| Countries with the Most Forest | 0 | - | 4.87 | 146,848 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,603 |
| Countries with Glaciers | 0 | - | 4.97 | 104,833 |
| Least-Forested Countries | 0 | - | 4.53 | 65,023 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,855 |
| Countries with Tropical Rainforest and Glaciers | 0 | - | 4.51 | 55,515 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,100 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,391 |
| Boundary Waters | 0 | - | 4.92 | 88,207 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,949 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,623 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,772 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,139,902 |
| Landlocked Countries | 0 | - | 4.99 | 416,361 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,378 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,058 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,349 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,249 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,502 |
| World Capitals Quiz | 0 | - | 5.00 | 5,048,544 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,788 |
| Himalayan Countries | 0 | - | 4.95 | 136,382 |
| Andean Countries | 0 | - | 4.95 | 83,419 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,681 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,907 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,371 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,975 |
| Danube Countries | 0 | - | 4.97 | 71,368 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,161 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,824 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,095 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,047 |
| European Landlocked Countries | 0 | - | 4.99 | 146,097 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,711 |
| Countries with the Most Species | 0 | - | 4.99 | 100,567 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,855 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,315 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,491 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,134 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,789 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,162 |
| Countries in the Alps | 0 | - | 4.86 | 117,295 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,874 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,819 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,233 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,711 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,778 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,224 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,951 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,973 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,776 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,310 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,341 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,192 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,699 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,971 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,980 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,651 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,871 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,406 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,201 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,829 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,490 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,794 |
| Largest Countries By Category | 0 | - | 4.97 | 157,214 |
| Countries by Countries | 0 | - | 4.96 | 62,566 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,837 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,069 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,057 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,738,447 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 145,001 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,613 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,887 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,319 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 207,153 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,830 |
| Longest International Borders | 0 | - | 4.99 | 264,255 |
| Countries with Three Borders | 0 | - | 4.96 | 36,335 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,766 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,852 |
| Demonym of Every Country | 0 | - | 4.91 | 58,889 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,586 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,577,172 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,697 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,553 |
| Island Countries | 0 | - | 4.99 | 708,717 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,961 |
| Northernmost Countries | 0 | - | 4.99 | 359,216 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,527 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,266 |
| Countries of South America | 0 | - | 5.00 | 919,274 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,157 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,857,703 |
| "Land" Countries | 0 | - | 4.98 | 334,444 |
| Top World Languages | 0 | - | 4.92 | 816,885 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,717 |
| Europe Map Quiz | 0 | - | 5.00 | 4,744,432 |
| All Country Flags of the World | 0 | - | 5.00 | 3,627,120 |
| Organs of the Human Body (with map) | 0 | - | 4.11 | 118,836 |
| Elements Named for Countries | 0 | - | 4.52 | 24,534 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,256 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,243 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,829 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,470 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,729 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,189 |
| Countries with Megacities | 0 | - | 4.99 | 248,766 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,048 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,501 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,421 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,448 |
| Biggest Cities in the World | 0 | - | 4.91 | 793,666 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,405 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,526 |
| Most Remote Capital Cities | 0 | - | 4.92 | 53,022 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 45,013 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,252 |
| Same Letter Country and Capital | 0 | - | 4.99 | 156,104 |
| Countries by Capital City | 0 | - | 5.00 | 67,399 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,697 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,220 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,602 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,660 |
| Moved Capital Cities | 0 | - | 4.96 | 73,854 |
| Countries by Official Language | 0 | - | 4.95 | 193,919 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,412 |
| Countries in their Native Language | 0 | - | 4.99 | 197,550 |
| Independence from Whom | 0 | - | 4.99 | 210,569 |
| Subdivisions by Country | 0 | - | 4.86 | 50,184 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,271 |
| Megadiverse Countries | 0 | - | 4.96 | 134,518 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,752 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,067 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,615 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,941 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,414 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,194 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,523 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,522 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,354 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,801 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,122 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,569 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,669 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,631 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,836 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,184 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,452 |
| World Map Quiz | 0 | - | 4.81 | 64,014 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,667 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,006 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,632 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,363 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,615 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,229 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,427 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,599 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,131 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,618 |
| Widest Countries East to West | 0 | - | 4.92 | 129,119 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,320 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,612 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,901 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,934 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,952 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,329 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,042 |
| Countries with the Highest Percentage of Forest | 0 | - | 4.62 | 37,734 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,663 |
| Countries with Double Letters | 0 | - | 4.96 | 93,944 |
| Countries that End in N | 0 | - | 4.94 | 161,808 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,374 |
| Countries with Six Letters | 0 | - | 4.93 | 210,964 |
| Countries with W | 0 | - | 4.97 | 158,643 |
| Countries with Z | 0 | - | 4.98 | 288,569 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,928 |
| Countries That End in U | 0 | - | 4.95 | 119,790 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,072 |
| Countries that End in O | 0 | - | 4.92 | 158,779 |
| Countries that End in R | 0 | - | 4.87 | 118,458 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,991 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,643 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,685 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,765 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,334 |
| Countries That End in Y | 0 | - | 4.90 | 185,365 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,775 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,036 |
| Countries that End in I | 0 | - | 4.94 | 134,628 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,641 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,380 |
| Countries That End in NIA | 0 | - | 4.92 | 109,261 |
| Countries That End in BIA | 0 | - | 4.93 | 148,498 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,381 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,735 |
| Countries That End in RIA | 0 | - | 4.93 | 126,299 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,288 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,000 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,813 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,162 |
