| All Country Flags of the World | 0 | - | 5.00 | 3,598,093 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,595 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,050 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,410 |
| Flags with Crescents | 0 | - | 4.98 | 167,425 |
| Country Flag Trivia | 0 | - | 4.81 | 55,858 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,321 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,405 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,829 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,397 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,326 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,980 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,021 |
| Countries by Bordering Flags #2 | 0 | - | 4.85 | 82,569 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,454 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,611 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,097 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,724 |
| Flags that are Red & White Only | 0 | - | 4.97 | 158,802 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,495 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,791 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,531 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,545 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,291 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,657 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,729 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,519 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,212 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,760 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,231 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,638 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,715 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,340 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,648 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,700 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,920 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,011 |
| Flags of North and South America | 0 | - | 4.99 | 366,521 |
| Flags to Languages | 0 | - | 4.95 | 172,416 |
| Former Flags | 0 | - | 4.97 | 106,598 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,591 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.96 | 50,145 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,739 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,518 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 83,211 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,684 |
| 20 Random Country Flags | 0 | - | 4.99 | 603,951 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,380 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,226 |
| Flag Maths | 0 | - | 4.78 | 57,669 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,289 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,927 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,425 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,339 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,262 |
| World Coats of Arms | 0 | - | 4.99 | 63,818 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,311 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,710 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,787 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,305 |
| Similar Flags #1 | 0 | - | 4.74 | 129,032 |
| Similar Flags #2 | 0 | - | 4.74 | 136,301 |
| Emoji Flags | 0 | - | 4.35 | 43,803 |
| Countries by Road Signs | 0 | - | 4.98 | 53,055 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 60,990 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,972 |
| Select the World Flags | 0 | - | 4.27 | 37,386 |
| Merged Countries #2 | 0 | - | 4.96 | 98,429 |
| Merged Countries #6 | 0 | - | 4.91 | 72,673 |
| Merged Countries #7 | 0 | - | 4.92 | 81,919 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,263 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,542 |
| Name a Valid Country Flag | 0 | - | 4.64 | 74,763 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,008 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,656 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,793 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,662 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,204 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,339 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,963 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,357 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,421 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,047 |
| Pixelated World Map | 0 | - | 5.00 | 142,363 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,804 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,347 |
| Monarchies Bordering Monarchies | 0 | - | 4.85 | 59,943 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,249 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,647 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,922 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,233 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,896 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,216 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,028 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,536 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,141 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,909 |
| European Countries with One Border | 0 | - | 4.97 | 181,542 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,318 |
| Geography by Picture - B | 0 | - | 4.42 | 55,396 |
| Geography by Picture - H | 0 | - | 4.49 | 58,030 |
| Geography by Picture - N | 0 | - | 4.45 | 42,039 |
| Geography by Picture - R | 0 | - | 4.55 | 40,870 |
| Geography by Picture - T | 0 | - | 4.54 | 57,666 |
| Flags of Oceania | 0 | - | 5.00 | 254,909 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,776 |
| Flags of WW1 | 0 | - | 4.60 | 37,913 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,393 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,024 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,352 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,740 |
| Boundary Waters | 0 | - | 4.92 | 88,023 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,794 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,225 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,216 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,804 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,695 |
| Countries That Border Russia | 0 | - | 4.98 | 458,740 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,869 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,196 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,439 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,400 |
| Countries Bordering France | 0 | - | 4.85 | 398,265 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,893 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,074 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,884,925 |
| Landlocked Countries | 0 | - | 4.99 | 413,216 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 551,751 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,040 |
| Merged Countries #1 | 0 | - | 4.46 | 104,553 |
| Merged Countries #3 | 0 | - | 4.64 | 81,625 |
| Merged Countries #4 | 0 | - | 4.80 | 92,637 |
| Merged Countries #5 | 0 | - | 4.55 | 70,061 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,987 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,969 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,633 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,633 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,795 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,320 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,735 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,651 |
| Countries Bordering the Four Color Seas | 0 | - | 4.92 | 22,737 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,981 |
| Countries Bordering India | 0 | - | 4.98 | 162,565 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,658 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,734 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,914 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 354,567 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 412,645 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,756 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,306 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,196 |
| Countries that Border China | 0 | - | 4.96 | 261,757 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,815 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,508 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,043 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,194 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,694 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,287 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,439 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,414 |
| Countries that Border Poland | 0 | - | 4.99 | 171,284 |
| Geography by Picture - A | 0 | - | 4.39 | 60,040 |
| Geography by Picture - D | 0 | - | 4.15 | 45,478 |
| Geography by Picture - F | 0 | - | 4.31 | 50,817 |
| Geography by Picture - G | 0 | - | 4.38 | 47,778 |
| Geography by Picture - J | 0 | - | 4.16 | 38,330 |
| Geography by Picture - K | 0 | - | 4.28 | 33,007 |
| Geography by Picture - C | 0 | - | 4.31 | 56,897 |
| Geography by Picture - L | 0 | - | 4.37 | 58,741 |
| Geography by Picture - M | 0 | - | 4.14 | 40,338 |
| Geography by Picture - P | 0 | - | 4.24 | 42,293 |
| Geography by Picture - S | 0 | - | 4.38 | 46,902 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,176 |
| Islands by Picture | 0 | - | 4.29 | 105,816 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,129 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,955 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,534 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,889 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,405 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,920 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,106 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,991 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,446 |
| Island Countries | 0 | - | 4.99 | 707,431 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,402 |
| Himalayan Countries | 0 | - | 4.95 | 135,181 |
| Andean Countries | 0 | - | 4.94 | 82,741 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,158 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,092 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,824 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 64,530 |
| Danube Countries | 0 | - | 4.97 | 71,037 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,703 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,494 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,379 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,300 |
| European Landlocked Countries | 0 | - | 4.99 | 145,708 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,125 |
| Countries with the Most Species | 0 | - | 4.99 | 95,220 |