| All Country Flags of the World | 0 | - | 5.00 | 3,600,026 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,944 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,201 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,519 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,235 |
| Flags with Crescents | 0 | - | 4.98 | 167,490 |
| Country Flag Trivia | 0 | - | 4.81 | 55,894 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,363 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,426 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,867 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,428 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,353 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,002 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,411 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,668 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,142 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,815 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,322 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,860 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,571 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,961 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,562 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,582 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,333 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,689 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,758 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,544 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,244 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,782 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,242 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,650 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,732 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,356 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,669 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,716 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,939 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,021 |
| Flags of North and South America | 0 | - | 4.99 | 366,869 |
| Flags to Languages | 0 | - | 4.95 | 172,443 |
| Former Flags | 0 | - | 4.97 | 106,648 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,603 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,758 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,539 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,691 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,168 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,037 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,594 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,488 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,288 |
| Flag Maths | 0 | - | 4.78 | 57,672 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,326 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,936 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,437 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,344 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,267 |
| World Coats of Arms | 0 | - | 4.99 | 63,836 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,350 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,744 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,836 |
| Similar Flags #1 | 0 | - | 4.74 | 129,067 |
| Similar Flags #2 | 0 | - | 4.74 | 136,331 |
| Emoji Flags | 0 | - | 4.35 | 43,807 |
| Countries by Road Signs | 0 | - | 4.98 | 53,079 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,259 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,010 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,986 |
| Select the World Flags | 0 | - | 4.27 | 37,396 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,277 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,549 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,780 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,021 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,666 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,800 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,673 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,210 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,352 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,970 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,371 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,990 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,288 |
| Pixelated World Map | 0 | - | 5.00 | 142,400 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,060 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,359 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,668 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,925 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,250 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,903 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,033 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,549 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,142 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,403 |
| Geography by Picture - H | 0 | - | 4.49 | 58,038 |
| Geography by Picture - N | 0 | - | 4.45 | 42,044 |
| Geography by Picture - R | 0 | - | 4.55 | 40,874 |
| Geography by Picture - T | 0 | - | 4.54 | 57,673 |
| Flags of Oceania | 0 | - | 5.00 | 255,042 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,812 |
| Flags of WW1 | 0 | - | 4.60 | 37,921 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,407 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,041 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,373 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,770 |
| Boundary Waters | 0 | - | 4.92 | 88,027 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,801 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,246 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,244 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,818 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,713 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,899,964 |
| Landlocked Countries | 0 | - | 4.99 | 413,371 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,364 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,054 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,996 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,975 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,640 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,642 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,801 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,343 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,738 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,944 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,482 |
| Merged Countries #2 | 0 | - | 4.96 | 98,450 |
| Merged Countries #6 | 0 | - | 4.91 | 72,692 |
| Merged Countries #7 | 0 | - | 4.92 | 81,935 |
| Geography by Picture - A | 0 | - | 4.39 | 60,045 |
| Geography by Picture - D | 0 | - | 4.15 | 45,484 |
| Geography by Picture - F | 0 | - | 4.31 | 50,820 |
| Geography by Picture - G | 0 | - | 4.38 | 47,782 |
| Geography by Picture - J | 0 | - | 4.16 | 38,333 |
| Geography by Picture - K | 0 | - | 4.28 | 33,011 |
| Geography by Picture - C | 0 | - | 4.31 | 56,903 |
| Geography by Picture - L | 0 | - | 4.37 | 58,753 |
| Geography by Picture - M | 0 | - | 4.14 | 40,343 |
| Geography by Picture - P | 0 | - | 4.24 | 42,296 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,178 |
| Islands by Picture | 0 | - | 4.29 | 105,853 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,147 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,975 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,570 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,919 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,571 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,938 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,511 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,039 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,705 |
| Island Countries | 0 | - | 4.99 | 707,517 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,478 |
| Himalayan Countries | 0 | - | 4.95 | 135,267 |
| Andean Countries | 0 | - | 4.94 | 82,778 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,190 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,134 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,851 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,560 |
| Danube Countries | 0 | - | 4.97 | 71,060 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,725 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,513 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,415 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,340 |
| European Landlocked Countries | 0 | - | 4.99 | 145,727 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,164 |
| Countries with the Most Species | 0 | - | 4.99 | 95,229 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,304 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,358 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,946 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,560 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,930 |
| Countries in the Alps | 0 | - | 4.86 | 116,779 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,531 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,207 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,990 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,400 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,128 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,975 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,545 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,731 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,158 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,029 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,187 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,027 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,427 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,717 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,730 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,014 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,617 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,241 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,744 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,146 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,561 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,584 |
| Largest Countries By Category | 0 | - | 4.97 | 156,713 |
| Countries by Countries | 0 | - | 4.96 | 62,235 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,343 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,956 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,321 |
| Merged Country Flags | 0 | - | 4.88 | 105,988 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,590 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,082 |
