| All Country Flags of the World | 0 | - | 5.00 | 3,635,457 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,532,144 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,090,243 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 731,752 |
| Flags with Crescents | 0 | - | 4.98 | 168,617 |
| Country Flag Trivia | 0 | - | 4.81 | 56,538 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 103,123 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 77,025 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 86,687 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,916 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,810 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 52,464 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 143,954 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,277 |
| Flags with the Most Stars | 0 | - | 4.91 | 135,811 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 61,874 |
| Flags that are Red & White Only | 0 | - | 4.97 | 163,713 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 145,447 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 75,466 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,148 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,137 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,979 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 92,169 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,277 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,029 |
| Country Flags with the Most Yellow | 0 | - | 4.95 | 98,739 |
| Country Flags with the Most Black | 0 | - | 4.95 | 97,206 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,522 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,926 |
| Country Flags Slideshow | 0 | - | 4.91 | 47,092 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,095 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,402 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,612 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 44,720 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,264 |
| Flags of North and South America | 0 | - | 4.99 | 370,749 |
| Former Flags | 0 | - | 4.97 | 107,268 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,805 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,264 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,160 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,498 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,846 |
| 20 Random Country Flags | 0 | - | 4.99 | 608,790 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,413 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,932 |
| Flags of the Mediterranean | 0 | - | 4.94 | 148,078 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 144,079 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 279,516 |
| Flag Maths | 0 | - | 4.64 | 57,715 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,030 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,243 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,644 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,577 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,397 |
| World Coats of Arms | 0 | - | 4.99 | 64,185 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 142,053 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 53,345 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 170,700 |
| Similar Flags #1 | 0 | - | 4.74 | 129,588 |
| Similar Flags #2 | 0 | - | 4.74 | 136,875 |
| Emoji Flags | 0 | - | 4.35 | 43,955 |
| Countries by Road Signs | 0 | - | 4.98 | 53,485 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,322 |
| Islands by Shape #2 | 0 | - | 4.88 | 59,135 |
| Countries by Partial Flag Images #8 | 0 | - | 4.74 | 23,765 |
| Select the World Flags | 0 | - | 4.27 | 37,594 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,611 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,757 |
| Name a Valid Country Flag | 0 | - | 4.68 | 75,290 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,221 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,889 |
| Countries by Satellite Image #4 | 0 | - | 4.63 | 67,008 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.53 | 46,807 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,373 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,691 |
| Countries by Picture #3 | 0 | - | 4.51 | 59,161 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,602 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,236,353 |
| Flags of Asia Quiz | 0 | - | 4.99 | 609,757 |
| Biggest Spanish-Speaking Cities | 0 | - | 4.91 | 127,697 |
| Biggest Cities by Language | 0 | - | 4.96 | 245,647 |
| Top 10 Languages Spoken in Europe | 0 | - | 4.96 | 217,651 |
| Pixelated World Map | 0 | - | 5.00 | 142,961 |
| Flags of Africa Quiz | 0 | - | 5.00 | 467,549 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,809 |
| Countries by Languages in 90 Seconds | 0 | - | 4.93 | 717,034 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,442 |
| Satellite Images - Europe | 0 | - | 4.47 | 104,129 |
| European Cities by Picture #2 | 0 | - | 4.46 | 38,089 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,693 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,987 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,174 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,772 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,258 |
| Countries by Picture #6 | 0 | - | 4.15 | 36,008 |
| Geography by Picture - B | 0 | - | 4.42 | 55,514 |
| Geography by Picture - H | 0 | - | 4.50 | 58,135 |
| Geography by Picture - N | 0 | - | 4.45 | 42,128 |
| Geography by Picture - R | 0 | - | 4.56 | 40,955 |
| Geography by Picture - T | 0 | - | 4.54 | 57,764 |
| Flags of Oceania | 0 | - | 5.00 | 257,335 |
| Three Band Flags of Europe | 0 | - | 4.98 | 192,634 |
| Flags of WW1 | 0 | - | 4.60 | 38,200 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,757 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,480 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,858 |
| Pixelated Europe Map | 0 | - | 4.88 | 122,318 |
| Boundary Waters | 0 | - | 4.92 | 88,286 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 35,006 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,710 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.94 | 61,922 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 60,193 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 70,107 |
| Countries with the Most Arabic Speakers | 0 | - | 4.92 | 79,802 |
| All Germanic Languages With a Map | 0 | - | 4.89 | 68,068 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,211,491 |
| Landlocked Countries | 0 | - | 4.99 | 417,256 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 563,545 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,311 |
| Satellite Images #1 | 0 | - | 4.46 | 129,213 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 109,166 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,802 |
| Satellite Images Quiz #5 | 0 | - | 4.52 | 49,804 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,897 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,707 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,792 |
| World Capitals Quiz | 0 | - | 5.00 | 5,054,144 |
| Countries With the Most Russian Speakers | 0 | - | 4.97 | 99,743 |
| Countries With the Most German Speakers | 0 | - | 4.89 | 95,618 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,745,209 |
| Merged Countries #2 | 0 | - | 4.96 | 98,785 |
| Merged Countries #6 | 0 | - | 4.90 | 73,016 |
| Merged Countries #7 | 0 | - | 4.93 | 82,280 |
| Geography by Picture - A | 0 | - | 4.39 | 60,149 |
| Geography by Picture - D | 0 | - | 4.15 | 45,574 |
| Geography by Picture - F | 0 | - | 4.31 | 50,911 |
| Geography by Picture - G | 0 | - | 4.38 | 47,879 |
| Geography by Picture - J | 0 | - | 4.16 | 38,396 |
| Geography by Picture - K | 0 | - | 4.29 | 33,067 |
| Geography by Picture - C | 0 | - | 4.31 | 57,001 |
| Geography by Picture - L | 0 | - | 4.37 | 58,860 |
| Geography by Picture - M | 0 | - | 4.14 | 40,396 |
| Geography by Picture - P | 0 | - | 4.24 | 42,370 |
| Geography by Picture - S | 0 | - | 4.38 | 46,983 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,268 |
| Islands by Picture | 0 | - | 4.29 | 106,485 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,425 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 95,435 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,387 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 123,650 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 327,540 |
| Biggest English-Speaking Cities | 0 | - | 4.45 | 151,895 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 123,477 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,579,311 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,092 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 404,212 |
| Island Countries | 0 | - | 4.99 | 709,090 |
| Sahara Desert Countries | 0 | - | 4.98 | 162,213 |
| Himalayan Countries | 0 | - | 4.95 | 136,760 |
| Andean Countries | 0 | - | 4.95 | 83,603 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,864 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,165 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,528 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,123 |
| Danube Countries | 0 | - | 4.97 | 71,487 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,301 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,903 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,297 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,296 |
| European Landlocked Countries | 0 | - | 4.99 | 146,195 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,876 |
| Countries with the Most Species | 0 | - | 4.99 | 102,377 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,004 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,355 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,535 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,204 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,856 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,234 |
| Countries in the Alps | 0 | - | 4.86 | 117,433 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,963 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,041 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,305 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,803 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,900 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,322 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,071 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,043 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,860 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,393 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,397 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,240 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,789 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,051 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,063 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,839 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,941 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,467 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,307 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,363 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,749 |
