| All Country Flags of the World | 0 | - | 5.00 | 3,701,910 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,731 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,142 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,744 |
| Flags with Crescents | 0 | - | 4.98 | 171,001 |
| Country Flag Trivia | 0 | - | 4.81 | 57,798 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,653 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,221 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,323 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,772 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,812 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,345 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,442 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,013 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,068 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,587 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,023 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,343 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,060 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,341 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,218 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,149 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,164 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,124 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,188 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,975 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,600 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,023 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,002 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,405 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,801 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,940 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,293 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,508 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,594 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,546 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,730 |
| Flags of North and South America | 0 | - | 4.99 | 376,030 |
| Flags to Languages | 0 | - | 4.95 | 174,309 |
| Former Flags | 0 | - | 4.97 | 108,348 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,173 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,916 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,893 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,605 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,174 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,341 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,147 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,473 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,155 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,243 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,720 |
| Flag Maths | 0 | - | 4.61 | 57,816 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,627 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,061 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,185 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,983 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,603 |
| World Coats of Arms | 0 | - | 4.99 | 64,980 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,320 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,693 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,491 |
| Similar Flags #1 | 0 | - | 4.75 | 130,591 |
| Similar Flags #2 | 0 | - | 4.74 | 137,891 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,165 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,492 |
| Emoji Flags | 0 | - | 4.35 | 44,245 |
| Countries by Road Signs | 0 | - | 4.98 | 54,244 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,961 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,447 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,455 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,065 |
| Select the World Flags | 0 | - | 4.28 | 37,929 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,408 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,097 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,714 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,697 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,401 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,459 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,082 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,666 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,225 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,012 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,149 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,433 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,547 |
| Pixelated World Map | 0 | - | 5.00 | 143,931 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,903 |
| Flags of Africa Quiz | 0 | - | 5.00 | 476,065 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,560 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,853 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,035 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,363 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,113 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,331 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,761 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,292 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,641 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,199 |
| Geography by Picture - B | 0 | - | 4.42 | 55,746 |
| Geography by Picture - H | 0 | - | 4.50 | 58,343 |
| Geography by Picture - N | 0 | - | 4.45 | 42,315 |
| Geography by Picture - R | 0 | - | 4.56 | 41,119 |
| Geography by Picture - T | 0 | - | 4.54 | 57,963 |
| Merged Company Logos #3 | 0 | - | 4.50 | 64,797 |
| Flags of Oceania | 0 | - | 5.00 | 261,989 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,274 |
| Flags of WW1 | 0 | - | 4.60 | 38,619 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,315 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,343 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,315 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,651 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,318 |
| Boundary Waters | 0 | - | 4.92 | 88,707 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,360 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,547 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,145 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,838 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,839 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,771,910 |
| Landlocked Countries | 0 | - | 4.99 | 424,353 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,838 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,725 |
| Satellite Images #1 | 0 | - | 4.47 | 129,722 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,534 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,117 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,134 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,130 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,458 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,878 |
| World Capitals Quiz | 0 | - | 5.00 | 5,098,274 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,795,445 |
| Merged Countries #2 | 0 | - | 4.96 | 99,779 |
| Merged Countries #6 | 0 | - | 4.90 | 73,712 |
| Merged Countries #7 | 0 | - | 4.93 | 83,052 |
| Geography by Picture - A | 0 | - | 4.39 | 60,398 |
| Geography by Picture - D | 0 | - | 4.15 | 45,763 |
| Geography by Picture - F | 0 | - | 4.31 | 51,140 |
| Geography by Picture - G | 0 | - | 4.39 | 48,053 |
| Geography by Picture - J | 0 | - | 4.16 | 38,569 |
| Geography by Picture - K | 0 | - | 4.29 | 33,225 |
| Geography by Picture - C | 0 | - | 4.31 | 57,201 |
| Geography by Picture - L | 0 | - | 4.37 | 59,098 |
| Geography by Picture - M | 0 | - | 4.14 | 40,554 |
| Geography by Picture - P | 0 | - | 4.24 | 42,535 |
| Geography by Picture - S | 0 | - | 4.38 | 47,154 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,683 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,474 |
| Islands by Picture | 0 | - | 4.28 | 107,592 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,850 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,276 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,794 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,825 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 334,015 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,527 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,520 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,269 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,871 |
| Island Countries | 0 | - | 4.99 | 712,001 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,574 |
| Himalayan Countries | 0 | - | 4.94 | 139,727 |
| Andean Countries | 0 | - | 4.94 | 85,162 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,338 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,588 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,910 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,194 |
| Danube Countries | 0 | - | 4.97 | 72,258 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,396 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,687 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,830 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,323 |
| European Landlocked Countries | 0 | - | 4.99 | 147,443 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,059 |
| Countries with the Most Species | 0 | - | 4.99 | 103,464 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,191 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,705 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,817 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,734 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,464 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,891 |
| Countries in the Alps | 0 | - | 4.87 | 118,563 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,256 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,578 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,849 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,863 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,786 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,124 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,066 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,726 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,332 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,053 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,785 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,652 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,434 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,669 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,761 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,480 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,512 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,494 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,472 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,148 |
