| All Country Flags of the World | 0 | - | 5.00 | 3,700,554 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,903 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,494 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,096,015 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,641 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,590 |
| Flags with Crescents | 0 | - | 4.98 | 170,960 |
| Country Flag Trivia | 0 | - | 4.81 | 57,776 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,609 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,186 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,280 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,748 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,779 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,329 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,215 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,979 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,042 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,549 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,004 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,316 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,017 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,299 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,194 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,120 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,134 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,103 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,167 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,958 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,580 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,007 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,988 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,401 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,786 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,932 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,285 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,496 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,577 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,527 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,724 |
| Flags of North and South America | 0 | - | 4.99 | 375,943 |
| Flags to Languages | 0 | - | 4.95 | 174,286 |
| Former Flags | 0 | - | 4.97 | 108,317 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,167 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,879 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,166 |
| 20 Random Country Flags | 0 | - | 4.99 | 617,204 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,141 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,465 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,123 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,685 |
| Flag Maths | 0 | - | 4.61 | 57,816 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,587 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,043 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,174 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,974 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,602 |
| World Coats of Arms | 0 | - | 4.99 | 64,955 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,291 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,667 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,462 |
| Similar Flags #1 | 0 | - | 4.75 | 130,564 |
| Similar Flags #2 | 0 | - | 4.74 | 137,869 |
| Emoji Flags | 0 | - | 4.35 | 44,242 |
| Countries by Road Signs | 0 | - | 4.98 | 54,235 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,843 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,947 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,450 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,030 |
| Select the World Flags | 0 | - | 4.28 | 37,925 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,388 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,091 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,649 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,688 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,391 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,450 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,079 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,664 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,187 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,006 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,142 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,254,061 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,416 |
| Pixelated World Map | 0 | - | 5.00 | 143,909 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 61,882 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,904 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,548 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,014 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,361 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,069 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,317 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,753 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,280 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,634 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,193 |
| Geography by Picture - B | 0 | - | 4.42 | 55,741 |
| Geography by Picture - H | 0 | - | 4.50 | 58,341 |
| Geography by Picture - N | 0 | - | 4.45 | 42,313 |
| Geography by Picture - R | 0 | - | 4.56 | 41,119 |
| Geography by Picture - T | 0 | - | 4.54 | 57,962 |
| Flags of Oceania | 0 | - | 5.00 | 261,911 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,231 |
| Flags of WW1 | 0 | - | 4.60 | 38,607 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,332 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,297 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,641 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,294 |
| Boundary Waters | 0 | - | 4.92 | 88,694 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,354 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,521 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,122 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,822 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,819 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,760,448 |
| Landlocked Countries | 0 | - | 4.99 | 424,193 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 584,431 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,708 |
| Satellite Images #1 | 0 | - | 4.47 | 129,607 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,501 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,087 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,113 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,114 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,449 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,874 |
| World Capitals Quiz | 0 | - | 5.00 | 5,097,328 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,794,490 |
| Merged Countries #2 | 0 | - | 4.96 | 99,759 |
| Merged Countries #6 | 0 | - | 4.90 | 73,698 |
| Merged Countries #7 | 0 | - | 4.93 | 83,040 |
| Geography by Picture - A | 0 | - | 4.39 | 60,391 |
| Geography by Picture - D | 0 | - | 4.15 | 45,758 |
| Geography by Picture - F | 0 | - | 4.31 | 51,137 |
| Geography by Picture - G | 0 | - | 4.39 | 48,051 |
| Geography by Picture - J | 0 | - | 4.16 | 38,566 |
| Geography by Picture - K | 0 | - | 4.29 | 33,222 |
| Geography by Picture - C | 0 | - | 4.31 | 57,196 |
| Geography by Picture - L | 0 | - | 4.37 | 59,097 |
| Geography by Picture - M | 0 | - | 4.14 | 40,554 |
| Geography by Picture - P | 0 | - | 4.24 | 42,535 |
| Geography by Picture - S | 0 | - | 4.38 | 47,150 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,473 |
| Islands by Picture | 0 | - | 4.28 | 107,571 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,837 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,256 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,764 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,789 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,709 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,498 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,596,186 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,222 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,757 |
| Island Countries | 0 | - | 4.99 | 711,943 |
| Sahara Desert Countries | 0 | - | 4.98 | 165,501 |
| Himalayan Countries | 0 | - | 4.94 | 139,661 |
| Andean Countries | 0 | - | 4.94 | 85,126 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,314 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,553 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,885 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,168 |
| Danube Countries | 0 | - | 4.97 | 72,247 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,377 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,677 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,792 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,279 |
| European Landlocked Countries | 0 | - | 4.99 | 147,423 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,033 |
| Countries with the Most Species | 0 | - | 4.99 | 103,452 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,171 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,697 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,809 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,723 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,451 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,874 |
| Countries in the Alps | 0 | - | 4.87 | 118,533 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,202 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,535 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,839 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,848 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,774 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,115 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,962 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,703 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,326 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,040 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,779 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,643 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,418 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,662 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,747 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,441 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,495 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,431 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,445 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,084 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,760 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,407 |
| Largest Countries By Category | 0 | - | 4.97 | 158,597 |
| Countries by Countries | 0 | - | 4.96 | 63,475 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,050 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,357 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,636 |
