| All Country Flags of the World | 0 | - | 5.00 | 3,721,353 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,547,232 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,895 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,914 |
| Flags with Crescents | 0 | - | 4.98 | 171,609 |
| Country Flag Trivia | 0 | - | 4.82 | 58,227 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 105,092 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,574 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,801 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 68,086 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,113 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,588 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,537 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,522 |
| Flags with the Most Stars | 0 | - | 4.91 | 138,107 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,304 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,756 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,491 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,827 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,518 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,460 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,488 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,391 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,445 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,239 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,839 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,249 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,168 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,532 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,993 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,151 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,504 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,760 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,840 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 32,807 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,829 |
| Flags of North and South America | 0 | - | 4.99 | 377,701 |
| Former Flags | 0 | - | 4.97 | 108,745 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,282 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,103 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,077 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,826 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,265 |
| 20 Random Country Flags | 0 | - | 4.99 | 619,940 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,358 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,663 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,467 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,587 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,296 |
| Flag Maths | 0 | - | 4.61 | 57,858 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,999 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,241 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,320 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,110 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,674 |
| World Coats of Arms | 0 | - | 4.99 | 65,280 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,706 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,947 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,888 |
| Similar Flags #1 | 0 | - | 4.75 | 130,891 |
| Similar Flags #2 | 0 | - | 4.74 | 138,169 |
| Emoji Flags | 0 | - | 4.35 | 44,314 |
| Countries by Road Signs | 0 | - | 4.98 | 54,418 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,237 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,586 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,575 |
| Select the World Flags | 0 | - | 4.28 | 38,018 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,621 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,202 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,108 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,812 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,533 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,576 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,168 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,746 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,505 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,097 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,244 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,260,243 |
| Flags of Asia Quiz | 0 | - | 4.99 | 621,411 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 129,727 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,794 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 221,111 |
| Pixelated World Map | 0 | - | 5.00 | 144,207 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,600 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,760 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 744,639 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,961 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,280 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,450 |
| Cities by Satellite #1 | 0 | - | 4.37 | 82,566 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,452 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,830 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,419 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,727 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,250 |
| Geography by Picture - B | 0 | - | 4.42 | 55,823 |
| Geography by Picture - H | 0 | - | 4.50 | 58,417 |
| Geography by Picture - N | 0 | - | 4.45 | 42,382 |
| Geography by Picture - R | 0 | - | 4.56 | 41,177 |
| Geography by Picture - T | 0 | - | 4.54 | 58,028 |
| Flags of Oceania | 0 | - | 5.00 | 263,205 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,744 |
| Flags of WW1 | 0 | - | 4.60 | 38,748 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,613 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,547 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,848 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,569 |
| Boundary Waters | 0 | - | 4.92 | 88,820 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,441 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,787 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,478 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 61,033 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,057 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 80,894 |
| All Germanic Languages With a Map | 0 | - | 4.89 | 69,663 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,942,763 |
| Landlocked Countries | 0 | - | 4.99 | 426,911 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 591,031 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,842 |
| Satellite Images #1 | 0 | - | 4.46 | 130,042 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,741 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,430 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,281 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,249 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,633 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,908 |
| World Capitals Quiz | 0 | - | 5.00 | 5,111,436 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 103,112 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 98,954 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,809,840 |
| Merged Countries #2 | 0 | - | 4.96 | 99,938 |
| Merged Countries #4 | 0 | - | 4.81 | 94,171 |
| Merged Countries #6 | 0 | - | 4.90 | 73,874 |
| Merged Countries #7 | 0 | - | 4.93 | 83,218 |
| Geography by Picture - A | 0 | - | 4.39 | 60,470 |
| Geography by Picture - D | 0 | - | 4.15 | 45,815 |
| Geography by Picture - F | 0 | - | 4.31 | 51,221 |
| Geography by Picture - G | 0 | - | 4.39 | 48,112 |
| Geography by Picture - J | 0 | - | 4.16 | 38,626 |
| Geography by Picture - K | 0 | - | 4.29 | 33,283 |
| Geography by Picture - C | 0 | - | 4.31 | 57,267 |
| Geography by Picture - L | 0 | - | 4.37 | 59,163 |
| Geography by Picture - M | 0 | - | 4.14 | 40,605 |
| Geography by Picture - P | 0 | - | 4.24 | 42,593 |
| Geography by Picture - S | 0 | - | 4.38 | 47,200 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,543 |
| Islands by Picture | 0 | - | 4.28 | 107,912 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,972 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,478 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,107 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,141 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 336,258 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 165,980 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,772 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,601,404 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,955 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 410,158 |
| Island Countries | 0 | - | 4.99 | 712,870 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,744 |
| Himalayan Countries | 0 | - | 4.93 | 140,668 |
| Andean Countries | 0 | - | 4.94 | 85,729 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,850 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,388 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,406 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,635 |
| Danube Countries | 0 | - | 4.97 | 72,514 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,737 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,939 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,363 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,820 |
| European Landlocked Countries | 0 | - | 4.99 | 147,703 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,475 |
| Countries with the Most Species | 0 | - | 4.99 | 103,625 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,576 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,802 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,935 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,900 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,655 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,103 |
| Countries in the Alps | 0 | - | 4.87 | 118,917 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,900 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 108,055 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,037 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,135 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,088 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,355 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,530 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,965 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,492 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,282 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,933 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,815 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,640 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,893 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,988 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 120,071 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,693 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 76,120 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,797 |
