| All Country Flags of the World | 0 | - | 5.00 | 3,639,058 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,532,873 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,762 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 732,020 |
| Flags with Crescents | 0 | - | 4.98 | 168,766 |
| Country Flag Trivia | 0 | - | 4.81 | 56,619 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,217 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,090 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,801 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,967 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,870 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,504 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,064 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,367 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,887 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,928 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,790 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,511 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,570 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,197 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,187 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,047 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,218 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,313 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,063 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,779 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,238 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,559 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,943 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,135 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,142 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,453 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,672 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,766 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,287 |
| Flags of North and South America | 0 | - | 4.99 | 371,098 |
| Flags to Languages | 0 | - | 4.95 | 173,201 |
| Former Flags | 0 | - | 4.97 | 107,341 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,822 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,299 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,198 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,547 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,759 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,865 |
| 20 Random Country Flags | 0 | - | 4.99 | 609,129 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,456 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,956 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,143 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,140 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,666 |
| Flag Maths | 0 | - | 4.64 | 57,731 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,091 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,276 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,665 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,605 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,411 |
| World Coats of Arms | 0 | - | 4.99 | 64,235 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,128 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,411 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,811 |
| Similar Flags #1 | 0 | - | 4.74 | 129,641 |
| Similar Flags #2 | 0 | - | 4.74 | 136,942 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,715 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,684 |
| Emoji Flags | 0 | - | 4.35 | 43,973 |
| Countries by Road Signs | 0 | - | 4.98 | 53,523 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,355 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,755 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,157 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,946 |
| Select the World Flags | 0 | - | 4.27 | 37,621 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,657 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,775 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,360 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,245 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,912 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,031 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,829 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,391 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,725 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,177 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,633 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,237,434 |
| Flags of Asia Quiz | 0 | - | 4.99 | 610,250 |
| Pixelated World Map | 0 | - | 5.00 | 143,020 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,116 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,996 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,853 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,466 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,183 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,102 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,757 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,002 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,186 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,799 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,273 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,012 |
| Geography by Picture - B | 0 | - | 4.42 | 55,526 |
| Geography by Picture - H | 0 | - | 4.50 | 58,151 |
| Geography by Picture - N | 0 | - | 4.45 | 42,141 |
| Geography by Picture - R | 0 | - | 4.56 | 40,962 |
| Geography by Picture - T | 0 | - | 4.54 | 57,776 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,278 |
| Flags of Oceania | 0 | - | 5.00 | 257,567 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,710 |
| Flags of WW1 | 0 | - | 4.60 | 38,229 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,082 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,788 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,531 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,902 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,365 |
| Boundary Waters | 0 | - | 4.92 | 88,320 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,034 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,774 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,989 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,243 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,162 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,243,410 |
| Landlocked Countries | 0 | - | 4.99 | 417,635 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 564,758 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,330 |
| Satellite Images #1 | 0 | - | 4.46 | 129,235 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,191 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,820 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,823 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,909 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,741 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,797 |
| World Capitals Quiz | 0 | - | 5.00 | 5,056,712 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,748,458 |
| Merged Countries #2 | 0 | - | 4.96 | 98,816 |
| Merged Countries #6 | 0 | - | 4.90 | 73,049 |
| Merged Countries #7 | 0 | - | 4.93 | 82,333 |
| Geography by Picture - A | 0 | - | 4.39 | 60,164 |
| Geography by Picture - D | 0 | - | 4.15 | 45,583 |
| Geography by Picture - F | 0 | - | 4.31 | 50,922 |
| Geography by Picture - G | 0 | - | 4.38 | 47,893 |
| Geography by Picture - J | 0 | - | 4.16 | 38,404 |
| Geography by Picture - K | 0 | - | 4.29 | 33,079 |
| Geography by Picture - C | 0 | - | 4.31 | 57,008 |
| Geography by Picture - L | 0 | - | 4.37 | 58,870 |
| Geography by Picture - M | 0 | - | 4.14 | 40,405 |
| Geography by Picture - P | 0 | - | 4.24 | 42,379 |
| Geography by Picture - S | 0 | - | 4.38 | 46,990 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,276 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,277 |
| Islands by Picture | 0 | - | 4.29 | 106,552 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,443 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,484 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,474 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,710 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,898 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,546 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,580,278 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,258 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,447 |
| Island Countries | 0 | - | 4.99 | 709,249 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,375 |
| Himalayan Countries | 0 | - | 4.94 | 136,891 |
| Andean Countries | 0 | - | 4.95 | 83,664 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,930 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,253 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,592 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,176 |
| Danube Countries | 0 | - | 4.97 | 71,520 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,359 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,941 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,389 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,454 |
| European Landlocked Countries | 0 | - | 4.99 | 146,297 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,953 |
| Countries with the Most Species | 0 | - | 4.99 | 102,609 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,070 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,374 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,550 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,225 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,884 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,267 |
| Countries in the Alps | 0 | - | 4.86 | 117,491 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,002 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,115 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,334 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,847 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,946 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,362 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,121 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,079 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,883 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,428 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,419 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,269 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,825 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,094 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,107 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,935 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,972 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,500 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,361 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,660 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,882 |
