| All Country Flags of the World | 0 | - | 5.00 | 3,666,695 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,537,616 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,093,132 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,574 |
| Flags with Crescents | 0 | - | 4.98 | 169,668 |
| Country Flag Trivia | 0 | - | 4.81 | 57,089 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,838 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,557 |
| Pixelated Flag Quiz | 0 | - | 4.97 | 87,494 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 67,309 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 85,267 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,858 |
| Flags of North and South America | 0 | - | 4.99 | 373,240 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,878 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 116,104 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,589 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,385 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,477 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,147 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,304 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,629 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,595 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,532 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,580 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,684 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,467 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 99,129 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,557 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,744 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,138 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,412 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,474 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,808 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 66,013 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,110 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,941 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,485 |
| Flags to Languages | 0 | - | 4.95 | 173,679 |
| Former Flags | 0 | - | 4.97 | 107,771 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,964 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,565 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,487 |
| Three Real and One Fake - Country Flags | 0 | - | 4.97 | 84,140 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,975 |
| 20 Random Country Flags | 0 | - | 4.99 | 612,775 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,762 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,187 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,597 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,606 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,878 |
| Countries by Satellite Image #5 | 0 | - | 4.90 | 82,714 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,973 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,616 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,785 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,515 |
| World Coats of Arms | 0 | - | 4.99 | 64,566 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,813 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 280,570 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 171,506 |
| Flag Maths | 0 | - | 4.64 | 57,764 |
| Similar Flags #1 | 0 | - | 4.75 | 130,074 |
| Similar Flags #2 | 0 | - | 4.74 | 137,359 |
| Emoji Flags | 0 | - | 4.35 | 44,109 |
| Countries by Road Signs | 0 | - | 4.98 | 53,852 |
| Countries by Partial Flag Images #8 | 0 | - | 4.78 | 24,975 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,635 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 76,000 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,928 |
| Select the World Flags | 0 | - | 4.27 | 37,756 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,290 |
| Name a Valid Country Flag | 0 | - | 4.69 | 75,759 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,464 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 70,159 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,234 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,943 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,520 |
| Countries by Picture #1 | 0 | - | 4.51 | 115,557 |
| Countries by Picture #3 | 0 | - | 4.51 | 60,646 |
| Guess the Country by a Picture Hint | 0 | - | 4.43 | 47,884 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 77,129 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,244,703 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,813 |
| Pixelated World Map | 0 | - | 5.00 | 143,420 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,590 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.60 | 43,649 |
| Flags of WW1 | 0 | - | 4.60 | 38,400 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,557 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,211 |
| Cities by Satellite #1 | 0 | - | 4.37 | 81,115 |
| Cities by Satellite #2 | 0 | - | 4.49 | 25,079 |
| Countries by Picture #4 | 0 | - | 4.15 | 46,457 |
| Countries by Picture #2 | 0 | - | 4.38 | 71,792 |
| Countries by Picture #5 | 0 | - | 4.25 | 44,365 |
| Countries by Picture #6 | 0 | - | 4.16 | 36,953 |
| Flags of Oceania | 0 | - | 5.00 | 259,551 |
| Three Band Flags of Europe | 0 | - | 4.98 | 193,375 |
| Name the Pixelated Landmark | 0 | - | 4.85 | 63,040 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,887 |
| Pixelated Asia Map | 0 | - | 4.90 | 73,237 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,789 |
| Geography by Picture - B | 0 | - | 4.42 | 55,619 |
| Geography by Picture - H | 0 | - | 4.50 | 58,244 |
| Geography by Picture - N | 0 | - | 4.45 | 42,215 |
| Geography by Picture - R | 0 | - | 4.56 | 41,038 |
| Geography by Picture - T | 0 | - | 4.54 | 57,858 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,827 |
| Boundary Waters | 0 | - | 4.92 | 88,483 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,177 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,116 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 62,486 |
| "Second Best" Geography Edition #2 | 0 | - | 4.88 | 60,481 |
| "Second Best" Geography Edition #3 | 0 | - | 4.89 | 70,437 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,941 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,476,316 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,496 |
| Merged Countries #2 | 0 | - | 4.96 | 99,104 |
| Merged Countries #6 | 0 | - | 4.90 | 73,304 |
| Merged Countries #7 | 0 | - | 4.93 | 82,650 |
| Satellite Images #1 | 0 | - | 4.47 | 129,403 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,324 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,934 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,949 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 39,000 |
| Cities by Picture #1 | 0 | - | 4.73 | 86,037 |
| World Capitals Quiz | 0 | - | 5.00 | 5,075,294 |
| Landlocked Countries | 0 | - | 4.99 | 420,750 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 572,977 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,985 |
| Places by Country - Tile Select | 0 | - | 4.32 | 14,083 |
| World Map with Random Merged Countries | 0 | - | 4.99 | 1,719,633 |
| Geography by Picture - A | 0 | - | 4.39 | 60,274 |
| Geography by Picture - D | 0 | - | 4.15 | 45,672 |
| Geography by Picture - F | 0 | - | 4.31 | 51,019 |
| Geography by Picture - G | 0 | - | 4.38 | 47,960 |
| Geography by Picture - J | 0 | - | 4.16 | 38,477 |
| Geography by Picture - K | 0 | - | 4.29 | 33,141 |
| Geography by Picture - C | 0 | - | 4.31 | 57,087 |
| Geography by Picture - L | 0 | - | 4.37 | 58,984 |
| Geography by Picture - M | 0 | - | 4.14 | 40,476 |
| Geography by Picture - P | 0 | - | 4.24 | 42,447 |
| Geography by Picture - S | 0 | - | 4.38 | 47,054 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 66,453 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,773 |
| Landmarks Picture Quiz #1 | 0 | - | 4.16 | 394,587 |
| European Cities by Picture #1 | 0 | - | 4.29 | 27,060 |
| Airline Logos | 0 | - | 4.45 | 140,782 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,377 |
| Islands by Picture | 0 | - | 4.28 | 107,022 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,618 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,859 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,160 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,215 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,471 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,939 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,108 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,387 |
| Island Countries | 0 | - | 4.99 | 710,515 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,834 |
| Himalayan Countries | 0 | - | 4.95 | 138,170 |
| Andean Countries | 0 | - | 4.95 | 84,305 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,530 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,406 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,159 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,596 |
| Danube Countries | 0 | - | 4.97 | 71,854 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,829 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,260 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,021 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,472 |
| European Landlocked Countries | 0 | - | 4.99 | 146,995 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,404 |
| Countries with the Most Species | 0 | - | 4.99 | 103,112 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,562 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,519 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,667 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,457 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,130 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,522 |
| Countries in the Alps | 0 | - | 4.87 | 117,987 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,818 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,765 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,557 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,469 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,338 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,842 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,490 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,362 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,089 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,717 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,573 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,428 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,086 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,363 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,385 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,589 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,185 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,707 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,840 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,296 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,728 |
