| All Country Flags of the World | 0 | - | 5.00 | 3,599,797 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,901 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,184 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,506 |
| Flags with Crescents | 0 | - | 4.98 | 167,482 |
| Country Flag Trivia | 0 | - | 4.81 | 55,889 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,360 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,425 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,859 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,420 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,351 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,998 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,661 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,135 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,803 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,318 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,709 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,561 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,943 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,558 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,576 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,331 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,688 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,753 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,542 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,239 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,780 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,240 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,649 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,730 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,353 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,665 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,714 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,936 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,021 |
| Flags of North and South America | 0 | - | 4.99 | 366,838 |
| Flags to Languages | 0 | - | 4.95 | 172,439 |
| Former Flags | 0 | - | 4.97 | 106,643 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,602 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,148 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,753 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,536 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,690 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,129 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,035 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,588 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,480 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,409 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,279 |
| Flag Maths | 0 | - | 4.78 | 57,672 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,321 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,934 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,432 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,344 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,266 |
| World Coats of Arms | 0 | - | 4.99 | 63,832 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,347 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,740 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,826 |
| Similar Flags #1 | 0 | - | 4.74 | 129,061 |
| Similar Flags #2 | 0 | - | 4.74 | 136,326 |
| Emoji Flags | 0 | - | 4.35 | 43,805 |
| Countries by Road Signs | 0 | - | 4.98 | 53,076 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,006 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,984 |
| Select the World Flags | 0 | - | 4.27 | 37,393 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,274 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,549 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,777 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,020 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,666 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,798 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,670 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,208 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,348 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,970 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,369 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,919 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,261 |
| Pixelated World Map | 0 | - | 5.00 | 142,394 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,027 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,359 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,257 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,667 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,923 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,249 |
| 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 | 69,548 |
| 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 | 55,402 |
| 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 | 255,031 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,806 |
| Flags of WW1 | 0 | - | 4.60 | 37,921 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,406 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,040 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,372 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,764 |
| Boundary Waters | 0 | - | 4.92 | 88,026 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,245 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,242 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,816 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,712 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,898,142 |
| Landlocked Countries | 0 | - | 4.99 | 413,352 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,305 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,051 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,996 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,973 |
| 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 | 38,800 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,334 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,738 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,747 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,273 |
| Merged Countries #2 | 0 | - | 4.96 | 98,445 |
| Merged Countries #6 | 0 | - | 4.91 | 72,688 |
| Merged Countries #7 | 0 | - | 4.92 | 81,931 |
| 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 | 47,781 |
| 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 | 42,295 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,177 |
| Islands by Picture | 0 | - | 4.29 | 105,851 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,145 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,969 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,563 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,915 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,538 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,935 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,439 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,034 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,670 |
| Island Countries | 0 | - | 4.99 | 707,513 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,469 |
| Himalayan Countries | 0 | - | 4.95 | 135,254 |
| Andean Countries | 0 | - | 4.94 | 82,774 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,185 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,126 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,851 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,559 |
| Danube Countries | 0 | - | 4.97 | 71,059 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,719 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,512 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,411 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,336 |
| European Landlocked Countries | 0 | - | 4.99 | 145,723 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,160 |
| Countries with the Most Species | 0 | - | 4.99 | 95,229 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,300 |
| 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 | 72,554 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,924 |
| Countries in the Alps | 0 | - | 4.86 | 116,777 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,530 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,202 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,989 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,397 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,121 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,975 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,540 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,730 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,148 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,029 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,186 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,026 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,423 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,715 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,728 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,009 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,617 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,240 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,741 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,129 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,554 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,579 |
| Largest Countries By Category | 0 | - | 4.97 | 156,710 |
| Countries by Countries | 0 | - | 4.96 | 62,234 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,336 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,955 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,319 |
| Merged Country Flags | 0 | - | 4.88 | 105,986 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,580 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,079 |
