| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,635 |
| Natural Features of Countries #1 | 0 | - | 4.87 | 84,161 |
| Countries with Fjords | 0 | - | 4.94 | 101,467 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 116,197 |
| North Sea Countries | 0 | - | 4.92 | 87,737 |
| Black Sea Countries | 0 | - | 4.87 | 60,772 |
| Countries That Touch the Red Sea | 0 | - | 4.91 | 65,622 |
| Caspian Sea Countries | 0 | - | 4.91 | 63,719 |
| Countries With No Rivers | 0 | - | 4.96 | 77,201 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 67,399 |
| Megadiverse Countries | 0 | - | 4.96 | 143,832 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 116,027 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 75,034 |
| African Great Lakes | 0 | - | 4.82 | 67,038 |
| Top 10 European Countries by Coastline | 0 | - | 4.86 | 138,765 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,714 |
| Countries with Wild Tigers | 0 | - | 4.96 | 137,609 |
| Countries with Wild Penguins | 0 | - | 4.94 | 100,733 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 87,696 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,917,711 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,669 |
| Countries Bordering Brazil | 0 | - | 4.96 | 132,287 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,982 |
| Countries with the Most Sheep | 0 | - | 4.93 | 103,717 |
| Countries Bordering Ukraine, with an Empty Map | 0 | - | 4.86 | 96,845 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,601 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,877 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.83 | 227,989 |
| Landlocked Countries | 0 | - | 4.99 | 426,503 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 113,210 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,238 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,643 |
| Countries with the Most Wolves | 0 | - | 4.92 | 108,674 |
| European Countries with One Border | 0 | - | 4.97 | 183,887 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 180,607 |
| Landforms by Country | 0 | - | 4.52 | 52,026 |
| Countries That Border Russia | 0 | - | 4.98 | 464,645 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,631 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,940 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 89,489 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 113,319 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,634 |
| Countries Bordering France | 0 | - | 4.83 | 405,068 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,990 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,707 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,951 |
| Capitals by River | 0 | - | 4.55 | 48,392 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,836 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,978 |
| Island Countries | 0 | - | 4.99 | 712,744 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,528 |
| Himalayan Countries | 0 | - | 4.93 | 140,465 |
| Andean Countries | 0 | - | 4.94 | 85,606 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,743 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 127,202 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,308 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,542 |
| Danube Countries | 0 | - | 4.97 | 72,466 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,676 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,897 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,258 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,729 |
| European Landlocked Countries | 0 | - | 4.99 | 147,665 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,393 |
| Countries with the Most Species | 0 | - | 4.99 | 103,603 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,503 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,790 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,910 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,875 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,614 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 58,065 |
| Countries in the Alps | 0 | - | 4.87 | 118,854 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,784 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,986 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 79,009 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,088 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 117,037 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,318 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,469 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,916 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,462 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,228 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,912 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,780 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 71,375 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,606 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,845 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,947 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,975 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,654 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 75,485 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,741 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,940 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,292 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,550 |
| Largest Countries By Category | 0 | - | 4.97 | 158,946 |
| Countries by Countries | 0 | - | 4.96 | 63,706 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,395,176 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,149 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,316 |
| Northernmost Countries | 0 | - | 4.99 | 364,264 |
| Countries of South America | 0 | - | 5.00 | 933,351 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,333 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,877 |
| "Land" Countries | 0 | - | 4.98 | 338,535 |
| Countries Bordering India | 0 | - | 4.98 | 163,840 |
| Countries that Border Hungary | 0 | - | 4.98 | 105,036 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,975 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,718 |
| Countries Bordering Iran | 0 | - | 4.83 | 96,091 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,031 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,871 |
| Countries that Border China | 0 | - | 4.96 | 264,375 |
| Countries that Border Iraq | 0 | - | 4.97 | 109,134 |
| Countries Bordering Kenya | 0 | - | 4.87 | 63,165 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 78,211 |
| Countries Bordering Saudi Arabia | 0 | - | 4.96 | 133,851 |
| Countries Bordering Serbia | 0 | - | 4.96 | 93,133 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,925 |
| Countries Bordering Turkey | 0 | - | 4.98 | 117,920 |
| Countries Bordering Italy | 0 | - | 4.94 | 101,293 |
| Countries that Border Poland | 0 | - | 4.99 | 173,232 |
| Merged Countries #2 | 0 | - | 4.96 | 99,911 |
| Merged Countries #4 | 0 | - | 4.81 | 94,153 |
| Merged Countries #6 | 0 | - | 4.90 | 73,845 |
| Merged Countries #7 | 0 | - | 4.93 | 83,180 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,922 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,692 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,307 |
| Countries with Megacities | 0 | - | 4.99 | 267,428 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,978 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,225 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,305 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,327 |
| Countries by Official Language | 0 | - | 4.95 | 196,104 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,771 |
| Countries in their Native Language | 0 | - | 4.99 | 199,832 |
| Independence from Whom | 0 | - | 4.99 | 213,211 |
| Subdivisions by Country | 0 | - | 4.87 | 50,640 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 133,554 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 133,026 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 55,554 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,745 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,237 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,344 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,884 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 95,180 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 154,590 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 96,119 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,275 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 78,632 |
| Landmarks of Countries #1 | 0 | - | 4.89 | 108,430 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,462 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,172 |
| Smallest Countries with at Least One Border | 0 | - | 4.88 | 107,757 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,373 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 106,150 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 123,616 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,724 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.96 | 111,482 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 94,601 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,788 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,722 |
| Tallest Countries North to South | 0 | - | 4.85 | 130,838 |
| Widest Countries East to West | 0 | - | 4.92 | 130,776 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,615 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 187,302 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,534 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 95,096 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 149,035 |
| Countries with the Most Desert | 0 | - | 4.93 | 128,532 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,516 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,906 |
| Countries with Double Letters | 0 | - | 4.96 | 97,212 |
| Countries that End in N | 0 | - | 4.95 | 172,266 |
| Countries with Five Letters | 0 | - | 4.96 | 284,173 |
| Countries with Six Letters | 0 | - | 4.94 | 214,630 |
| Countries with W | 0 | - | 4.96 | 161,048 |
| Countries with Z | 0 | - | 4.98 | 292,600 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,385 |
| Countries That End in U | 0 | - | 4.95 | 121,243 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.97 | 135,193 |
| Countries that End in O | 0 | - | 4.92 | 160,267 |
| Countries that End in R | 0 | - | 4.87 | 119,215 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,978 |
| Countries Ending in "IA" | 0 | - | 4.99 | 209,960 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 171,224 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,875 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,807 |
| Countries That End in Y | 0 | - | 4.91 | 186,113 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,532 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 153,325 |
| Countries that End in I | 0 | - | 4.94 | 135,361 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 184,691 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 96,089 |
| Countries That End in NIA | 0 | - | 4.92 | 110,095 |
| Countries That End in BIA | 0 | - | 4.93 | 149,640 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 167,770 |
| Countries Whose Names Start with Saint | 0 | - | 4.88 | 119,811 |
| Countries That End in RIA | 0 | - | 4.93 | 127,089 |
