| All Country Flags of the World | 0 | - | 5.00 | 3,598,956 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,784 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,124 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,467 |
| Flags with Crescents | 0 | - | 4.98 | 167,459 |
| Country Flag Trivia | 0 | - | 4.81 | 55,875 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,343 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,418 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,842 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,410 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,340 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,990 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,638 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,113 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,768 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,342 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,534 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,881 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,548 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,565 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,311 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,674 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,743 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,532 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,226 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,767 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,235 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,643 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,726 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,346 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,655 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,708 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,930 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,015 |
| Flags of North and South America | 0 | - | 4.99 | 366,675 |
| Flags to Languages | 0 | - | 4.95 | 172,433 |
| Former Flags | 0 | - | 4.97 | 106,627 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,599 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,145 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,748 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,530 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,221 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,687 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,036 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,029 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,578 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,465 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,399 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,256 |
| Flag Maths | 0 | - | 4.78 | 57,670 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,311 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,929 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,429 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,343 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,265 |
| World Coats of Arms | 0 | - | 4.99 | 63,824 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,327 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,728 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,808 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,305 |
| Similar Flags #1 | 0 | - | 4.74 | 129,049 |
| Similar Flags #2 | 0 | - | 4.74 | 136,315 |
| Fill the Map of Europe by Guessing Flag Colors | 0 | - | 4.64 | 37,449 |
| Languages by Combined Flags | 0 | - | 4.53 | 99,098 |
| Emoji Flags | 0 | - | 4.35 | 43,803 |
| Countries by Road Signs | 0 | - | 4.98 | 53,065 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,994 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,981 |
| Select the World Flags | 0 | - | 4.27 | 37,390 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,267 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,546 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,769 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,016 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,662 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,794 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,667 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,206 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,339 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,966 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,360 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,714 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,156 |
| Pixelated World Map | 0 | - | 5.00 | 142,379 |
| Category Elimination - Country Flags #2 | 0 | - | 4.57 | 60,647 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,922 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,355 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,255 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,658 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,923 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,242 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,901 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,031 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,540 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,141 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,399 |
| Geography by Picture - H | 0 | - | 4.49 | 58,034 |
| Geography by Picture - N | 0 | - | 4.45 | 42,041 |
| Geography by Picture - R | 0 | - | 4.55 | 40,872 |
| Geography by Picture - T | 0 | - | 4.54 | 57,669 |
| Merged Company Logos #3 | 0 | - | 4.52 | 63,936 |
| Flags of Oceania | 0 | - | 5.00 | 254,970 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,795 |
| Flags of WW1 | 0 | - | 4.60 | 37,917 |
| Flag Vocabulary Mega-Challenge | 0 | - | 4.34 | 26,903 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,397 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,032 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,363 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,750 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,795 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,238 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,230 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,812 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,703 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,892,105 |
| Landlocked Countries | 0 | - | 4.99 | 413,289 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,022 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,045 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,990 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,970 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,635 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,635 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,797 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,329 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,266 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,713,769 |
| Merged Countries #2 | 0 | - | 4.96 | 98,439 |
| Merged Countries #6 | 0 | - | 4.91 | 72,684 |
| Merged Countries #7 | 0 | - | 4.92 | 81,922 |
| Geography by Picture - A | 0 | - | 4.39 | 60,042 |
| Geography by Picture - D | 0 | - | 4.15 | 45,481 |
| Geography by Picture - F | 0 | - | 4.31 | 50,819 |
| Geography by Picture - G | 0 | - | 4.38 | 47,780 |
| Geography by Picture - J | 0 | - | 4.16 | 38,332 |
| Geography by Picture - K | 0 | - | 4.28 | 33,011 |
| Geography by Picture - C | 0 | - | 4.31 | 56,899 |
| Geography by Picture - L | 0 | - | 4.37 | 58,746 |
| Geography by Picture - M | 0 | - | 4.14 | 40,341 |
| Geography by Picture - P | 0 | - | 4.24 | 42,293 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Merged Company Logos #4 | 0 | - | 4.39 | 52,014 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,177 |
| Islands by Picture | 0 | - | 4.29 | 105,838 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,137 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,962 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,549 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,904 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,469 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,929 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,271 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,008 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,586 |
| Island Countries | 0 | - | 4.99 | 707,479 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,440 |
| Himalayan Countries | 0 | - | 4.95 | 135,221 |
| Andean Countries | 0 | - | 4.94 | 82,763 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,171 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,111 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,839 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,547 |
| Danube Countries | 0 | - | 4.97 | 71,046 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,714 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,503 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,395 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,326 |
| European Landlocked Countries | 0 | - | 4.99 | 145,717 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,143 |
| Countries with the Most Species | 0 | - | 4.99 | 95,224 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,287 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.87 | 58,939 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,549 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,920 |
| Countries in the Alps | 0 | - | 4.87 | 116,770 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,526 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,187 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,985 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,389 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,115 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,968 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,529 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,725 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,091 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,019 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,182 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,022 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,418 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,721 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 116,997 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,610 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,236 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,733 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,086 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,536 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,574 |
| Largest Countries By Category | 0 | - | 4.97 | 156,697 |
