| All Country Flags of the World | 0 | - | 5.00 | 3,682,538 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,722 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,540,442 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,094,492 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 734,531 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,349 |
| Flags with Crescents | 0 | - | 4.98 | 170,204 |
| Country Flag Trivia | 0 | - | 4.81 | 57,410 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,178 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,849 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,842 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,518 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,514 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 53,080 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,874 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 145,282 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,459 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,993 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,607 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,813 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 146,495 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,696 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,863 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,794 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,800 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,798 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,900 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,688 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,326 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,758 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,844 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,249 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,565 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,673 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,018 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,217 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,311 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,188 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,589 |
| Flags of North and South America | 0 | - | 4.99 | 374,515 |
| Flags to Languages | 0 | - | 4.95 | 173,947 |
| Former Flags | 0 | - | 4.97 | 108,007 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,039 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,657 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 31,069 |
| 20 Random Country Flags | 0 | - | 4.99 | 614,954 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,949 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,321 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,847 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 281,073 |
| Flag Maths | 0 | - | 4.64 | 57,793 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,247 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,886 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,074 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 72,880 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,555 |
| World Coats of Arms | 0 | - | 4.99 | 64,755 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,927 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,089 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,021 |
| Similar Flags #1 | 0 | - | 4.75 | 130,313 |
| Similar Flags #2 | 0 | - | 4.74 | 137,605 |
| Emoji Flags | 0 | - | 4.35 | 44,164 |
| Countries by Road Signs | 0 | - | 4.98 | 54,052 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,756 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,773 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,363 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 25,498 |
| Select the World Flags | 0 | - | 4.27 | 37,845 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,191 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,004 |
| Name a Valid Country Flag | 0 | - | 4.69 | 76,015 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,573 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,273 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,348 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 47,008 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,591 |
| Countries by Picture #1 | 0 | - | 4.51 | 118,640 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,911 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,021 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,249,186 |
| Flags of Asia Quiz | 0 | - | 4.99 | 616,170 |
| Pixelated World Map | 0 | - | 5.00 | 143,677 |
| Flags of Africa Quiz | 0 | - | 5.00 | 473,487 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,349 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,764 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,283 |
| Cities by Satellite #1 | 0 | - | 4.36 | 81,550 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,188 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,674 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,152 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,565 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,126 |
| Geography by Picture - B | 0 | - | 4.42 | 55,680 |
| Geography by Picture - H | 0 | - | 4.50 | 58,285 |
| Geography by Picture - N | 0 | - | 4.45 | 42,257 |
| Geography by Picture - R | 0 | - | 4.56 | 41,078 |
| Geography by Picture - T | 0 | - | 4.54 | 57,907 |
| Flags of Oceania | 0 | - | 5.00 | 260,698 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,765 |
| Flags of WW1 | 0 | - | 4.60 | 38,514 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,183 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,097 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,417 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,028 |
| Boundary Waters | 0 | - | 4.92 | 88,597 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.86 | 35,268 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,313 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,786 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,654 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,614 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,614,649 |
| Landlocked Countries | 0 | - | 4.99 | 422,379 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 578,068 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,598 |
| Satellite Images #1 | 0 | - | 4.47 | 129,494 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,412 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,996 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,019 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,048 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,206 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,847 |
| World Capitals Quiz | 0 | - | 5.00 | 5,085,624 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,781,671 |
| Merged Countries #2 | 0 | - | 4.96 | 99,278 |
| Merged Countries #6 | 0 | - | 4.90 | 73,500 |
| Merged Countries #7 | 0 | - | 4.93 | 82,837 |
| Geography by Picture - A | 0 | - | 4.39 | 60,330 |
| Geography by Picture - D | 0 | - | 4.15 | 45,712 |
| Geography by Picture - F | 0 | - | 4.31 | 51,077 |
| Geography by Picture - G | 0 | - | 4.39 | 48,006 |
| Geography by Picture - J | 0 | - | 4.16 | 38,517 |
| Geography by Picture - K | 0 | - | 4.29 | 33,178 |
| Geography by Picture - C | 0 | - | 4.31 | 57,133 |
| Geography by Picture - L | 0 | - | 4.37 | 59,049 |
| Geography by Picture - M | 0 | - | 4.14 | 40,510 |
| Geography by Picture - P | 0 | - | 4.24 | 42,485 |
| Geography by Picture - S | 0 | - | 4.38 | 47,092 |
| Islands by Shape #1 | 0 | - | 4.33 | 84,424 |
| Islands by Picture | 0 | - | 4.28 | 107,283 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,725 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,059 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,464 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 124,478 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 331,903 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,223 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,591,522 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,627 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 407,588 |
| Island Countries | 0 | - | 4.99 | 711,183 |
| Sahara Desert Countries | 0 | - | 4.98 | 164,719 |
| Himalayan Countries | 0 | - | 4.95 | 138,916 |
| Andean Countries | 0 | - | 4.93 | 84,731 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,935 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,995 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,548 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,883 |
| Danube Countries | 0 | - | 4.97 | 72,072 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 117,090 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,474 |
| Countries with the Worst Passports | 0 | - | 4.93 | 84,395 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,885 |
| European Landlocked Countries | 0 | - | 4.99 | 147,197 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,726 |
| Countries with the Most Species | 0 | - | 4.99 | 103,280 |
| Countries 197 to 205 | 0 | - | 4.90 | 70,842 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,617 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,739 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,576 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,268 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,711 |
| Countries in the Alps | 0 | - | 4.87 | 118,273 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 101,376 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,114 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,694 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,636 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,560 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,985 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,722 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,546 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,203 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,895 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,680 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,549 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,261 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,515 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,573 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,001 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,346 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 64,267 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,142 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 244,135 |
| World Countries - Blind Typing | 0 | - | 5.00 | 108,244 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,268 |
| Largest Countries By Category | 0 | - | 4.97 | 158,286 |
| Countries by Countries | 0 | - | 4.96 | 63,279 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,747 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,304 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,577 |
| Merged Country Flags | 0 | - | 4.88 | 106,988 |
