| Metals of Antiquity | 0 | - | 4.94 | 93,076 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,582 |
| Elements Named for Countries | 0 | - | 4.52 | 24,506 |
| Boundary Waters | 0 | - | 4.92 | 88,161 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.85 | 34,913 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 95,546 |
| Countries with Glaciers | 0 | - | 4.97 | 104,790 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,811 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,365 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,087,678 |
| Landlocked Countries | 0 | - | 4.99 | 415,708 |
| Name the Constellations - With a Map | 0 | - | 4.92 | 35,748 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,307 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 165,152 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 123,403 |
| World Capitals Quiz | 0 | - | 5.00 | 5,044,905 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,453 |
| Himalayan Countries | 0 | - | 4.95 | 136,105 |
| Andean Countries | 0 | - | 4.95 | 83,233 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,551 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,721 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,239 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,877 |
| Danube Countries | 0 | - | 4.97 | 71,297 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,051 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,749 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,949 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,894 |
| European Landlocked Countries | 0 | - | 4.99 | 146,002 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,592 |
| Countries with the Most Species | 0 | - | 4.99 | 95,368 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,723 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,282 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,451 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,089 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,739 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,111 |
| Countries in the Alps | 0 | - | 4.86 | 117,175 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,362 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,798 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,671 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,180 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,624 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,426 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,174 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,854 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,920 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,722 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,248 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,293 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,160 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,649 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,027 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,910 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,920 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,542 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,821 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,364 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,095 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,470 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,309 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,753 |
| Largest Countries By Category | 0 | - | 4.97 | 157,100 |
| Countries by Countries | 0 | - | 4.96 | 62,477 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,738 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,044 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,995 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,733,715 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 144,928 |
| Western Europe Map Quiz | 0 | - | 4.86 | 93,565 |
| Tourist Attraction by Negative Review | 0 | - | 4.86 | 81,751 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,301 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,995 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 127,785 |
| Longest International Borders | 0 | - | 4.99 | 264,176 |
| Countries with Three Borders | 0 | - | 4.96 | 36,308 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 41,728 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 47,812 |
| Demonym of Every Country | 0 | - | 4.91 | 58,831 |
| Elements by Picture | 0 | - | 4.28 | 69,684 |
| Pacific Ocean General Knowledge | 0 | - | 4.69 | 36,236 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,123 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,681 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,119 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,990 |
| Island Countries | 0 | - | 4.99 | 708,473 |
| Least-Forested Countries | 0 | - | 4.53 | 64,991 |
| Tropical Rainforest Countries | 0 | - | 4.68 | 81,827 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,216 |
| Northernmost Countries | 0 | - | 4.99 | 358,899 |
| Countries with the Most Mangroves | 0 | - | 4.53 | 34,517 |
| Worst Plastic Polluting Countries | 0 | - | 4.51 | 66,225 |
| Countries of South America | 0 | - | 5.00 | 918,373 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,971 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,855,596 |
| "Land" Countries | 0 | - | 4.98 | 334,190 |
| Top World Languages | 0 | - | 4.92 | 815,954 |
| Northernmost Countries Without Glaciers | 0 | - | 4.61 | 36,092 |
| Analogies of Countries #1 | 0 | - | 4.88 | 68,238 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 103,768 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,005 |
| Countries with Megacities | 0 | - | 4.99 | 248,422 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,901 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,410 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,288 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,350 |
| Global Cities on a World Map | 0 | - | 4.93 | 135,286 |
| Northernmost Capital Cities | 0 | - | 4.98 | 109,420 |
| Most Remote Capital Cities | 0 | - | 4.92 | 52,959 |
| Capital Cities: Ports and Saints | 0 | - | 4.96 | 44,926 |
| Capitals with the Shortest Names | 0 | - | 4.97 | 108,128 |
| Same Letter Country and Capital | 0 | - | 4.99 | 155,985 |
| Countries by Capital City | 0 | - | 5.00 | 67,242 |
| Capital Cities Based on First Two Letters | 0 | - | 4.85 | 76,615 |
| Capitals of the Largest Countries by Area | 0 | - | 4.97 | 114,147 |
| Divided Capital Name Puzzle #1 | 0 | - | 4.99 | 83,601 |
| Moved Capital Cities | 0 | - | 4.96 | 73,800 |
| Countries by Official Language | 0 | - | 4.95 | 193,438 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,964 |
| Countries in their Native Language | 0 | - | 4.99 | 197,192 |
| Independence from Whom | 0 | - | 4.99 | 210,265 |
| Subdivisions by Country | 0 | - | 4.86 | 50,158 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,146 |
| Megadiverse Countries | 0 | - | 4.96 | 134,485 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,376 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,035 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,569 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,923 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,927 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,151 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,410 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,476 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,319 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,791 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,004 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,538 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,643 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,610 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,815 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,139 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,368,059 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,242 |
| World Map Quiz | 0 | - | 4.81 | 63,885 |
| Recognized, Non-Recognized Countries, and Territories of the World | 0 | - | 5.00 | 153,891 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,629 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,869 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,572 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,291 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,456 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,160 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,359 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,548 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,102 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,566 |
| Widest Countries East to West | 0 | - | 4.92 | 129,066 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,299 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,542 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,667 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,895 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,880 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,269 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,879 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,652 |
| Countries with Double Letters | 0 | - | 4.96 | 93,760 |
| Countries that End in N | 0 | - | 4.94 | 157,198 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,131 |
| Countries with Six Letters | 0 | - | 4.93 | 210,790 |
| Countries with W | 0 | - | 4.97 | 158,469 |
| Countries with Z | 0 | - | 4.98 | 288,336 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,820 |
| Countries That End in U | 0 | - | 4.95 | 119,638 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,947 |
| Countries that End in O | 0 | - | 4.92 | 158,677 |
| Countries that End in R | 0 | - | 4.87 | 118,396 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,948 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,493 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,597 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,694 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,250 |
| Countries That End in Y | 0 | - | 4.90 | 185,306 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,676 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,958 |
| Countries that End in I | 0 | - | 4.94 | 134,570 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,544 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,335 |
| Countries That End in NIA | 0 | - | 4.92 | 109,166 |
| Countries That End in BIA | 0 | - | 4.92 | 148,074 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,310 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,674 |
| Countries That End in RIA | 0 | - | 4.93 | 126,226 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,214 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,842 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,731 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,081 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,641 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,055 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,324 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,837 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,736 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,920 |
