar Flags #2 | 0 | - | 4.74 | 136,318 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,206 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,340 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,967 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,363 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,804 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,216 |
| Pixelated World Map | 0 | - | 5.00 | 142,387 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,371 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,256 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,977 |
| Emoji Flags | 0 | - | 4.35 | 43,804 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,662 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,923 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,456 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,002 |
| Flags of Oceania | 0 | - | 5.00 | 254,995 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,802 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,401 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,037 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,365 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,757 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,246 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,903 |
| European Countries with NO Wolves | 0 | - | 4.56 | 65,529 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,032 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,541 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,141 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,399 |
| Geography by Picture - H | 0 | - | 4.49 | 58,036 |
| Geography by Picture - N | 0 | - | 4.45 | 42,043 |
| Geography by Picture - R | 0 | - | 4.55 | 40,873 |
| Geography by Picture - T | 0 | - | 4.54 | 57,670 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,548 |
| Select the World Flags | 0 | - | 4.27 | 37,391 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,467 |
| National Animals | 0 | - | 4.24 | 89,141 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,770 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,241 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,234 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,813 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,708 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,894,664 |
| Landlocked Countries | 0 | - | 4.99 | 413,314 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,778 |
| Countries with the Most Wild Elephants | 0 | - | 4.63 | 54,606 |
| Animal Populations of Countries | 0 | - | 4.51 | 43,590 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,822 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,136 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,117 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,048 |
| Top 15 Countries with the Most Cows | 0 | - | 4.64 | 92,766 |
| Merged Countries #2 | 0 | - | 4.96 | 98,440 |
| Merged Countries #6 | 0 | - | 4.91 | 72,684 |
| Merged Countries #7 | 0 | - | 4.92 | 81,926 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,357 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,990 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,970 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,636 |
| Bodies of Water by Satellite Image #1 | 0 | - | 4.20 | 71,224 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,639 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,798 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,330 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,144 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,964 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,555 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,906 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,934 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,474 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,450 |
| Himalayan Countries | 0 | - | 4.95 | 135,234 |
| Andean Countries | 0 | - | 4.94 | 82,765 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,177 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,117 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,848 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,551 |
| Danube Countries | 0 | - | 4.97 | 71,047 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,717 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,505 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,402 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,329 |
| European Landlocked Countries | 0 | - | 4.99 | 145,719 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,149 |
| Countries with the Most Species | 0 | - | 4.99 | 95,228 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,292 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,941 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,549 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,922 |
| Countries in the Alps | 0 | - | 4.87 | 116,772 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,527 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,191 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,986 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,393 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,117 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,972 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,535 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,726 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,121 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,024 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,185 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,024 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,420 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,724 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,003 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,612 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,239 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,737 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,105 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,543 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,577 |
| Countries with NO Snakes | 0 | - | 4.51 | 63,503 |
| Largest Countries By Category | 0 | - | 4.97 | 156,703 |
| Countries by Countries | 0 | - | 4.96 | 62,230 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,330 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,952 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,318 |
| Merged Country Flags | 0 | - | 4.88 | 105,982 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,564 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,076 |
| Colourful Countries of the World | 0 | - | 4.99 | 59,030 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,724 |
