| All Country Flags of the World | 0 | - | 5.00 | 3,657,640 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,536,128 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,092,361 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,084 |
| Flags with Crescents | 0 | - | 4.98 | 169,365 |
| Country Flag Trivia | 0 | - | 4.81 | 56,942 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,633 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,411 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,263 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,209 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,159 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,731 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,519 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,763 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,271 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,141 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,177 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,878 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,996 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,439 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,411 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,349 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,447 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,545 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,322 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 99,009 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,446 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,675 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,063 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,311 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,350 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,676 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,896 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,994 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,803 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,402 |
| Flags of North and South America | 0 | - | 4.99 | 372,638 |
| Flags to Languages | 0 | - | 4.95 | 173,543 |
| Former Flags | 0 | - | 4.97 | 107,626 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,907 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,482 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,390 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,013 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,931 |
| 20 Random Country Flags | 0 | - | 4.99 | 611,476 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,663 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,094 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,440 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,454 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,248 |
| Flag Maths | 0 | - | 4.64 | 57,756 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,473 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,427 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,779 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,723 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,475 |
| World Coats of Arms | 0 | - | 4.99 | 64,438 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,470 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,674 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,269 |
| Similar Flags #1 | 0 | - | 4.75 | 129,934 |
| Similar Flags #2 | 0 | - | 4.74 | 137,227 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.67 | 37,832 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,937 |
| Emoji Flags | 0 | - | 4.35 | 44,063 |
| Countries by Road Signs | 0 | - | 4.98 | 53,735 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,538 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 60,974 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,240 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,648 |
| Select the World Flags | 0 | - | 4.27 | 37,708 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,899 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,880 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,627 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,353 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,050 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,141 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,895 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,461 |
| Countries by Picture #1 | 0 | - | 4.53 | 99,371 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,355 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,783 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,242,434 |
| Flags of Asia Quiz | 0 | - | 4.99 | 612,778 |
| Pixelated World Map | 0 | - | 5.00 | 143,304 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,333 |
| Flags of Africa Quiz | 0 | - | 5.00 | 470,472 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,047 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,576 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,427 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,182 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,001 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,055 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,329 |
| Countries by Picture #2 | 0 | - | 4.37 | 70,053 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,408 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,108 |
| Geography by Picture - B | 0 | - | 4.42 | 55,590 |
| Geography by Picture - H | 0 | - | 4.50 | 58,214 |
| Geography by Picture - N | 0 | - | 4.45 | 42,193 |
| Geography by Picture - R | 0 | - | 4.56 | 41,014 |
| Geography by Picture - T | 0 | - | 4.54 | 57,828 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,419 |
| Flags of Oceania | 0 | - | 5.00 | 258,708 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,155 |
| Flags of WW1 | 0 | - | 4.60 | 38,347 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,159 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 62,964 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,790 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,113 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,662 |
| Boundary Waters | 0 | - | 4.92 | 88,430 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,126 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,012 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,339 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,413 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,348 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,400,218 |
| Landlocked Countries | 0 | - | 4.99 | 419,759 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 570,334 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,437 |
| Satellite Images #1 | 0 | - | 4.47 | 129,338 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,278 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,896 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,899 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,966 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,945 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,817 |
| World Capitals Quiz | 0 | - | 5.00 | 5,068,959 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,762,351 |
| Merged Countries #2 | 0 | - | 4.96 | 99,002 |
| Merged Countries #6 | 0 | - | 4.90 | 73,210 |
| Merged Countries #7 | 0 | - | 4.93 | 82,555 |
| Geography by Picture - A | 0 | - | 4.39 | 60,235 |
| Geography by Picture - D | 0 | - | 4.15 | 45,649 |
| Geography by Picture - F | 0 | - | 4.31 | 50,987 |
| Geography by Picture - G | 0 | - | 4.38 | 47,939 |
| Geography by Picture - J | 0 | - | 4.16 | 38,456 |
| Geography by Picture - K | 0 | - | 4.29 | 33,121 |
| Geography by Picture - C | 0 | - | 4.31 | 57,058 |
| Geography by Picture - L | 0 | - | 4.37 | 58,943 |
| Geography by Picture - M | 0 | - | 4.14 | 40,448 |
| Geography by Picture - P | 0 | - | 4.24 | 42,429 |
| Geography by Picture - S | 0 | - | 4.38 | 47,035 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,398 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,343 |
| Islands by Picture | 0 | - | 4.29 | 106,868 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,547 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,739 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,829 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,050 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,720 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,820 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,584,804 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,836 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,813 |
| Island Countries | 0 | - | 4.99 | 710,112 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,339 |
| Himalayan Countries | 0 | - | 4.95 | 137,775 |
| Andean Countries | 0 | - | 4.95 | 84,103 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,341 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,880 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,972 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,449 |
| Danube Countries | 0 | - | 4.97 | 71,746 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,672 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,145 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,812 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,890 |
| European Landlocked Countries | 0 | - | 4.99 | 146,869 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,250 |
| Countries with the Most Species | 0 | - | 4.99 | 103,014 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,408 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,458 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,622 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,376 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,047 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,446 |
| Countries in the Alps | 0 | - | 4.87 | 117,828 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,223 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,554 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,473 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,343 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,215 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,782 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,377 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,262 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,024 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,629 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,526 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,375 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,996 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,265 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,284 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,369 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,121 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,629 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,668 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,773 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,458 |
