| All Country Flags of the World | 0 | - | 5.00 | 3,715,301 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,251 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,340 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,550 |
| Flags with Crescents | 0 | - | 4.98 | 171,401 |
| Country Flag Trivia | 0 | - | 4.81 | 58,067 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 104,932 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 78,464 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 88,637 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,970 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 86,011 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.81 | 53,509 |
| 20 Random Country Flags | 0 | - | 4.99 | 619,150 |
| Flags of North and South America | 0 | - | 4.99 | 377,151 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 146,383 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 117,372 |
| Flags with the Most Stars | 0 | - | 4.91 | 137,945 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 63,219 |
| Flags that are Red & White Only | 0 | - | 4.97 | 165,638 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.92 | 147,359 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 77,695 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 48,435 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 69,374 |
| Country Flags with the Most Red | 0 | - | 4.98 | 121,381 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 93,311 |
| Country Flags with the Most Green | 0 | - | 4.96 | 100,371 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 100,157 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,757 |
| Country Flags with the Most Black | 0 | - | 4.95 | 98,176 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 68,112 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,506 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,940 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 100,089 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 81,434 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,675 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,756 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 32,716 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,797 |
| Flags to Languages | 0 | - | 4.95 | 174,534 |
| Former Flags | 0 | - | 4.97 | 108,613 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 36,251 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 51,049 |
| Country Flags With Blue Removed | 0 | - | 4.89 | 45,022 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 143,601 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.94 | 31,233 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,284 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,610 |
| Flags of the Mediterranean | 0 | - | 4.94 | 149,386 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 145,459 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,565 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 282,116 |
| Flag Maths | 0 | - | 4.61 | 57,848 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 146,890 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 83,193 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 49,271 |
| Countries by Coat of Arms #1 | 0 | - | 4.92 | 73,070 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,649 |
| World Coats of Arms | 0 | - | 4.99 | 65,173 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,878 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.96 | 172,743 |
| Similar Flags #1 | 0 | - | 4.75 | 130,812 |
| Similar Flags #2 | 0 | - | 4.74 | 138,090 |
| Name a Valid Country Flag | 0 | - | 4.70 | 77,024 |
| Emoji Flags | 0 | - | 4.35 | 44,295 |
| Countries by Road Signs | 0 | - | 4.98 | 54,363 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 26,389 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 62,134 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 59,170 |
| Select the World Flags | 0 | - | 4.28 | 38,000 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,543 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,785 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,498 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,542 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.51 | 47,135 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,707 |
| Countries by Picture #1 | 0 | - | 4.52 | 119,426 |
| Countries by Picture #3 | 0 | - | 4.51 | 61,067 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 48,225 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,700 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,493 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,531 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,879 |
| Pixelated World Map | 0 | - | 5.00 | 144,125 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,923 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,730,146 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,767 |
| Satellite Images - Europe | 0 | - | 4.47 | 105,223 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,429 |
| Five Most Populated Countries on a Multicolored World Map | 0 | - | 4.98 | 74,578 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 136,126 |
| Flags of Oceania | 0 | - | 5.00 | 262,804 |
| Three Band Flags of Europe | 0 | - | 4.98 | 194,621 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,467 |
| Pixelated Africa Map | 0 | - | 4.98 | 100,470 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,789 |
| Pixelated Europe Map | 0 | - | 4.88 | 123,488 |
| Cities by Satellite #1 | 0 | - | 4.36 | 82,437 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,412 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,800 |
| Countries by Picture #2 | 0 | - | 4.38 | 72,381 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,700 |
| Countries by Picture #6 | 0 | - | 4.16 | 37,230 |
| Geography by Picture - B | 0 | - | 4.42 | 55,785 |
| Geography by Picture - H | 0 | - | 4.50 | 58,384 |
| Geography by Picture - N | 0 | - | 4.45 | 42,341 |
| Geography by Picture - R | 0 | - | 4.56 | 41,148 |
| Geography by Picture - T | 0 | - | 4.54 | 58,003 |
| Flags of WW1 | 0 | - | 4.60 | 38,703 |
| Five Biggest World Cities by Letter #2 | 0 | - | 4.84 | 69,321 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,986 |
| Name a Valid European Capital | 0 | - | 4.95 | 153,648 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 131,756 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 264,714 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,805 |
| Name a Valid African Country | 0 | - | 4.98 | 155,057 |
| Name a Valid European Country #2 | 0 | - | 4.94 | 115,913 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.50 | 24,899 |
| Boundary Waters | 0 | - | 4.92 | 88,776 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.88 | 35,424 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,716 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 63,365 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,984 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,989 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,892,710 |
| Landlocked Countries | 0 | - | 4.99 | 426,064 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,099 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 589,023 |
| Random Point on Land to European Country | 0 | - | 4.94 | 78,056 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,809 |
| Merged Countries #2 | 0 | - | 4.96 | 99,893 |
| Merged Countries #4 | 0 | - | 4.81 | 94,136 |
| Merged Countries #6 | 0 | - | 4.90 | 73,819 |
| Merged Countries #7 | 0 | - | 4.93 | 83,164 |
| Countries that Beat Australia | 0 | - | 4.92 | 93,461 |
| Topological Map of Asia Quiz | 0 | - | 4.82 | 20,456 |
| Satellite Images #1 | 0 | - | 4.46 | 130,007 |
| Satellite Images Quiz #2 | 0 | - | 4.64 | 109,698 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 89,402 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 50,251 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,229 |
| Cities by Picture #1 | 0 | - | 4.74 | 86,595 |
| French Geography Quiz #1 | 0 | - | 4.89 | 35,093 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,934 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,415 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 167,014 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 125,029 |
| Five Biggest Cities by Country - Extreme | 0 | - | 4.95 | 42,281 |
| U.S. Cities Chain | 0 | - | 4.21 | 35,742 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 124,724 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,240 |
| Random African Capitals on a Map | 0 | - | 4.96 | 55,272 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 51,383 |
| Random European Capitals on a Map | 0 | - | 4.97 | 135,422 |
| Which City in Europe? | 0 | - | 4.83 | 107,906 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,373 |
| Himalayan Countries | 0 | - | 4.93 | 140,333 |
| Andean Countries | 0 | - | 4.94 | 85,514 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,659 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,067 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,234 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,463 |
| Danube Countries | 0 | - | 4.97 | 72,426 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,623 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,858 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,165 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,647 |
| European Landlocked Countries | 0 | - | 4.99 | 147,624 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,335 |
| Countries with the Most Species | 0 | - | 4.99 | 103,578 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,432 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,783 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,892 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,850 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,590 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,033 |
| Countries in the Alps | 0 | - | 4.87 | 118,806 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,681 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,907 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,975 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,040 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,982 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,276 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,430 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,882 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,437 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,196 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,892 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,754 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,573 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,816 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,906 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,893 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,631 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 74,040 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,704 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,802 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,204 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,526 |
| Largest Countries By Category | 0 | - | 4.97 | 158,891 |
| Countries by Countries | 0 | - | 4.96 | 63,663 |
