| All Country Flags of the World | 0 | - | 5.00 | 3,627,486 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,530,857 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,089,583 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 731,221 |
| Flags with Crescents | 0 | - | 4.98 | 168,343 |
| Country Flag Trivia | 0 | - | 4.81 | 56,343 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,911 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,862 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,471 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,797 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,681 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,344 |
| Flags of North and South America | 0 | - | 4.99 | 369,945 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,768 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,119 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,609 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,762 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,494 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,269 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,253 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,037 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,029 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,842 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,073 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,166 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,936 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,628 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,113 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,465 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,854 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,014 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,002 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,308 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,497 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,635 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,208 |
| Flags to Languages | 0 | - | 4.95 | 172,964 |
| Former Flags | 0 | - | 4.97 | 107,139 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,762 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,187 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,079 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,584 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,376 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,815 |
| 20 Random Country Flags | 0 | - | 4.99 | 607,940 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,324 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,864 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,914 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,945 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,890 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,172 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,597 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,894 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,528 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,374 |
| World Coats of Arms | 0 | - | 4.99 | 64,117 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,223 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,256 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,511 |
| Flag Maths | 0 | - | 4.64 | 57,701 |
| Similar Flags #1 | 0 | - | 4.74 | 129,458 |
| Similar Flags #2 | 0 | - | 4.74 | 136,756 |
| Emoji Flags | 0 | - | 4.35 | 43,915 |
| Countries by Road Signs | 0 | - | 4.98 | 53,382 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 23,360 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,234 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,540 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,716 |
| Select the World Flags | 0 | - | 4.27 | 37,545 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,096 |
| Name a Valid Country Flag | 0 | - | 4.67 | 75,175 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,180 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,833 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,979 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,782 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,337 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,612 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,118 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,553 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,706 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,234,013 |
| Flags of Asia Quiz | 0 | - | 4.99 | 608,810 |
| Pixelated World Map | 0 | - | 5.00 | 142,839 |
| Flags of Africa Quiz | 0 | - | 5.00 | 466,611 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,402 |
| Flags of WW1 | 0 | - | 4.60 | 38,141 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,028 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,056 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,587 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,968 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,142 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,707 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,235 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,980 |
| Flags of Oceania | 0 | - | 5.00 | 256,824 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,453 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,692 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,384 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,757 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,213 |
| Geography by Picture - B | 0 | - | 4.42 | 55,493 |
| Geography by Picture - H | 0 | - | 4.50 | 58,109 |
| Geography by Picture - N | 0 | - | 4.45 | 42,105 |
| Geography by Picture - R | 0 | - | 4.56 | 40,931 |
| Geography by Picture - T | 0 | - | 4.54 | 57,744 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,782 |
| Boundary Waters | 0 | - | 4.92 | 88,208 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,949 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,626 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,775 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,098 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,008 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,326 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,142,717 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,259 |
| Merged Countries #2 | 0 | - | 4.96 | 98,691 |
| Merged Countries #6 | 0 | - | 4.90 | 72,942 |
| Merged Countries #7 | 0 | - | 4.93 | 82,197 |
| Satellite Images #1 | 0 | - | 4.46 | 129,165 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,119 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,768 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,760 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,883 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,620 |
| World Capitals Quiz | 0 | - | 5.00 | 5,048,771 |
| Landlocked Countries | 0 | - | 4.99 | 416,392 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 561,140 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,676 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,711,288 |
| Geography by Picture - A | 0 | - | 4.39 | 60,124 |
| Geography by Picture - D | 0 | - | 4.15 | 45,553 |
| Geography by Picture - F | 0 | - | 4.31 | 50,887 |
| Geography by Picture - G | 0 | - | 4.38 | 47,860 |
| Geography by Picture - J | 0 | - | 4.16 | 38,379 |
| Geography by Picture - K | 0 | - | 4.29 | 33,052 |
| Geography by Picture - C | 0 | - | 4.31 | 56,983 |
| Geography by Picture - L | 0 | - | 4.37 | 58,845 |
| Geography by Picture - M | 0 | - | 4.14 | 40,379 |
| Geography by Picture - P | 0 | - | 4.24 | 42,349 |
| Geography by Picture - S | 0 | - | 4.38 | 46,964 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,029 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,370 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 393,638 |
| European Cities by Picture #1 | 0 | - | 4.29 | 26,933 |
| Airline Logos | 0 | - | 4.45 | 140,251 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,241 |
| Islands by Picture | 0 | - | 4.29 | 106,346 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,352 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,313 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,252 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,506 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,609 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,248 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,719 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,575 |
| Island Countries | 0 | - | 4.99 | 708,732 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,807 |
| Himalayan Countries | 0 | - | 4.95 | 136,390 |
| Andean Countries | 0 | - | 4.95 | 83,427 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,693 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,917 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,376 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,981 |
| Danube Countries | 0 | - | 4.97 | 71,372 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,169 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,828 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,102 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,053 |
| European Landlocked Countries | 0 | - | 4.99 | 146,100 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,716 |
| Countries with the Most Species | 0 | - | 4.99 | 100,773 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,856 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,315 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,493 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,791 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,163 |
| Countries in the Alps | 0 | - | 4.86 | 117,296 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,875 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,828 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,235 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,715 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,787 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,228 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,957 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,975 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,783 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,311 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,341 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,194 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,700 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,972 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,988 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,660 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,873 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,407 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,207 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,849 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,500 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,799 |
