| All Country Flags of the World | 0 | - | 5.00 | 3,600,247 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,526,000 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,234 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,545 |
| Flags with Crescents | 0 | - | 4.98 | 167,497 |
| Country Flag Trivia | 0 | - | 4.81 | 55,902 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,369 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,431 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,870 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,434 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,357 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,004 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,676 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,149 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,822 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,326 |
| Flags that are Red & White Only | 0 | - | 4.97 | 160,030 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,580 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,989 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,572 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,590 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,342 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,698 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,760 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,549 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,252 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,788 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,251 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,655 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,734 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,362 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,672 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,723 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,948 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,022 |
| Flags of North and South America | 0 | - | 4.99 | 366,899 |
| Flags to Languages | 0 | - | 4.95 | 172,451 |
| Former Flags | 0 | - | 4.97 | 106,652 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,604 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,149 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,760 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,545 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,692 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,202 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,041 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,599 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,497 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,418 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,304 |
| Flag Maths | 0 | - | 4.78 | 57,672 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,332 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,942 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,437 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,345 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,268 |
| World Coats of Arms | 0 | - | 4.99 | 63,839 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,357 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,747 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,843 |
| Similar Flags #1 | 0 | - | 4.74 | 129,069 |
| Similar Flags #2 | 0 | - | 4.74 | 136,337 |
| Emoji Flags | 0 | - | 4.35 | 43,809 |
| Countries by Road Signs | 0 | - | 4.98 | 53,082 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,014 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,988 |
| Select the World Flags | 0 | - | 4.27 | 37,397 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,278 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,550 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,781 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,025 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,670 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,803 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,673 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,212 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,353 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,970 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,376 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,226,093 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,324 |
| Pixelated World Map | 0 | - | 5.00 | 142,405 |
| Flags of Africa Quiz | 0 | - | 5.00 | 463,083 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,361 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,261 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,674 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,925 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,251 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,904 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,033 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,552 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,144 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,406 |
| Geography by Picture - H | 0 | - | 4.49 | 58,039 |
| Geography by Picture - N | 0 | - | 4.45 | 42,044 |
| Geography by Picture - R | 0 | - | 4.55 | 40,876 |
| Geography by Picture - T | 0 | - | 4.54 | 57,673 |
| Flags of Oceania | 0 | - | 5.00 | 255,058 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,819 |
| Flags of WW1 | 0 | - | 4.60 | 37,926 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,412 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,041 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,379 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,776 |
| Boundary Waters | 0 | - | 4.92 | 88,028 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,804 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,248 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,248 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,822 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,716 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,901,922 |
| Landlocked Countries | 0 | - | 4.99 | 413,391 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,432 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,054 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,997 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,976 |
| 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 | 38,802 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,345 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,738 |
| World Capitals Quiz | 0 | - | 5.00 | 5,030,106 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,708 |
| Merged Countries #2 | 0 | - | 4.96 | 98,454 |
| Merged Countries #6 | 0 | - | 4.91 | 72,693 |
| Merged Countries #7 | 0 | - | 4.92 | 81,938 |
| Geography by Picture - A | 0 | - | 4.39 | 60,046 |
| Geography by Picture - D | 0 | - | 4.15 | 45,486 |
| Geography by Picture - F | 0 | - | 4.31 | 50,822 |
| 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 | 58,754 |
| 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 | 46,905 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,179 |
| Islands by Picture | 0 | - | 4.29 | 105,857 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,148 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,977 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,578 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,923 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,606 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,946 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,593 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,051 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,725 |
| Island Countries | 0 | - | 4.99 | 707,535 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,492 |
| Himalayan Countries | 0 | - | 4.95 | 135,276 |
| Andean Countries | 0 | - | 4.94 | 82,784 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,192 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,140 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,857 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,565 |
| Danube Countries | 0 | - | 4.97 | 71,060 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,729 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,515 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,419 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,347 |
| European Landlocked Countries | 0 | - | 4.99 | 145,729 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,168 |
| Countries with the Most Species | 0 | - | 4.99 | 95,232 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,308 |
| 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 | 58,947 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,561 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,934 |
| Countries in the Alps | 0 | - | 4.86 | 116,787 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,533 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,215 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,991 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,402 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,131 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,975 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,548 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,734 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,169 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,031 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,188 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,029 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,429 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,721 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,733 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,014 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,618 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,243 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,748 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,165 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,592 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,587 |
| Largest Countries By Category | 0 | - | 4.97 | 156,718 |
| Countries by Countries | 0 | - | 4.96 | 62,238 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,346 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 61,957 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,322 |
| Merged Country Flags | 0 | - | 4.88 | 105,990 |
| All Countries by Population With a Map | 0 | - | 4.98 | 106,601 |
| Six Degrees of Separation - Countries #1 | 0 | - | 4.96 | 98,085 |
