| Countries With No Rivers | 0 | - | 4.96 | 76,026 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,376 |
| Countries with Fjords | 0 | - | 4.93 | 100,200 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,072 |
| 100 Longest Rivers in Europe - with a Map | 0 | - | 4.94 | 64,795 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,174 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,740 |
| North Sea Countries | 0 | - | 4.92 | 86,602 |
| Black Sea Countries | 0 | - | 4.87 | 60,341 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,016 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,110 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,953 |
| Megadiverse Countries | 0 | - | 4.97 | 133,897 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,705 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,227 |
| African Great Lakes | 0 | - | 4.82 | 65,153 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,793 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,605 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,309 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.88 | 86,413 |
| Capitals by River | 0 | - | 4.55 | 48,234 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,916,409 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,337 |
| Countries that Bordered the USSR | 0 | - | 4.93 | 164,489 |
| Countries Bordering Brazil | 0 | - | 4.96 | 131,066 |
| African Great Lake Countries with an Empty Map | 0 | - | 4.97 | 60,451 |
| 10 Longest Rivers in the United States | 0 | - | 4.85 | 38,805 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,401 |
| Rivers of the United States | 0 | - | 4.93 | 65,515 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,296 |
| Landlocked Countries | 0 | - | 4.99 | 413,565 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,486 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,716,261 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,031 |
| Biggest City by River | 0 | - | 4.41 | 52,695 |
| Landforms by Country | 0 | - | 4.52 | 51,916 |
| Countries That Border Russia | 0 | - | 4.98 | 458,912 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,062 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,626 |
| Countries Bordering France | 0 | - | 4.83 | 399,088 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,046 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,883 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,100 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,826 |
| Island Countries | 0 | - | 4.99 | 707,601 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,570 |
| Himalayan Countries | 0 | - | 4.95 | 135,338 |
| Andean Countries | 0 | - | 4.94 | 82,818 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,207 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,196 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,889 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,598 |
| Danube Countries | 0 | - | 4.97 | 71,073 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 115,755 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,532 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,463 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,382 |
| European Landlocked Countries | 0 | - | 4.99 | 145,745 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,198 |
| Countries with the Most Species | 0 | - | 4.99 | 95,238 |
| Countries 197 to 205 | 0 | - | 4.87 | 69,334 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,197 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,367 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,957 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,572 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,949 |
| Countries in the Alps | 0 | - | 4.86 | 116,817 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,557 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,248 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,000 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,413 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,155 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 94,997 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,571 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,744 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,274 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,045 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,194 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,040 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,449 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,737 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,749 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,053 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,635 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,252 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,765 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,264 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,664 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,599 |
| Largest Countries By Category | 0 | - | 4.97 | 156,751 |
| Countries by Countries | 0 | - | 4.96 | 62,251 |
| Top 10 European Countries by Coastline | 0 | - | 4.89 | 137,852 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,149 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,362,214 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,760 |
| One Border Countries - Shape Quiz | 0 | - | 4.84 | 64,505 |
| Merged Country Shapes Quiz #1 | 0 | - | 4.93 | 59,025 |
| Merged Country Shapes Quiz #2 | 0 | - | 4.92 | 59,829 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,396 |
| Northernmost Countries | 0 | - | 4.99 | 357,700 |
| Countries of South America | 0 | - | 5.00 | 914,628 |
| Countries of Oceania | 0 | - | 5.00 | 1,040,351 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,848,161 |
| "Land" Countries | 0 | - | 4.98 | 333,638 |
| Countries Bordering India | 0 | - | 4.98 | 162,601 |
| Countries that Border China | 0 | - | 4.96 | 261,816 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,450 |
| Countries that Border Poland | 0 | - | 4.99 | 171,350 |
| Merged Countries #2 | 0 | - | 4.96 | 98,477 |
| Merged Countries #6 | 0 | - | 4.91 | 72,707 |
| Merged Countries #7 | 0 | - | 4.92 | 81,957 |
| Rivers A-Z | 0 | - | 4.35 | 32,684 |
| Mekong River Countries Empty Map Quiz | 0 | - | 4.80 | 52,982 |
| Sea in the Answers | 0 | - | 4.10 | 48,558 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,997 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,616 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,180 |
| Countries with Megacities | 0 | - | 4.99 | 246,855 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,092 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 111,954 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,509 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 79,840 |
| Countries by Official Language | 0 | - | 4.95 | 192,763 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,118 |
| Countries in their Native Language | 0 | - | 4.99 | 196,627 |
| Independence from Whom | 0 | - | 4.99 | 209,683 |
| Subdivisions by Country | 0 | - | 4.86 | 50,064 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,741 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,792 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,918 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,427 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,858 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,654 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 61,996 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 92,992 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,141 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,210 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,743 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,561 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,413 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,491 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,502 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,671 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,021 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,324 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,343 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 103,981 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,945 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,738 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,849 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,057 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,271 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,941 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,333 |
| Widest Countries East to West | 0 | - | 4.92 | 128,600 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,217 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,204 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,562 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,683 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,626 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,036 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,050 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,581 |
| Countries with Double Letters | 0 | - | 4.97 | 93,384 |
| Countries that End in N | 0 | - | 4.94 | 156,808 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,677 |
| Countries with Six Letters | 0 | - | 4.93 | 210,356 |
| Countries with W | 0 | - | 4.97 | 158,222 |
| Countries with Z | 0 | - | 4.98 | 287,871 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,546 |
| Countries That End in U | 0 | - | 4.95 | 119,515 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,538 |
| Countries that End in O | 0 | - | 4.92 | 158,551 |
| Countries that End in R | 0 | - | 4.87 | 118,272 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,857 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,013 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,316 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,486 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,006 |
| Countries That End in Y | 0 | - | 4.90 | 185,199 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,366 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,682 |
| Countries that End in I | 0 | - | 4.94 | 134,410 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,189 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,192 |
| Countries That End in NIA | 0 | - | 4.92 | 109,008 |
| Countries That End in BIA | 0 | - | 4.92 | 147,712 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,053 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,480 |
| Countries That End in RIA | 0 | - | 4.93 | 126,078 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,005 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,175 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,516 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,885 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,354 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,927 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,116 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,639 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,811 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,806 |
