| All Country Flags of the World | 0 | - | 5.00 | 3,716,487 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,422 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,428 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,603 |
| Flags with Crescents | 0 | - | 4.98 | 171,432 |
| Country Flag Trivia | 0 | - | 4.81 | 58,098 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,963 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,481 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,664 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,991 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,029 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,521 |
| Real vs. Fake Flags | 0 | - | 4.98 | 125,846 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,412 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,399 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,971 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,231 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,664 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,378 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,726 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,453 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,385 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,396 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,322 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,385 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,174 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,769 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,189 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,121 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,511 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,952 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,102 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,443 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,694 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,769 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,736 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,800 |
| Flags of North and South America | 0 | - | 4.99 | 377,256 |
| Flags to Languages | 0 | - | 4.95 | 174,546 |
| Former Flags | 0 | - | 4.97 | 108,640 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,255 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,057 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,032 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,770 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,237 |
| 20 Random Country Flags | 0 | - | 4.99 | 619,291 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,294 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,622 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,398 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,483 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,162 |
| Flag Maths | 0 | - | 4.61 | 57,852 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,895 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,201 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,279 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,074 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,652 |
| World Coats of Arms | 0 | - | 4.99 | 65,190 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,620 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,890 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,763 |
| Similar Flags #1 | 0 | - | 4.75 | 130,826 |
| Similar Flags #2 | 0 | - | 4.74 | 138,103 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.69 | 38,243 |
| Languages by Combined Flags | 0 | - | 4.53 | 100,687 |
| Emoji Flags | 0 | - | 4.35 | 44,296 |
| Countries by Road Signs | 0 | - | 4.98 | 54,376 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,145 |
| Famous Landmarks Out Of Focus #1 | 0 | - | 4.89 | 61,644 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,553 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,432 |
| Select the World Flags | 0 | - | 4.28 | 38,001 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,578 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,178 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,035 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,792 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,502 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,546 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,141 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,715 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,444 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,074 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,228 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,833 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,689 |
| Pixelated World Map | 0 | - | 5.00 | 144,133 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 62,088 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,957 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,711 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,928 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,234 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,432 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,458 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,424 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,809 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,390 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,707 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,236 |
| Geography by Picture - B | 0 | - | 4.42 | 55,785 |
| Geography by Picture - H | 0 | - | 4.50 | 58,386 |
| Geography by Picture - N | 0 | - | 4.45 | 42,347 |
| Geography by Picture - R | 0 | - | 4.56 | 41,153 |
| Geography by Picture - T | 0 | - | 4.54 | 58,007 |
| Merged Company Logos #3 | 0 | - | 4.50 | 64,958 |
| Flags of Oceania | 0 | - | 5.00 | 262,886 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,642 |
| Flags of WW1 | 0 | - | 4.60 | 38,716 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 27,374 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,477 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,480 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,797 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,503 |
| Boundary Waters | 0 | - | 4.92 | 88,784 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,731 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,380 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,992 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 71,004 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,902,580 |
| Landlocked Countries | 0 | - | 4.99 | 426,211 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,293 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,815 |
| Satellite Images #1 | 0 | - | 4.46 | 130,017 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,714 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,411 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,260 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,235 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,599 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,899 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,101 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,806,448 |
| Merged Countries #2 | 0 | - | 4.96 | 99,899 |
| Merged Countries #4 | 0 | - | 4.81 | 94,141 |
| Merged Countries #6 | 0 | - | 4.90 | 73,828 |
| Merged Countries #7 | 0 | - | 4.93 | 83,170 |
| Geography by Picture - A | 0 | - | 4.39 | 60,441 |
| Geography by Picture - D | 0 | - | 4.15 | 45,791 |
| Geography by Picture - F | 0 | - | 4.31 | 51,185 |
| Geography by Picture - G | 0 | - | 4.39 | 48,085 |
| Geography by Picture - J | 0 | - | 4.16 | 38,600 |
| Geography by Picture - K | 0 | - | 4.29 | 33,253 |
| Geography by Picture - C | 0 | - | 4.31 | 57,242 |
| Geography by Picture - L | 0 | - | 4.37 | 59,146 |
| Geography by Picture - M | 0 | - | 4.14 | 40,586 |
| Geography by Picture - P | 0 | - | 4.24 | 42,572 |
| Geography by Picture - S | 0 | - | 4.38 | 47,184 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,790 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,522 |
| Islands by Picture | 0 | - | 4.28 | 107,827 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,940 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,429 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,037 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,053 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,709 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,730 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,229 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,773 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,865 |
| Island Countries | 0 | - | 4.99 | 712,674 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,425 |
| Himalayan Countries | 0 | - | 4.93 | 140,381 |
| Andean Countries | 0 | - | 4.94 | 85,539 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,694 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,123 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,262 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,495 |
| Danube Countries | 0 | - | 4.97 | 72,438 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,643 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,873 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,203 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,679 |
| European Landlocked Countries | 0 | - | 4.99 | 147,640 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,352 |
| Countries with the Most Species | 0 | - | 4.99 | 103,590 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,453 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,786 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,898 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,860 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,597 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,043 |
| Countries in the Alps | 0 | - | 4.87 | 118,826 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,712 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,941 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,985 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,057 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,994 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,289 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,438 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,889 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,447 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,210 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,899 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,759 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,585 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,824 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,916 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,921 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,637 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,625 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,715 |
