| All Country Flags of the World | 0 | - | 5.00 | 3,261,996 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,446,763 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,046,963 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 700,967 |
| Flags with Crescents | 0 | - | 4.98 | 154,783 |
| Country Flag Trivia | 0 | - | 4.82 | 50,060 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 93,745 |
| Country Flags with the Union Jack | 0 | - | 4.81 | 62,001 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 76,059 |
| Flag Maths | 0 | - | 4.92 | 54,013 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 46,890 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 136,155 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 129,002 |
| Countries by Partial Flag Images #3 | 0 | - | 4.99 | 95,876 |
| Flags with the Most Stars | 0 | - | 4.91 | 114,159 |
| Flags that are Red & White Only | 0 | - | 4.96 | 136,685 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 134,077 |
| Flags of the Countries with Four Letters | 0 | - | 4.93 | 44,110 |
| Four Countries with Similar Flags #2 | 0 | - | 4.89 | 39,898 |
| Four Countries with Similar Flags #1 | 0 | - | 4.96 | 47,993 |
| Country Flags with the Most Red | 0 | - | 4.97 | 98,686 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 84,660 |
| Country Flags with the Most Green | 0 | - | 4.96 | 92,070 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 86,889 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 92,586 |
| Country Flags with the Most Black | 0 | - | 4.94 | 90,958 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.94 | 64,159 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.93 | 46,451 |
| Country Flags Slideshow | 0 | - | 4.90 | 42,551 |
| Countries by Partial Flag Images #2 | 0 | - | 4.96 | 86,297 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 66,899 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 52,769 |
| Countries by Partial Flag Images #6 | 0 | - | 4.91 | 32,159 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 84,558 |
| Flags of North and South America Quiz | 0 | - | 4.99 | 331,321 |
| Flags to Languages | 0 | - | 4.95 | 165,276 |
| Former Flags | 0 | - | 4.98 | 100,311 |
| Country Flags With Blue Removed | 0 | - | 4.90 | 38,781 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.92 | 28,665 |
| Random Flag to Country | 0 | - | 4.99 | 542,729 |
| Countries by Bordering Flags #1 | 0 | - | 4.92 | 97,707 |
| Countries by Bordering Flags #2 | 0 | - | 4.87 | 78,483 |
| Flags of the Mediterranean | 0 | - | 4.94 | 129,940 |
| Random Flags Quiz | 0 | - | 4.41 | 267,066 |
| Countries by Satellite Image #1 | 0 | - | 4.88 | 136,777 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 78,749 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.82 | 46,387 |
| Countries by Coat of Arms #1 | 0 | - | 4.95 | 60,430 |
| World Coats of Arms | 0 | - | 4.99 | 59,365 |
| Category Elimination - Country Flags #1 | 0 | - | 4.97 | 133,634 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 46,779 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 160,271 |
| Country Flags with the Southern Cross | 0 | - | 4.71 | 53,773 |
| Similar Flags #1 | 0 | - | 4.70 | 116,202 |
| Similar Flags #2 | 0 | - | 4.79 | 118,822 |
| Emoji Flags | 0 | - | 4.35 | 42,244 |
| Countries by Road Signs | 0 | - | 4.98 | 48,882 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 57,307 |
| Islands by Shape #2 | 0 | - | 4.87 | 46,698 |
| Select the World Flags | 0 | - | 4.28 | 35,422 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.75 | 24,951 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 70,842 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.62 | 56,364 |
| Name a Valid Country Flag | 0 | - | 4.64 | 68,921 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.81 | 90,351 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 68,579 |
| Countries by Satellite Image #2 | 0 | - | 4.78 | 67,003 |
| Countries by Satellite Image #4 | 0 | - | 4.62 | 64,534 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.56 | 45,262 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 42,731 |
| Countries by Coat of Arms #2 | 0 | - | 4.75 | 33,189 |
| Countries by Picture #1 | 0 | - | 4.52 | 94,174 |
| Countries by Picture #3 | 0 | - | 4.52 | 56,805 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 44,862 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,119,779 |
| Flags of Asia Quiz | 0 | - | 4.99 | 561,289 |
| Pixelated World Map | 0 | - | 5.00 | 135,498 |
| Flags of Africa Quiz | 0 | - | 5.00 | 419,899 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.43 | 71,578 |
| Satellite Images - Europe | 0 | - | 4.47 | 99,023 |
| European Cities by Picture #2 | 0 | - | 4.45 | 36,401 |
| Cities by Satellite #1 | 0 | - | 4.37 | 75,396 |
| Cities by Satellite #2 | 0 | - | 4.48 | 23,830 |
| Countries by Picture #4 | 0 | - | 4.16 | 43,534 |
| Countries by Picture #2 | 0 | - | 4.37 | 66,986 |
| Countries by Picture #5 | 0 | - | 4.28 | 41,529 |
| Countries by Picture #6 | 0 | - | 4.15 | 34,783 |
| Geography by Picture - B | 0 | - | 4.41 | 53,969 |
| Geography by Picture - H | 0 | - | 4.49 | 56,721 |
| Geography by Picture - N | 0 | - | 4.43 | 40,891 |
| Geography by Picture - R | 0 | - | 4.55 | 39,776 |
| Geography by Picture - T | 0 | - | 4.54 | 56,326 |
| Flags of Oceania | 0 | - | 5.00 | 233,038 |
| Three Band Flags of Europe | 0 | - | 4.97 | 181,664 |
| Flags of WW1 | 0 | - | 4.73 | 35,320 |
| Name the Pixelated Landmark | 0 | - | 4.82 | 58,702 |
| Pixelated Africa Map | 0 | - | 4.98 | 92,946 |
| Pixelated Asia Map | 0 | - | 4.91 | 67,585 |
| Pixelated Europe Map | 0 | - | 4.88 | 115,106 |
