| All Country Flags of the World | 0 | - | 5.00 | 3,593,602 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,524,514 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,578 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 729,078 |
| Flags with Crescents | 0 | - | 4.98 | 167,246 |
| Country Flag Trivia | 0 | - | 4.81 | 55,764 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,215 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,331 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,713 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,330 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,258 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,922 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,416 |
| Flags of North and South America | 0 | - | 4.99 | 365,329 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,301 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 113,828 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,411 |
| Flags that are Red & White Only | 0 | - | 4.97 | 145,793 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 144,208 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,075 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,374 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,353 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,020 |
| Country Flags with the Most Blue | 0 | - | 4.87 | 91,510 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,589 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,408 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,102 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,661 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,168 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,570 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,654 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,249 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,551 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,590 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,810 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 97,954 |
| Flags to Languages | 0 | - | 4.95 | 172,324 |
| Former Flags | 0 | - | 4.97 | 106,516 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,526 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,135 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,642 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,208 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,401 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,646 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 111,964 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,519 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,354 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,307 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,201 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,046 |
| Flag Maths | 0 | - | 4.78 | 57,663 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,212 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,890 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,391 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,311 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,251 |
| World Coats of Arms | 0 | - | 4.99 | 63,780 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,621 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,642 |
| Country Flags with the Southern Cross | 0 | - | 4.78 | 61,276 |
| Similar Flags #1 | 0 | - | 4.74 | 128,952 |
| Similar Flags #2 | 0 | - | 4.74 | 136,208 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,682 |
| Emoji Flags | 0 | - | 4.35 | 43,784 |
| Countries by Road Signs | 0 | - | 4.98 | 52,966 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,942 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,510 |
| Select the World Flags | 0 | - | 4.27 | 37,356 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,942 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 70,980 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,628 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,759 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,648 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,188 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,291 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,932 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,328 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,271 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,223,841 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,396 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,490 |
| Pixelated World Map | 0 | - | 5.00 | 141,751 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,703,555 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,124 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,598 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,902 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,045 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,234 |
| Flags of Oceania | 0 | - | 5.00 | 254,555 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,618 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,339 |
| Pixelated Africa Map | 0 | - | 4.98 | 98,937 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,273 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,626 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,180 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,882 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,009 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,507 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,119 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,890 |
| Geography by Picture - B | 0 | - | 4.42 | 55,383 |
| Geography by Picture - H | 0 | - | 4.49 | 58,016 |
| Geography by Picture - N | 0 | - | 4.45 | 42,030 |
| Geography by Picture - R | 0 | - | 4.55 | 40,862 |
| Geography by Picture - T | 0 | - | 4.54 | 57,647 |
| Flags of WW1 | 0 | - | 4.60 | 37,866 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,470 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,033 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,664 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 129,479 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 256,215 |
| Name a Valid Asian Country | 0 | - | 4.98 | 119,924 |
| Name a Valid African Country | 0 | - | 4.98 | 152,796 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 112,996 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,730 |
| Boundary Waters | 0 | - | 4.92 | 87,990 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,785 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,166 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,122 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,755 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,643 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,847,336 |
| Landlocked Countries | 0 | - | 4.99 | 412,835 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 88,835 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 550,511 |
| Random Point on Land to European Country | 0 | - | 4.93 | 75,923 |
| Merged Countries #2 | 0 | - | 4.96 | 98,381 |
| Merged Countries #6 | 0 | - | 4.91 | 72,632 |
| Merged Countries #7 | 0 | - | 4.93 | 81,876 |
| Countries that Beat Australia | 0 | - | 4.92 | 91,998 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,842 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,953 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,950 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,615 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,612 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,774 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,265 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,482 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,102 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,894 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,455 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 122,835 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,641 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,092 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,838 |
| World Capitals Quiz | 0 | - | 5.00 | 5,025,167 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,203 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,573 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,736 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 38,941 |
| Which City in Europe? | 0 | - | 4.83 | 106,539 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,215 |
| Himalayan Countries | 0 | - | 4.95 | 135,036 |
| Andean Countries | 0 | - | 4.94 | 82,653 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,076 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 122,972 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,747 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,453 |
| Danube Countries | 0 | - | 4.97 | 70,989 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,632 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,450 |
| Countries with the Worst Passports | 0 | - | 4.93 | 82,278 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,184 |
| European Landlocked Countries | 0 | - | 4.99 | 145,662 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,039 |
| Countries with the Most Species | 0 | - | 4.99 | 95,181 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,182 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,172 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,331 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,905 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,504 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,862 |
| Countries in the Alps | 0 | - | 4.87 | 116,675 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,460 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,055 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,935 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,317 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,059 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,933 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,459 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,679 |
| Largest Country by Body of Water | 0 | - | 4.95 | 55,163 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 61,963 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,164 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 40,994 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,357 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,667 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,668 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,851 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,560 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,197 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,658 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 238,807 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,348 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,531 |
| Largest Countries By Category | 0 | - | 4.97 | 156,598 |
| Countries by Countries | 0 | - | 4.96 | 62,158 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,201 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,930 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,305 |
