| All Country Flags of the World | 0 | - | 5.00 | 3,605,584 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,997 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,704 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,884 |
| Flags with Crescents | 0 | - | 4.98 | 167,661 |
| Country Flag Trivia | 0 | - | 4.81 | 55,985 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,489 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,511 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,982 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,505 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,421 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,080 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,824 |
| Flags of North and South America | 0 | - | 4.99 | 367,735 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,863 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,314 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,014 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,426 |
| Flags that are Red & White Only | 0 | - | 4.97 | 161,923 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,735 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 74,387 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,675 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,703 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,440 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,782 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,854 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,625 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,341 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,860 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,298 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,697 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,795 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,457 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,748 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,839 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,037 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,061 |
| Flags to Languages | 0 | - | 4.95 | 172,563 |
| Former Flags | 0 | - | 4.97 | 106,758 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,635 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,159 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,824 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,444 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,660 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,721 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,100 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,653 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,587 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,518 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,333 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,437 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,489 |
| Flag Maths | 0 | - | 4.78 | 57,681 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,437 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,993 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,460 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,385 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,289 |
| World Coats of Arms | 0 | - | 4.99 | 63,895 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,853 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,991 |
| Similar Flags #1 | 0 | - | 4.74 | 129,159 |
| Similar Flags #2 | 0 | - | 4.74 | 136,416 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,868 |
| Emoji Flags | 0 | - | 4.35 | 43,828 |
| Countries by Road Signs | 0 | - | 4.98 | 53,132 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,064 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,593 |
| Select the World Flags | 0 | - | 4.27 | 37,420 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,005 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,070 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,702 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,846 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.56 | 46,693 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,230 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,405 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,997 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,412 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,436 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,227,754 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,012 |
| Pixelated World Map | 0 | - | 5.00 | 142,496 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,706,214 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,829 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,738 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,948 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 73,182 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,418 |
| Flags of Oceania | 0 | - | 5.00 | 255,465 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,953 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,489 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,125 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,471 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,865 |
| Fifty US States in One Minute | 0 | - | 4.56 | 3,519,804 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,309 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,922 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,049 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,582 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,161 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,921 |
| Geography by Picture - B | 0 | - | 4.42 | 55,428 |
| Geography by Picture - H | 0 | - | 4.49 | 58,061 |
| Geography by Picture - N | 0 | - | 4.45 | 42,058 |
| Geography by Picture - R | 0 | - | 4.55 | 40,885 |
| Geography by Picture - T | 0 | - | 4.54 | 57,691 |
| Flags of WW1 | 0 | - | 4.60 | 37,970 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,554 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,136 |
| Name a Valid European Capital | 0 | - | 4.95 | 150,997 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 129,715 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 257,011 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,103 |
| Name a Valid African Country | 0 | - | 4.98 | 153,005 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 113,322 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,743 |
| U.S. States by First Two Letters in 30 Seconds | 0 | - | 4.69 | 1,381,167 |
| Boundary Waters | 0 | - | 4.92 | 88,066 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,832 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,340 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,357 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,867 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,776 |
| Europe Capitals - One Minute Sprint | 0 | - | 4.40 | 200,277 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,948,692 |
| Landlocked Countries | 0 | - | 4.99 | 413,921 |
| Category Elimination - European Countries #1 | 0 | - | 4.89 | 89,024 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 553,948 |
| Random Point on Land to European Country | 0 | - | 4.93 | 76,144 |
| Merged Countries #2 | 0 | - | 4.96 | 98,507 |
| Merged Countries #6 | 0 | - | 4.91 | 72,742 |
| Merged Countries #7 | 0 | - | 4.92 | 81,993 |
| Countries that Beat Australia | 0 | - | 4.92 | 92,146 |
| Topological Map of Asia Quiz | 0 | - | 4.81 | 19,898 |
| Satellite Images #1 | 0 | - | 4.46 | 129,037 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,008 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,666 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,664 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,818 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,397 |
| French Geography Quiz #1 | 0 | - | 4.89 | 34,530 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,189 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,043 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,701 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,100 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.96 | 40,818 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,036 |
| World Capitals Quiz | 0 | - | 5.00 | 5,033,853 |
| Random African Capitals on a Map | 0 | - | 4.96 | 54,298 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 50,666 |
| Random European Capitals on a Map | 0 | - | 4.97 | 133,891 |
| 20 Chinese Cities Everyone Should Know | 0 | - | 4.81 | 39,101 |
| Which City in Europe? | 0 | - | 4.83 | 106,754 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,726 |
| Himalayan Countries | 0 | - | 4.95 | 135,477 |
| Andean Countries | 0 | - | 4.94 | 82,878 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,266 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,279 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,962 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,649 |
| Danube Countries | 0 | - | 4.97 | 71,108 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,807 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,569 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,555 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,461 |
| European Landlocked Countries | 0 | - | 4.99 | 145,792 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,254 |
| Countries with the Most Species | 0 | - | 4.99 | 95,259 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,396 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,207 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,381 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,974 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,596 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,975 |
| Countries in the Alps | 0 | - | 4.86 | 116,881 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,601 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,317 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,036 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,448 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,213 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,036 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,613 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,782 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,415 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,098 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,205 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,058 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,474 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,784 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,775 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,142 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,683 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,275 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,816 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,483 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,780 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,620 |
| Largest Countries By Category | 0 | - | 4.97 | 156,819 |
| Countries by Countries | 0 | - | 4.96 | 62,291 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,448 |
