| All Country Flags of the World | 0 | - | 5.00 | 3,600,174 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,976 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,221 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,538 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,238 |
| Flags with Crescents | 0 | - | 4.98 | 167,494 |
| Country Flag Trivia | 0 | - | 4.81 | 55,900 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,366 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,430 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,870 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,431 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,355 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,003 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,415 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,673 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,147 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,819 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,325 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,957 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,575 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,978 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,569 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,586 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,336 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,692 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,758 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,545 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,247 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,783 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,247 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,653 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,733 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,360 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,670 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,720 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,944 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,021 |
| Flags of North and South America | 0 | - | 4.99 | 366,886 |
| Flags to Languages | 0 | - | 4.95 | 172,449 |
| Former Flags | 0 | - | 4.97 | 106,652 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,604 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,760 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,542 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,691 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,188 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,039 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,598 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,494 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,295 |
| Flag Maths | 0 | - | 4.78 | 57,672 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,328 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,940 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,437 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,345 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,267 |
| World Coats of Arms | 0 | - | 4.99 | 63,839 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,356 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,745 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,842 |
| Similar Flags #1 | 0 | - | 4.74 | 129,068 |
| Similar Flags #2 | 0 | - | 4.74 | 136,336 |
| Emoji Flags | 0 | - | 4.35 | 43,807 |
| Countries by Road Signs | 0 | - | 4.98 | 53,080 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,261 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,012 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,986 |
| Select the World Flags | 0 | - | 4.27 | 37,397 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,278 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,549 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,781 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,024 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,669 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,802 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,673 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,211 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,352 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,970 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,375 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,054 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,305 |
| Pixelated World Map | 0 | - | 5.00 | 142,402 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,073 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,360 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,671 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,925 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,251 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,904 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,033 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,550 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,143 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,404 |
| Geography by Picture - H | 0 | - | 4.49 | 58,038 |
| Geography by Picture - N | 0 | - | 4.45 | 42,044 |
| Geography by Picture - R | 0 | - | 4.55 | 40,875 |
| Geography by Picture - T | 0 | - | 4.54 | 57,673 |
| Flags of Oceania | 0 | - | 5.00 | 255,054 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,814 |
| Flags of WW1 | 0 | - | 4.60 | 37,924 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,411 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,041 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,377 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,773 |
| Boundary Waters | 0 | - | 4.92 | 88,027 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,804 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,247 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,246 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,822 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,715 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,901,170 |
| Landlocked Countries | 0 | - | 4.99 | 413,384 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,408 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,054 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,996 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,975 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,640 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,642 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,802 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,343 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,738 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,056 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,611 |
| Merged Countries #2 | 0 | - | 4.96 | 98,451 |
| Merged Countries #6 | 0 | - | 4.91 | 72,693 |
| Merged Countries #7 | 0 | - | 4.92 | 81,937 |
| Geography by Picture - A | 0 | - | 4.39 | 60,046 |
| Geography by Picture - D | 0 | - | 4.15 | 45,486 |
| Geography by Picture - F | 0 | - | 4.31 | 50,821 |
| Geography by Picture - G | 0 | - | 4.38 | 47,782 |
| Geography by Picture - J | 0 | - | 4.16 | 38,333 |
| Geography by Picture - K | 0 | - | 4.28 | 33,011 |
| Geography by Picture - C | 0 | - | 4.31 | 56,903 |
| Geography by Picture - L | 0 | - | 4.37 | 58,754 |
| Geography by Picture - M | 0 | - | 4.14 | 40,343 |
| Geography by Picture - P | 0 | - | 4.24 | 42,296 |
| Geography by Picture - S | 0 | - | 4.38 | 46,904 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,179 |
| Islands by Picture | 0 | - | 4.29 | 105,853 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,148 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,977 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,577 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,921 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,593 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,944 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,564 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,049 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,720 |
| Island Countries | 0 | - | 4.99 | 707,526 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,488 |
| Himalayan Countries | 0 | - | 4.95 | 135,272 |
| Andean Countries | 0 | - | 4.94 | 82,782 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,192 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,137 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,857 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,564 |
| Danube Countries | 0 | - | 4.97 | 71,060 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,728 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,514 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,418 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,344 |
| European Landlocked Countries | 0 | - | 4.99 | 145,729 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,167 |
| Countries with the Most Species | 0 | - | 4.99 | 95,232 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,307 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,358 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,947 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,560 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,934 |
| Countries in the Alps | 0 | - | 4.86 | 116,786 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,533 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,213 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,991 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,400 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,129 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,975 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,546 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,732 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,165 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,030 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,188 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,027 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,428 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,719 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,730 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,014 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,617 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,241 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,745 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,161 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,589 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,586 |
| Largest Countries By Category | 0 | - | 4.97 | 156,716 |
| Countries by Countries | 0 | - | 4.96 | 62,238 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,344 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,957 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,322 |
| Merged Country Flags | 0 | - | 4.88 | 105,988 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,600 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,084 |
