| All Country Flags of the World | 0 | - | 5.00 | 3,666,148 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,537,531 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,093,093 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,545 |
| Flags with Crescents | 0 | - | 4.98 | 169,648 |
| Country Flag Trivia | 0 | - | 4.81 | 57,079 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,825 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,547 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,485 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,304 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,262 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,850 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,868 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,094 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,571 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,372 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,467 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,135 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,291 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,622 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,589 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,525 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,574 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,680 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,459 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,123 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,553 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,741 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,136 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,408 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,474 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,803 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,009 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,108 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,933 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,485 |
| Flags of North and South America | 0 | - | 4.99 | 373,199 |
| Flags to Languages | 0 | - | 4.95 | 173,672 |
| Former Flags | 0 | - | 4.97 | 107,761 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,962 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,561 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,481 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,134 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,972 |
| 20 Random Country Flags | 0 | - | 4.99 | 612,696 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,757 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,179 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,590 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,599 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,546 |
| Flag Maths | 0 | - | 4.64 | 57,764 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,865 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,710 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,970 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,780 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,510 |
| World Coats of Arms | 0 | - | 4.99 | 64,553 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,609 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,803 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,492 |
| Similar Flags #1 | 0 | - | 4.75 | 130,064 |
| Similar Flags #2 | 0 | - | 4.74 | 137,350 |
| Emoji Flags | 0 | - | 4.35 | 44,109 |
| Countries by Road Signs | 0 | - | 4.98 | 53,846 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,629 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,286 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,961 |
| Select the World Flags | 0 | - | 4.27 | 37,753 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,994 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,928 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,748 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,460 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,156 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,230 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,943 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,520 |
| Countries by Picture #1 | 0 | - | 4.51 | 115,396 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,631 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,881 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,451 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,770 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,586 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,778 |
| Largest City by Island | 0 | - | 4.87 | 71,889 |
| African Island Countries | 0 | - | 4.96 | 101,658 |
| Pixelated World Map | 0 | - | 5.00 | 143,414 |
| Islands by Country #1 | 0 | - | 4.88 | 175,304 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,539 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,128 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,648 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,556 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,209 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,110 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,077 |
| Richest Island Countries | 0 | - | 4.85 | 100,560 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,440 |
| Countries by Picture #2 | 0 | - | 4.38 | 71,772 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,350 |
| Countries by Picture #6 | 0 | - | 4.16 | 36,941 |
| Geography by Picture - B | 0 | - | 4.42 | 55,619 |
| Geography by Picture - H | 0 | - | 4.50 | 58,243 |
| Geography by Picture - N | 0 | - | 4.45 | 42,215 |
| Geography by Picture - R | 0 | - | 4.56 | 41,036 |
| Geography by Picture - T | 0 | - | 4.54 | 57,857 |
| Flags of Oceania | 0 | - | 5.00 | 259,526 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,370 |
| Flags of WW1 | 0 | - | 4.60 | 38,399 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,034 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,883 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,231 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,783 |
| Boundary Waters | 0 | - | 4.92 | 88,475 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,174 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,105 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,475 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,476 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,431 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,471,656 |
| Landlocked Countries | 0 | - | 4.99 | 420,692 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 572,694 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,492 |
| Satellite Images #1 | 0 | - | 4.47 | 129,397 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,324 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,930 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,947 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,999 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,030 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,826 |
| World Capitals Quiz | 0 | - | 5.00 | 5,074,917 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,627 |
| Merged Countries #2 | 0 | - | 4.96 | 99,097 |
| Merged Countries #6 | 0 | - | 4.90 | 73,301 |
| Merged Countries #7 | 0 | - | 4.93 | 82,645 |
| Geography by Picture - A | 0 | - | 4.39 | 60,273 |
| Geography by Picture - D | 0 | - | 4.15 | 45,672 |
| Geography by Picture - F | 0 | - | 4.31 | 51,019 |
| Geography by Picture - G | 0 | - | 4.38 | 47,960 |
| Geography by Picture - J | 0 | - | 4.16 | 38,477 |
| Geography by Picture - K | 0 | - | 4.29 | 33,140 |
| Geography by Picture - C | 0 | - | 4.31 | 57,087 |
| Geography by Picture - L | 0 | - | 4.37 | 58,983 |
| Geography by Picture - M | 0 | - | 4.14 | 40,476 |
| Geography by Picture - P | 0 | - | 4.24 | 42,447 |
| Geography by Picture - S | 0 | - | 4.38 | 47,053 |
| Islands by Satellite Image #2 | 0 | - | 4.35 | 19,175 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,376 |
| Islands by Picture | 0 | - | 4.28 | 107,014 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,616 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,849 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,086 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,207 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,426 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,934 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,785 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,091 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,342 |
| Island Countries | 0 | - | 4.99 | 710,477 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,799 |
| Himalayan Countries | 0 | - | 4.95 | 138,149 |
| Andean Countries | 0 | - | 4.95 | 84,293 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,521 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,385 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,149 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,592 |
| Danube Countries | 0 | - | 4.97 | 71,848 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,821 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,257 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,011 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,459 |
| European Landlocked Countries | 0 | - | 4.99 | 146,987 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,402 |
| Countries with the Most Species | 0 | - | 4.99 | 103,104 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,553 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,512 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,665 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,454 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,128 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,518 |
| Countries in the Alps | 0 | - | 4.87 | 117,976 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,717 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,745 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,553 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,466 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,334 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,839 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,488 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,356 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,085 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,711 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,571 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,426 |
| Asian Island Nations | 0 | - | 4.63 | 94,184 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,082 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,361 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,376 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,576 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,185 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,701 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,836 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,254 |
