| All Country Flags of the World | 0 | - | 5.00 | 3,599,410 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,848 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,159 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,490 |
| Flags with Crescents | 0 | - | 4.98 | 167,470 |
| Country Flag Trivia | 0 | - | 4.81 | 55,878 |
| Country Flags with Eagles - Picture Quiz | 0 | - | 4.98 | 102,351 |
| Country Flags with the Union Jack | 0 | - | 4.87 | 76,422 |
| Pixelated Flag Quiz | 0 | - | 4.98 | 85,850 |
| Flag Emblems Scavenger Hunt | 0 | - | 5.00 | 66,412 |
| Flags by Horizontal Stripes #1 | 0 | - | 4.84 | 84,345 |
| Country Flags with the Sun - Picture Quiz | 0 | - | 4.83 | 51,991 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 142,654 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 114,123 |
| Flags with the Most Stars | 0 | - | 4.91 | 134,784 |
| Country Flags with the Southern Cross | 0 | - | 4.83 | 61,311 |
| Flags that are Red & White Only | 0 | - | 4.97 | 159,576 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 144,545 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 73,912 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 46,554 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 67,571 |
| Country Flags with the Most Red | 0 | - | 4.98 | 119,322 |
| Country Flags with the Most Blue | 0 | - | 4.88 | 91,681 |
| Country Flags with the Most Green | 0 | - | 4.96 | 98,748 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 98,538 |
| Country Flags with the Most Yellow | 0 | - | 4.94 | 98,232 |
| Country Flags with the Most Black | 0 | - | 4.95 | 96,772 |
| Country Flags with the Most Stripes - Picture Quiz | 0 | - | 4.95 | 67,237 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 49,647 |
| Country Flags Slideshow | 0 | - | 4.91 | 46,729 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 98,353 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 79,659 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 64,709 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 43,934 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,019 |
| Flags of North and South America | 0 | - | 4.99 | 366,785 |
| Flags to Languages | 0 | - | 4.95 | 172,435 |
| Former Flags | 0 | - | 4.97 | 106,635 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,600 |
| Similar Country Flags - Multiple Choice Quiz | 0 | - | 4.94 | 50,146 |
| Country Flags With Blue Removed | 0 | - | 4.93 | 43,750 |
| Countries by Partial Flag Images #7 | 0 | - | 4.89 | 30,533 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,689 |
| 20 Random Country Flags | 0 | - | 4.99 | 604,082 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,034 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,583 |
| Flags of the Mediterranean | 0 | - | 4.94 | 147,471 |
| Country Flags Multiple Choice | 0 | - | 4.97 | 143,405 |
| Miscellaneous Flags Quiz | 0 | - | 4.42 | 278,270 |
| Flag Maths | 0 | - | 4.78 | 57,671 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 144,313 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 81,932 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,429 |
| 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 | 63,831 |
| Category Elimination - Country Flags #1 | 0 | - | 4.96 | 141,337 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 52,734 |
| Flag Coloring Book Puzzle #1 | 0 | - | 4.97 | 169,824 |
| Similar Flags #1 | 0 | - | 4.74 | 129,058 |
| Similar Flags #2 | 0 | - | 4.74 | 136,322 |
| Emoji Flags | 0 | - | 4.35 | 43,804 |
| Countries by Road Signs | 0 | - | 4.98 | 53,071 |
| Circular Cutouts from a World Map | 0 | - | 4.98 | 61,000 |
| Islands by Shape #2 | 0 | - | 4.88 | 58,982 |
| Select the World Flags | 0 | - | 4.27 | 37,392 |
| Random Circular Cutouts of the World Map | 0 | - | 4.96 | 75,271 |
| Country Flags with the Fewest Colours A-Z | 0 | - | 4.63 | 58,548 |
| Name a Valid Country Flag | 0 | - | 4.67 | 74,772 |
| Countries by Satellite Image #3 | 0 | - | 4.63 | 71,018 |
| Countries by Satellite Image #2 | 0 | - | 4.80 | 69,664 |
| Countries by Satellite Image #4 | 0 | - | 4.61 | 66,796 |
| Countries by Partial Satellite Image #2 | 0 | - | 4.55 | 46,667 |
| Countries by Partial Satellite Image #1 | 0 | - | 4.75 | 44,206 |
| Countries by Picture #1 | 0 | - | 4.53 | 98,340 |
| Countries by Picture #3 | 0 | - | 4.51 | 58,967 |
| Guess the Country by a Picture Hint | 0 | - | 4.42 | 47,364 |
| Satellite Images - Island Chains | 0 | - | 4.43 | 65,724 |
| Islands by Satellite Image #1 | 0 | - | 4.70 | 70,068 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,832 |
| Flags of Asia Quiz | 0 | - | 4.99 | 605,222 |
| Largest City by Island | 0 | - | 4.87 | 71,009 |
| African Island Countries | 0 | - | 4.96 | 100,746 |
| Pixelated World Map | 0 | - | 5.00 | 142,389 |
| Islands by Country #1 | 0 | - | 4.87 | 174,452 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,983 |
| Flag Coloring Book Puzzle #2 | 0 | - | 4.42 | 76,358 |
| Image to Country - Multiple Choice #2 | 0 | - | 4.61 | 43,256 |
| Satellite Images - Europe | 0 | - | 4.47 | 103,662 |
| European Cities by Picture #2 | 0 | - | 4.45 | 37,923 |
| Cities by Satellite #1 | 0 | - | 4.38 | 80,246 |
| Cities by Satellite #2 | 0 | - | 4.49 | 24,903 |
| Richest Island Countries | 0 | - | 4.84 | 99,477 |
| Countries by Picture #4 | 0 | - | 4.15 | 45,032 |
| Countries by Picture #2 | 0 | - | 4.37 | 69,543 |
| Countries by Picture #5 | 0 | - | 4.25 | 43,141 |
| Countries by Picture #6 | 0 | - | 4.15 | 35,910 |
| Geography by Picture - B | 0 | - | 4.42 | 55,401 |
| Geography by Picture - H | 0 | - | 4.49 | 58,036 |
