| Countries With No Rivers | 0 | - | 4.96 | 76,227 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,548 |
| Countries with Fjords | 0 | - | 4.93 | 100,480 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 115,032 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,425 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,201 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,457 |
| Megadiverse Countries | 0 | - | 4.96 | 134,547 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,845 |
| North Sea Countries | 0 | - | 4.92 | 86,803 |
| Black Sea Countries | 0 | - | 4.87 | 60,448 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,154 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,253 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,049 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,909 |
| African Great Lakes | 0 | - | 4.82 | 65,706 |
| Countries with Wild Tigers | 0 | - | 4.96 | 136,039 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,656 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,705 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,170,777 |
| Landlocked Countries | 0 | - | 4.99 | 416,747 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,394 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,741,169 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,755 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,077 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,822 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,979 |
| Himalayan Countries | 0 | - | 4.95 | 136,536 |
| Andean Countries | 0 | - | 4.95 | 83,507 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,772 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,031 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,438 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,039 |
| Danube Countries | 0 | - | 4.97 | 71,440 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,226 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,855 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,170 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,155 |
| European Landlocked Countries | 0 | - | 4.99 | 146,138 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,785 |
| Countries with the Most Species | 0 | - | 4.99 | 101,801 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,910 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,336 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,516 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,165 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,813 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,196 |
| Countries in the Alps | 0 | - | 4.86 | 117,342 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,914 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,926 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,260 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,750 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,833 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,261 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,997 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,999 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,812 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,335 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,371 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,206 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,735 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,008 |
| Countries with the Most Grassland | 0 | - | 4.93 | 77,014 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,735 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,902 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,434 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,258 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 241,056 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,594 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,838 |
| Largest Countries By Category | 0 | - | 4.97 | 157,277 |
| Countries by Countries | 0 | - | 4.96 | 62,597 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,092 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,856 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,471 |
| European Countries with One Border | 0 | - | 4.97 | 182,132 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,992 |
| Countries With Two or More Bear Species | 0 | - | 4.90 | 22,597 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,940 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,860 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,851 |
| Island Countries | 0 | - | 4.99 | 708,853 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,370,660 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,043,452 |
| Northernmost Countries | 0 | - | 4.99 | 359,417 |
| Countries of South America | 0 | - | 5.00 | 919,800 |
| Countries of Oceania | 0 | - | 5.00 | 1,046,919 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,859,030 |
| "Land" Countries | 0 | - | 4.98 | 334,640 |
| Countries That Border Russia | 0 | - | 4.98 | 460,370 |
| Countries Bordering France | 0 | - | 4.83 | 401,154 |
| Countries Bordering Germany | 0 | - | 4.99 | 368,024 |
| Biggest City by River | 0 | - | 4.41 | 52,753 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,416 |
| Landforms by Country | 0 | - | 4.52 | 51,939 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,050 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,672 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,734 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,364 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,892 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,239 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,989 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,440,078 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,879 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,311 |
| Countries with Megacities | 0 | - | 4.99 | 249,020 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,159 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,564 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,508 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,529 |
| Capitals by River | 0 | - | 4.55 | 48,270 |
| Countries by Official Language | 0 | - | 4.95 | 194,029 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,634 |
| Countries in their Native Language | 0 | - | 4.99 | 197,650 |
| Independence from Whom | 0 | - | 4.99 | 210,829 |
| Subdivisions by Country | 0 | - | 4.86 | 50,204 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,347 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,849 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,079 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,633 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,948 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,454 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,227 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,609 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,554 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,376 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,808 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,214 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,582 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,690 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,648 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,863 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,205 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,596 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,708 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,071 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,676 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,404 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,729 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,275 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,473 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,637 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,151 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,645 |
| Widest Countries East to West | 0 | - | 4.92 | 129,143 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,332 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,664 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,925 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,960 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,986 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,369 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,106 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,679 |
| Countries with Double Letters | 0 | - | 4.96 | 94,159 |
| Countries that End in N | 0 | - | 4.95 | 166,209 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,604 |
| Countries with Six Letters | 0 | - | 4.93 | 211,156 |
| Countries with W | 0 | - | 4.97 | 158,829 |
| Countries with Z | 0 | - | 4.98 | 288,797 |
| Countries with Letters Missing | 0 | - | 4.97 | 185,049 |
| Countries That End in U | 0 | - | 4.95 | 119,928 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,174 |
| Countries that End in O | 0 | - | 4.92 | 158,871 |
| Countries that End in R | 0 | - | 4.87 | 118,513 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,295 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,781 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,754 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,815 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,387 |
| Countries That End in Y | 0 | - | 4.90 | 185,433 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,846 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,097 |
| Countries that End in I | 0 | - | 4.94 | 134,677 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,700 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,415 |
| Countries That End in NIA | 0 | - | 4.92 | 109,297 |
| Countries That End in BIA | 0 | - | 4.93 | 148,571 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,431 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,774 |
| Countries That End in RIA | 0 | - | 4.93 | 126,349 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,338 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,099 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,874 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,209 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,792 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,146 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,440 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,948 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,001 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,213 |
| Countries that End in L | 0 | - | 4.94 | 156,297 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,916 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,070 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,715 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,567 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,621 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,335 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,814 |
| Five Least Populated Countries by Continent | 0 | - | 4.96 | 142,334 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 162,827 |
