| Countries of the World Quiz | 0 | - | 5.00 | 47,438,230 |
| Landlocked Countries | 0 | - | 4.99 | 420,201 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,765,870 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,572 |
| Himalayan Countries | 0 | - | 4.95 | 137,980 |
| Andean Countries | 0 | - | 4.95 | 84,205 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,427 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,162 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,066 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,509 |
| Danube Countries | 0 | - | 4.97 | 71,791 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,733 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,185 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,912 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,188 |
| European Landlocked Countries | 0 | - | 4.99 | 146,932 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,324 |
| Countries with the Most Species | 0 | - | 4.99 | 103,064 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,494 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,486 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,644 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,420 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,099 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,485 |
| Countries in the Alps | 0 | - | 4.87 | 117,919 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 98,677 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,645 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,527 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,421 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,265 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,819 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,363 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,436 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,312 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,058 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,679 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,553 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,404 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,042 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,325 |
| Countries by Satellite Image #1 | 0 | - | 4.89 | 145,697 |
| Countries by Satellite Image #5 | 0 | - | 4.89 | 82,596 |
| Countries by Partial Satellite Image #3 | 0 | - | 4.83 | 48,883 |
| Countries by Partial Flag Images #1 | 0 | - | 4.96 | 144,709 |
| Countries by Partial Flag Images #3 | 0 | - | 4.98 | 115,958 |
| Flags with the Most Stars | 0 | - | 4.91 | 136,427 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,336 |
| Country Flags with the Southern Cross | 0 | - | 4.81 | 62,271 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,474 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,149 |
| Flags that are Red & White Only | 0 | - | 4.97 | 164,330 |
| Country Flags that are Red, White, and Blue Only | 0 | - | 4.93 | 146,023 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,667 |
| Flags of the Countries with Four Letters | 0 | - | 4.94 | 76,148 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,766 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,032 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,597 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,080 |
| Largest Countries By Category | 0 | - | 4.97 | 157,876 |
| Countries by Countries | 0 | - | 4.97 | 62,984 |
| Four Countries with Similar Flags #2 | 0 | - | 4.92 | 47,547 |
| Four Countries with Similar Flags #1 | 0 | - | 4.97 | 68,519 |
| Pixelated World Map | 0 | - | 5.00 | 143,367 |
| Country Flags with the Most Red | 0 | - | 4.98 | 120,455 |
| Country Flags with the Most Blue | 0 | - | 4.89 | 92,520 |
| Country Flags with the Most White | 0 | - | 4.85 | 138,428 |
| Country Flags with the Most Green | 0 | - | 4.96 | 99,620 |
| Country Flags with the Most Orange | 0 | - | 4.96 | 99,401 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,201 |
| Country Flags with the Most Colours A-Z | 0 | - | 4.95 | 50,105 |
| Countries by Partial Flag Images #2 | 0 | - | 4.97 | 99,423 |
| Countries by Partial Flag Images #4 | 0 | - | 4.91 | 80,745 |
| Countries by Partial Flag Images #5 | 0 | - | 4.98 | 65,956 |
| Countries by Partial Flag Images #6 | 0 | - | 4.89 | 45,054 |
| Countries by Partial Flag Images #7 | 0 | - | 4.88 | 31,876 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,477 |
| Countries by Coat of Arms #1 | 0 | - | 4.93 | 72,752 |
| Countries by Coat of Arms #2 | 0 | - | 4.81 | 41,494 |
| World Coats of Arms | 0 | - | 4.99 | 64,494 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 907,022 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 416,689 |
| Every Country Shape | 0 | - | 5.00 | 465,135 |
| Countries With Blue and White Flags | 0 | - | 4.90 | 98,457 |
| Country Flags that are White, Red and Green Only | 0 | - | 4.86 | 35,942 |
| Country Flags With Blue Removed | 0 | - | 4.92 | 44,441 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,062 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,968 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,081 |
| Island Countries | 0 | - | 4.99 | 710,281 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,569 |
| Northernmost Countries | 0 | - | 4.99 | 361,109 |
| Countries of South America | 0 | - | 5.00 | 924,730 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,617 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,062 |
| "Land" Countries | 0 | - | 4.98 | 336,126 |
| Flags of Countries With More Than 100 Million People | 0 | - | 4.97 | 159,241 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,154 |
| World Map without 12 Countries #3 | 0 | - | 4.98 | 138,193 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,378,971 |
| Flags of Countries of the World in 1910 | 0 | - | 4.96 | 78,836 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,881 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,481 |
| Country Shapes Quiz #5 | 0 | - | 4.93 | 164,135 |
| Recognize Countries by Tripoint Maps #1 | 0 | - | 4.99 | 36,736 |
| Country Shapes in the World Map #3 | 0 | - | 4.99 | 104,441 |
| Country Shapes in the World Map #2 | 0 | - | 4.99 | 111,490 |
| Country Shapes in the World Map #1 | 0 | - | 4.99 | 122,143 |
| Country Shapes in the World Map #4 | 0 | - | 4.98 | 108,298 |
| Country Shapes in the World Map #6 | 0 | - | 4.98 | 80,641 |
| Country Shapes in the World Map #7 | 0 | - | 4.99 | 58,173 |
| Country Shapes in the World Map #5 | 0 | - | 4.98 | 85,866 |
| Country Flags with Five Stars - Picture Quiz | 0 | - | 4.93 | 30,953 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,396 |
| Countries with Megacities | 0 | - | 4.99 | 263,108 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,237 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,203 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,526 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,239 |
| Countries by Official Language | 0 | - | 4.95 | 194,888 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,876 |
| Countries in their Native Language | 0 | - | 4.99 | 198,420 |
| Independence from Whom | 0 | - | 4.99 | 211,661 |
| Subdivisions by Country | 0 | - | 4.86 | 50,345 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,941 |
| Megadiverse Countries | 0 | - | 4.96 | 134,854 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,753 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,243 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,832 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,055 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,875 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,462 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,184 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,920 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,553 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,032 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,305 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,784 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,077 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,854 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,241 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,406 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,586 |
| World Map Quiz | 0 | - | 4.81 | 64,818 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,170 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,742 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,069 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,797 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,705 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,682 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,816 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,949 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,340 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,414 |
| Widest Countries East to West | 0 | - | 4.92 | 129,482 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,413 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,131 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,050 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,620 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,385 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,679 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,302 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,758 |
| Countries with Double Letters | 0 | - | 4.97 | 95,344 |
| Countries that End in N | 0 | - | 4.95 | 170,382 |
| Countries with Five Letters | 0 | - | 4.96 | 281,255 |
| Countries with Six Letters | 0 | - | 4.94 | 212,789 |
| Countries with W | 0 | - | 4.97 | 159,700 |
| Countries with Z | 0 | - | 4.98 | 290,605 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,966 |
| Countries That End in U | 0 | - | 4.95 | 120,514 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,978 |
| Countries that End in O | 0 | - | 4.92 | 159,283 |
| Countries that End in R | 0 | - | 4.87 | 118,802 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,568 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,580 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,312 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,208 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,820 |
| Countries That End in Y | 0 | - | 4.91 | 185,715 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,510 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,592 |
| Countries that End in I | 0 | - | 4.94 | 134,939 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,705 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,659 |
| Countries That End in NIA | 0 | - | 4.92 | 109,615 |
| Countries That End in BIA | 0 | - | 4.93 | 148,970 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,871 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,194 |
| Countries That End in RIA | 0 | - | 4.93 | 126,630 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,767 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,056 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,399 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,792 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,320 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,408 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,788 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,356 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 125,281 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,284 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,703 |