| Geography by Picture - N | 0 | - | 4.45 | 42,043 |
| Geography by Picture - R | 0 | - | 4.55 | 40,874 |
| Geography by Picture - T | 0 | - | 4.54 | 57,670 |
| Flags of Oceania | 0 | - | 5.00 | 255,008 |
| Three Band Flags of Europe | 0 | - | 4.98 | 191,802 |
| Flags of WW1 | 0 | - | 4.60 | 37,920 |
| Name the Pixelated Landmark | 0 | - | 4.84 | 62,402 |
| Pixelated Africa Map | 0 | - | 4.98 | 99,037 |
| Pixelated Asia Map | 0 | - | 4.90 | 72,367 |
| Pixelated Europe Map | 0 | - | 4.88 | 121,758 |
| Boundary Waters | 0 | - | 4.92 | 88,025 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,798 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,241 |
| 100 Geography Questions of Varying Difficulty | 0 | - | 4.93 | 61,237 |
| "Second Best" Geography Edition #2 | 0 | - | 4.87 | 59,813 |
| "Second Best" Geography Edition #3 | 0 | - | 4.90 | 69,708 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,895,243 |
| Landlocked Countries | 0 | - | 4.99 | 413,320 |
| Save Humanity by Guessing Countries | 0 | - | 4.98 | 552,155 |
| Image to Country - Multiple Choice #1 | 0 | - | 4.70 | 51,049 |
| Satellite Images Quiz #1 | 0 | - | 4.46 | 128,990 |
| Satellite Images Quiz #2 | 0 | - | 4.63 | 108,970 |
| Satellite Images Quiz #4 | 0 | - | 4.55 | 88,636 |
| Satellite Images Quiz #5 | 0 | - | 4.48 | 49,639 |
| Satellite Images Quiz #6 | 0 | - | 4.50 | 38,798 |
| Cities by Picture #1 | 0 | - | 4.73 | 85,331 |
| Animals that Appear on a Coat of Arms | 0 | - | 4.49 | 24,736 |
| World Capitals Quiz | 0 | - | 5.00 | 5,029,518 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,714,013 |
| Merged Countries #2 | 0 | - | 4.96 | 98,442 |
| Merged Countries #6 | 0 | - | 4.91 | 72,685 |
| Merged Countries #7 | 0 | - | 4.92 | 81,928 |
| Geography by Picture - A | 0 | - | 4.39 | 60,044 |
| Geography by Picture - D | 0 | - | 4.15 | 45,482 |
| Geography by Picture - F | 0 | - | 4.31 | 50,819 |
| Geography by Picture - G | 0 | - | 4.38 | 47,780 |
| Geography by Picture - J | 0 | - | 4.16 | 38,332 |
| Geography by Picture - K | 0 | - | 4.28 | 33,011 |
| Geography by Picture - C | 0 | - | 4.31 | 56,901 |
| Geography by Picture - L | 0 | - | 4.37 | 58,749 |
| Geography by Picture - M | 0 | - | 4.14 | 40,342 |
| Geography by Picture - P | 0 | - | 4.24 | 42,294 |
| Geography by Picture - S | 0 | - | 4.38 | 46,903 |
| Islands by Satellite Image #2 | 0 | - | 4.35 | 19,072 |
| Islands by Shape #1 | 0 | - | 4.32 | 84,177 |
| Islands by Picture | 0 | - | 4.29 | 105,845 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,144 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 94,965 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 164,555 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 122,908 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,490 |
| Cities by Skyline Silhouette - Map Quiz | 0 | - | 4.93 | 122,934 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,570,350 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,023 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,645 |
| Island Countries | 0 | - | 4.99 | 707,495 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,452 |
| Himalayan Countries | 0 | - | 4.95 | 135,240 |
| Andean Countries | 0 | - | 4.94 | 82,766 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,179 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,118 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,849 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,554 |
| Danube Countries | 0 | - | 4.97 | 71,049 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,717 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,506 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,405 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,332 |
| European Landlocked Countries | 0 | - | 4.99 | 145,720 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,150 |
| Countries with the Most Species | 0 | - | 4.99 | 95,228 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,292 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,192 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,357 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,941 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,551 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,922 |
| Countries in the Alps | 0 | - | 4.86 | 116,772 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,527 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,194 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 77,986 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,393 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,117 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,972 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,536 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,727 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,134 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,024 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,185 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,025 |
| Asian Island Nations | 0 | - | 4.63 | 93,734 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,420 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,714 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,724 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,004 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,615 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,240 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,737 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,110 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,543 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,577 |
