| All Country Flags of the World | 0 | - | 5.00 | 3,612,506 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,528,158 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,283 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,291 |
| Flags with Crescents | 0 | - | 4.98 | 167,867 |
| Country Flag Trivia | 0 | - | 4.81 | 56,095 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,609 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,599 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,123 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,592 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,498 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,169 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,346 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,750 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,257 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,569 |
| Flags that are Red & White Only | 0 | - | 4.97 | 162,832 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,949 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,739 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,831 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,841 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,568 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,873 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,967 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,727 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,448 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,941 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,357 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,760 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,870 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,783 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,059 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,240 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,392 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,125 |
| Flags of North and South America | 0 | - | 4.99 | 368,416 |
| Flags to Languages | 0 | - | 4.95 | 172,685 |
| Former Flags | 0 | - | 4.97 | 106,876 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,688 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,170 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,905 |
| Countries by Partial Flag Images #7 | 0 | - | 4.90 | 31,121 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,401 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,754 |
| 20 Random Country Flags | 0 | - | 4.99 | 605,863 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,180 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,728 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,677 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,657 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,724 |
| Flag Maths | 0 | - | 4.78 | 57,691 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,579 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,042 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,503 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,435 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,311 |
| World Coats of Arms | 0 | - | 4.99 | 63,972 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,562 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,974 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,126 |
| Similar Flags #1 | 0 | - | 4.74 | 129,259 |
| Similar Flags #2 | 0 | - | 4.74 | 136,524 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,522 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,283 |
| Emoji Flags | 0 | - | 4.35 | 43,853 |
| Countries by Road Signs | 0 | - | 4.98 | 53,224 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,120 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,037 |
| Countries by Partial Flag Images #8 | 0 | - | 4.77 | 21,208 |
| Select the World Flags | 0 | - | 4.27 | 37,447 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,386 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,637 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,957 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,100 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,741 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 66,898 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,728 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,265 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,465 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,037 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,450 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,229,575 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,823 |
| Pixelated World Map | 0 | - | 5.00 | 142,591 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 60,791 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,547 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,528 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,317 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,828 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,986 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,396 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,937 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,075 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,617 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,188 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,943 |
| Geography by Picture - B | 0 | - | 4.42 | 55,451 |
| Geography by Picture - H | 0 | - | 4.50 | 58,074 |
| Geography by Picture - N | 0 | - | 4.45 | 42,070 |
| Geography by Picture - R | 0 | - | 4.55 | 40,900 |
| Geography by Picture - T | 0 | - | 4.54 | 57,708 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,056 |
| Flags of Oceania | 0 | - | 5.00 | 255,911 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,094 |
| Flags of WW1 | 0 | - | 4.60 | 38,016 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 26,977 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,542 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,209 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,555 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,954 |
| Boundary Waters | 0 | - | 4.92 | 88,104 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,874 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,430 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,500 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,941 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,851 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,007,947 |
| Landlocked Countries | 0 | - | 4.99 | 414,717 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 556,036 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,163 |
| Satellite Images #1 | 0 | - | 4.46 | 129,072 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,042 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,697 |
| Satellite Images Quiz #5 | 0 | - | 4.49 | 49,693 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,842 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,465 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,752 |
| World Capitals Quiz | 0 | - | 5.00 | 5,039,088 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,725,725 |
| Merged Countries #2 | 0 | - | 4.96 | 98,553 |
| Merged Countries #6 | 0 | - | 4.90 | 72,802 |
| Merged Countries #7 | 0 | - | 4.92 | 82,047 |
| Geography by Picture - A | 0 | - | 4.39 | 60,079 |
| Geography by Picture - D | 0 | - | 4.15 | 45,525 |
| Geography by Picture - F | 0 | - | 4.31 | 50,854 |
| Geography by Picture - G | 0 | - | 4.38 | 47,825 |
| Geography by Picture - J | 0 | - | 4.16 | 38,355 |
| Geography by Picture - K | 0 | - | 4.29 | 33,035 |
| Geography by Picture - C | 0 | - | 4.31 | 56,940 |
| Geography by Picture - L | 0 | - | 4.37 | 58,793 |
| Geography by Picture - M | 0 | - | 4.14 | 40,362 |
| Geography by Picture - P | 0 | - | 4.24 | 42,320 |
| Geography by Picture - S | 0 | - | 4.38 | 46,934 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,106 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,202 |
| Islands by Picture | 0 | - | 4.29 | 106,079 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,241 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,126 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,006 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,227 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,298 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,112 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,573,588 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,523 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,409 |
| Island Countries | 0 | - | 4.99 | 708,052 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,048 |
| Himalayan Countries | 0 | - | 4.95 | 135,741 |
| Andean Countries | 0 | - | 4.94 | 83,046 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,391 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,470 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,089 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,752 |
| Danube Countries | 0 | - | 4.97 | 71,193 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,919 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,651 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,732 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,636 |
| European Landlocked Countries | 0 | - | 4.99 | 145,889 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,394 |
| Countries with the Most Species | 0 | - | 4.99 | 95,307 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,551 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,241 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,409 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,023 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,665 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,033 |
| Countries in the Alps | 0 | - | 4.86 | 117,006 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,693 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,472 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,116 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,519 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,309 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,098 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,709 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,847 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,618 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,162 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,240 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,107 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,556 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,840 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,839 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,320 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,744 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,321 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,958 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,901 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,041 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,687 |