| Boundary Waters | 0 | - | 4.93 | 84,650 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 32,398 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 89,925 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.92 | 53,567 |
| "Second Best" Geography Edition #2 | 0 | - | 4.85 | 55,757 |
| "Second Best" Geography Edition #3 | 0 | - | 4.88 | 65,121 |
| Countries of the World Quiz | 0 | - | 5.00 | 43,750,019 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 375,192 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 448,290 |
| Satellite Images Quiz #1 | 0 | - | 4.49 | 125,922 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 106,569 |
| Satellite Images Quiz #4 | 0 | - | 4.54 | 86,855 |
| Satellite Images Quiz #5 | 0 | - | 4.46 | 47,870 |
| Satellite Images Quiz #6 | 0 | - | 4.53 | 37,383 |
| Cities by Picture #1 | 0 | - | 4.70 | 81,414 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.52 | 24,093 |
| World Capitals Quiz | 0 | - | 5.00 | 4,759,983 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,343,405 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,419,201 |
| Merged Countries #2 | 0 | - | 4.96 | 93,953 |
| Merged Countries #4 | 0 | - | 4.81 | 88,539 |
| Merged Countries #6 | 0 | - | 4.91 | 68,938 |
| Merged Countries #7 | 0 | - | 4.94 | 78,125 |
| Geography by Picture - A | 0 | - | 4.37 | 58,553 |
| Geography by Picture - D | 0 | - | 4.14 | 44,384 |
| Geography by Picture - F | 0 | - | 4.30 | 49,594 |
| Geography by Picture - G | 0 | - | 4.39 | 46,651 |
| Geography by Picture - J | 0 | - | 4.15 | 37,383 |
| Geography by Picture - K | 0 | - | 4.28 | 32,070 |
| Geography by Picture - C | 0 | - | 4.30 | 55,601 |
| Geography by Picture - L | 0 | - | 4.35 | 57,344 |
| Geography by Picture - M | 0 | - | 4.12 | 39,398 |
| Geography by Picture - P | 0 | - | 4.25 | 41,295 |
| Geography by Picture - S | 0 | - | 4.36 | 45,801 |
| Islands by Shape #1 | 0 | - | 4.28 | 72,621 |
| Islands by Picture | 0 | - | 4.29 | 99,328 |
| World Geography on a Map #1 | 0 | - | 4.93 | 70,320 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 89,813 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 145,182 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 116,223 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 116,291 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,473,744 |
| Spanish-Speaking Countries | 0 | - | 4.94 | 357,272 |
| Countries with the Most Tourists Quiz | 0 | - | 4.91 | 378,373 |
| Island Countries Quiz | 0 | - | 4.99 | 686,315 |
| Sahara Desert Countries | 0 | - | 4.98 | 142,115 |
| Himalayan Countries | 0 | - | 4.95 | 119,119 |
| Andean Countries | 0 | - | 4.92 | 66,790 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 55,342 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 110,732 |
| Coffee Producing Countries | 0 | - | 4.81 | 58,384 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 58,039 |
| Danube Countries | 0 | - | 4.97 | 59,996 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 95,714 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 81,036 |
| Countries with the Best Passports | 0 | - | 4.81 | 78,605 |
| Countries with the Worst Passports | 0 | - | 4.92 | 61,417 |
| Countries with the Most Immigrants | 0 | - | 4.89 | 134,900 |
| European Landlocked Countries | 0 | - | 4.99 | 139,935 |
| Partially Recognized Countries | 0 | - | 4.98 | 96,587 |
| Countries with the Most Species | 0 | - | 4.99 | 91,795 |
| Countries 197 to 205 | 0 | - | 4.87 | 62,049 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 46,348 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 45,472 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 51,860 |
| Countries that Use the Peso | 0 | - | 4.84 | 48,993 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.87 | 69,418 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 52,875 |
| Countries in the Alps | 0 | - | 4.86 | 109,209 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 89,858 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 96,101 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 74,763 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 82,679 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 109,689 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.90 | 91,212 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 94,143 |
| Five Biggest Countries by Longitude | 0 | - | 4.90 | 49,157 |
| Biggest Country by Body of Water | 0 | - | 4.95 | 47,463 |
| Countries with the Most Container Port Traffic | 0 | - | 4.91 | 58,096 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 72,205 |
| Bridge and Tunnel Borders | 0 | - | 4.95 | 50,789 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 38,663 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 99,467 |
| Arctic Ocean Countries | 0 | - | 4.94 | 75,174 |
| Countries with the Most Grassland | 0 | - | 4.93 | 72,829 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 107,317 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 64,246 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 56,174 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 218,596 |
| World Countries - Blind Typing | 0 | - | 5.00 | 83,006 |
| Countries in Their Own Alphabet | 0 | - | 4.96 | 44,514 |
| Largest Countries By Category | 0 | - | 4.97 | 150,191 |
| Countries by Countries | 0 | - | 4.96 | 57,831 |
| Country Flags with the Most White | 0 | - | 4.87 | 130,413 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 60,391 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.86 | 46,062 |
| Merged Country Flags | 0 | - | 4.86 | 101,539 |
| All Countries by Population With a Map | 0 | - | 4.98 | 90,880 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 82,160 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 83,005 |
| Biggest Countries by Area | 0 | - | 5.00 | 981,182 |
