| All Country Flags of the World | 0 | - | 5.00 | 3,674,741 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,539,064 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,093,847 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,099 |
| Flags with Crescents | 0 | - | 4.98 | 169,927 |
| Country Flag Trivia | 0 | - | 4.81 | 57,229 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,010 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,706 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,662 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,421 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,394 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,976 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,096 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,295 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,806 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,518 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,634 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,340 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,530 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,760 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,689 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,679 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,705 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,795 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,576 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 99,231 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,665 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,801 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,199 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,491 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,583 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,927 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,115 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,219 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,075 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,541 |
| Flags of North and South America | 0 | - | 4.99 | 373,877 |
| Flags to Languages | 0 | - | 4.95 | 173,831 |
| Former Flags | 0 | - | 4.97 | 107,894 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,011 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,641 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,582 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,260 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,030 |
| 20 Random Country Flags | 0 | - | 4.99 | 613,879 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,856 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,260 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,729 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,756 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,812 |
| Flag Maths | 0 | - | 4.64 | 57,778 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,094 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,807 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,038 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,833 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,534 |
| World Coats of Arms | 0 | - | 4.99 | 64,648 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,776 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,942 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 171,806 |
| Similar Flags #1 | 0 | - | 4.75 | 130,200 |
| Similar Flags #2 | 0 | - | 4.74 | 137,489 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.68 | 37,954 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,154 |
| Emoji Flags | 0 | - | 4.35 | 44,138 |
| Countries by Road Signs | 0 | - | 4.98 | 53,970 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,703 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,182 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,322 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,246 |
| Select the World Flags | 0 | - | 4.27 | 37,816 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,099 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,966 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,898 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,522 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,214 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,294 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,980 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,555 |
| Countries by Picture #1 | 0 | - | 4.51 | 117,811 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,845 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,959 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,246,983 |
| Flags of Asia Quiz | 0 | - | 4.99 | 615,210 |
| Pixelated World Map | 0 | - | 5.00 | 143,555 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,539 |
| Flags of Africa Quiz | 0 | - | 5.00 | 472,559 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,261 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,712 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,651 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,250 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,243 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,100 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,623 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,073 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,515 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,078 |
| Geography by Picture - B | 0 | - | 4.42 | 55,654 |
| Geography by Picture - H | 0 | - | 4.50 | 58,267 |
| Geography by Picture - N | 0 | - | 4.45 | 42,236 |
| Geography by Picture - R | 0 | - | 4.56 | 41,061 |
| Geography by Picture - T | 0 | - | 4.54 | 57,887 |
| Merged Company Logos #3 | 0 | - | 4.49 | 64,574 |
| Flags of Oceania | 0 | - | 5.00 | 260,075 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,582 |
| Flags of WW1 | 0 | - | 4.60 | 38,460 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,228 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,119 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,981 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,340 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,928 |
| Boundary Waters | 0 | - | 4.92 | 88,532 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,223 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,216 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,629 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,556 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,519 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,547,211 |
| Landlocked Countries | 0 | - | 4.99 | 421,527 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 575,541 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,555 |
| Satellite Images #1 | 0 | - | 4.47 | 129,446 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,368 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,968 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,991 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,025 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,120 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,836 |
| World Capitals Quiz | 0 | - | 5.00 | 5,080,658 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,775,488 |
| Merged Countries #2 | 0 | - | 4.96 | 99,207 |
| Merged Countries #6 | 0 | - | 4.90 | 73,414 |
| Merged Countries #7 | 0 | - | 4.93 | 82,754 |
| Geography by Picture - A | 0 | - | 4.39 | 60,302 |
| Geography by Picture - D | 0 | - | 4.15 | 45,692 |
| Geography by Picture - F | 0 | - | 4.31 | 51,052 |
| Geography by Picture - G | 0 | - | 4.39 | 47,982 |
| Geography by Picture - J | 0 | - | 4.16 | 38,497 |
| Geography by Picture - K | 0 | - | 4.29 | 33,162 |
| Geography by Picture - C | 0 | - | 4.31 | 57,114 |
| Geography by Picture - L | 0 | - | 4.37 | 59,024 |
| Geography by Picture - M | 0 | - | 4.14 | 40,493 |
| Geography by Picture - P | 0 | - | 4.24 | 42,466 |
| Geography by Picture - S | 0 | - | 4.38 | 47,074 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,518 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,406 |
| Islands by Picture | 0 | - | 4.28 | 107,169 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,683 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,976 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,343 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,347 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,205 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,104 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,589,411 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,378 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,933 |
| Island Countries | 0 | - | 4.99 | 710,880 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,222 |
| Himalayan Countries | 0 | - | 4.95 | 138,517 |
| Andean Countries | 0 | - | 4.93 | 84,495 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,679 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,667 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,307 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,717 |
| Danube Countries | 0 | - | 4.97 | 71,951 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,949 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,368 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,206 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,671 |
| European Landlocked Countries | 0 | - | 4.99 | 147,078 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,547 |
| Countries with the Most Species | 0 | - | 4.99 | 103,187 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,685 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,556 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,698 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,507 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,189 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,606 |
| Countries in the Alps | 0 | - | 4.87 | 118,136 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,778 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,955 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,613 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,553 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,439 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,911 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,619 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,451 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,152 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,802 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,622 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,486 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,178 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,426 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,477 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,785 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,272 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 62,854 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,985 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,712 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,964 |
