| All Country Flags of the World | 0 | - | 5.00 | 3,709,681 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,545,261 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,847 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,205 |
| Flags with Crescents | 0 | - | 4.98 | 171,222 |
| Country Flag Trivia | 0 | - | 4.81 | 57,942 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,821 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,367 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,516 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,889 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,927 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,433 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,656 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,235 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,229 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,798 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,126 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,515 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,237 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,550 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,333 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,276 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,278 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,221 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,300 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,090 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,694 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,095 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,070 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,461 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,889 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,019 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,372 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,607 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,695 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,637 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,777 |
| Flags of North and South America | 0 | - | 4.99 | 376,652 |
| Flags to Languages | 0 | - | 4.95 | 174,445 |
| Former Flags | 0 | - | 4.97 | 108,505 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,215 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,990 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 44,974 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,702 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,209 |
| 20 Random Country Flags | 0 | - | 4.99 | 618,339 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,214 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,554 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,288 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,359 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,952 |
| Flag Maths | 0 | - | 4.61 | 57,827 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,782 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,139 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,230 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,035 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,630 |
| World Coats of Arms | 0 | - | 4.99 | 65,091 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,494 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,812 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,641 |
| Similar Flags #1 | 0 | - | 4.75 | 130,720 |
| Similar Flags #2 | 0 | - | 4.74 | 138,023 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 38,207 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,611 |
| Emoji Flags | 0 | - | 4.35 | 44,268 |
| Countries by Road Signs | 0 | - | 4.98 | 54,312 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,067 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,569 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,505 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,245 |
| Select the World Flags | 0 | - | 4.28 | 37,974 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,503 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,147 |
| Name a Valid Country Flag | 0 | - | 4.70 | 76,950 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,754 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,461 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,506 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,115 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,691 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,358 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,042 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,197 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,256,861 |
| Flags of Asia Quiz | 0 | - | 4.99 | 619,711 |
| Pixelated World Map | 0 | - | 5.00 | 144,043 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 62,005 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,016 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,630 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,894 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,150 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,402 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,326 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,385 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,783 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,340 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,678 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,216 |
| Geography by Picture - B | 0 | - | 4.42 | 55,769 |
| Geography by Picture - H | 0 | - | 4.50 | 58,368 |
| Geography by Picture - N | 0 | - | 4.45 | 42,334 |
| Geography by Picture - R | 0 | - | 4.56 | 41,137 |
| Geography by Picture - T | 0 | - | 4.54 | 57,992 |
| Merged Company Logos #3 | 0 | - | 4.50 | 64,889 |
| Flags of Oceania | 0 | - | 5.00 | 262,451 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,490 |
| Flags of WW1 | 0 | - | 4.60 | 38,668 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,348 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,411 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,408 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,734 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,423 |
| Boundary Waters | 0 | - | 4.92 | 88,746 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,398 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,657 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,279 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,927 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,928 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,844,367 |
| Landlocked Countries | 0 | - | 4.99 | 425,242 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 586,996 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,768 |
| Satellite Images #1 | 0 | - | 4.47 | 129,941 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,630 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,187 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,199 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,182 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,528 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,891 |
| World Capitals Quiz | 0 | - | 5.00 | 5,103,445 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,801,392 |
| Merged Countries #2 | 0 | - | 4.96 | 99,847 |
| Merged Countries #4 | 0 | - | 4.81 | 94,085 |
| Merged Countries #6 | 0 | - | 4.90 | 73,786 |
| Merged Countries #7 | 0 | - | 4.93 | 83,118 |
| Geography by Picture - A | 0 | - | 4.39 | 60,420 |
| Geography by Picture - D | 0 | - | 4.15 | 45,773 |
| Geography by Picture - F | 0 | - | 4.31 | 51,163 |
| Geography by Picture - G | 0 | - | 4.39 | 48,070 |
| Geography by Picture - J | 0 | - | 4.16 | 38,585 |
| Geography by Picture - K | 0 | - | 4.29 | 33,238 |
| Geography by Picture - C | 0 | - | 4.31 | 57,221 |
| Geography by Picture - L | 0 | - | 4.37 | 59,125 |
| Geography by Picture - M | 0 | - | 4.14 | 40,569 |
| Geography by Picture - P | 0 | - | 4.24 | 42,555 |
| Geography by Picture - S | 0 | - | 4.38 | 47,174 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,750 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,500 |
| Islands by Picture | 0 | - | 4.28 | 107,720 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,906 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,368 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,914 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,943 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,057 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,653 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,598,549 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,541 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,437 |
| Island Countries | 0 | - | 4.99 | 712,376 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,002 |
| Himalayan Countries | 0 | - | 4.93 | 140,034 |
| Andean Countries | 0 | - | 4.94 | 85,323 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,476 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,842 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,053 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,339 |
| Danube Countries | 0 | - | 4.97 | 72,326 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,506 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,775 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,001 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,511 |
| European Landlocked Countries | 0 | - | 4.99 | 147,550 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,209 |
| Countries with the Most Species | 0 | - | 4.99 | 103,526 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,337 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,754 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,856 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,797 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,531 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,966 |
| Countries in the Alps | 0 | - | 4.87 | 118,698 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,505 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,763 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,925 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,973 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,892 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,198 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,337 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,814 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,382 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,131 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,830 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,705 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,509 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,739 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,837 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,716 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,569 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,720 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,613 |
