| Countries With No Rivers | 0 | - | 4.96 | 76,108 |
| Natural Features of Countries #1 | 0 | - | 4.86 | 83,428 |
| Countries with Fjords | 0 | - | 4.93 | 100,303 |
| Five Countries with the Longest Coastline by Continent | 0 | - | 4.97 | 114,859 |
| Countries Farthest From the Sea | 0 | - | 4.98 | 74,310 |
| Top 10 American Countries by Coastline | 0 | - | 4.96 | 88,124 |
| Capital Cities by Body of Water | 0 | - | 4.85 | 57,353 |
| Countries That Touch the Baltic Sea | 0 | - | 4.98 | 115,784 |
| North Sea Countries | 0 | - | 4.92 | 86,676 |
| Black Sea Countries | 0 | - | 4.87 | 60,377 |
| Countries That Touch the Red Sea | 0 | - | 4.90 | 65,072 |
| Caspian Sea Countries | 0 | - | 4.90 | 63,158 |
| Countries with the Shortest Coastlines | 0 | - | 4.89 | 66,990 |
| Megadiverse Countries | 0 | - | 4.97 | 134,008 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,511 |
| Countries That Border Russia | 0 | - | 4.98 | 459,638 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 124,968 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 153,424 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,592 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,191 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 82,747 |
| Countries Bordering France | 0 | - | 4.83 | 400,353 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,461 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,144 |
| African Great Lakes | 0 | - | 4.82 | 65,378 |
| Countries with Wild Tigers | 0 | - | 4.96 | 135,811 |
| Countries with Wild Penguins | 0 | - | 4.94 | 99,455 |
| Countries with the Most Venomous Animal Species | 0 | - | 4.87 | 86,553 |
| Countries Bordering India | 0 | - | 4.98 | 162,965 |
| Countries that Border Hungary | 0 | - | 4.98 | 103,800 |
| Countries Bordering Austria | 0 | - | 4.97 | 117,893 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 69,966 |
| Countries Bordering Iran | 0 | - | 4.83 | 94,884 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,712 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,273 |
| Countries that Border China | 0 | - | 4.96 | 262,070 |
| Countries that Border Iraq | 0 | - | 4.97 | 107,937 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,586 |
| Countries Bordering Myanmar | 0 | - | 4.87 | 77,160 |
| Countries Bordering Saudi Arabia | 0 | - | 4.95 | 118,300 |
| Countries Bordering Serbia | 0 | - | 4.96 | 91,885 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,337 |
| Countries Bordering Turkey | 0 | - | 4.98 | 116,606 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,541 |
| Countries that Border Poland | 0 | - | 4.99 | 171,545 |
| Merged Countries #2 | 0 | - | 4.96 | 98,566 |
| Merged Countries #6 | 0 | - | 4.90 | 72,814 |
| Merged Countries #7 | 0 | - | 4.92 | 82,058 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,018,355 |
| Natural Features of Countries #2 | 0 | - | 4.55 | 37,357 |
| Countries with the Most Sheep | 0 | - | 4.92 | 102,571 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,018 |
| Landlocked Countries | 0 | - | 4.99 | 414,863 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,726,832 |
| Countries by Borders, Bordering Sea, Capital Proximity, Official Language or Currency in 30 Seconds | 0 | - | 4.95 | 237,111 |
| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 225,507 |
| Countries that Catch the Most Fish | 0 | - | 4.90 | 111,668 |
| Countries with the Most Wolves | 0 | - | 4.92 | 107,235 |
| European Countries with One Border | 0 | - | 4.97 | 181,826 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 178,726 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,413 |
| Biggest City by River | 0 | - | 4.41 | 52,713 |
| Cities on a Map of the Great Lakes | 0 | - | 4.41 | 44,351 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,566 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,476 |
| Island Countries | 0 | - | 4.99 | 708,094 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,089 |
| Himalayan Countries | 0 | - | 4.95 | 135,804 |
| Andean Countries | 0 | - | 4.94 | 83,078 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,409 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,511 |
| Coffee Producing Countries | 0 | - | 4.81 | 66,109 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,772 |
| Danube Countries | 0 | - | 4.97 | 71,213 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,937 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,661 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,761 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,671 |
| European Landlocked Countries | 0 | - | 4.99 | 145,908 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,424 |
| Countries with the Most Species | 0 | - | 4.99 | 95,314 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,571 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,245 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,421 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,033 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,677 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,043 |
| Countries in the Alps | 0 | - | 4.86 | 117,035 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,704 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,494 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,127 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,536 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,324 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,106 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,731 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,862 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,644 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,170 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,248 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,112 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,572 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,848 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,852 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,347 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,758 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,330 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,969 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,959 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,065 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,694 |
| Largest Countries By Category | 0 | - | 4.97 | 156,949 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,365,658 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,886 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,142 |
| Northernmost Countries | 0 | - | 4.99 | 358,436 |
| Landforms by Country | 0 | - | 4.52 | 51,924 |
| Countries of South America | 0 | - | 5.00 | 916,947 |
| Countries of Oceania | 0 | - | 5.00 | 1,043,098 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,852,592 |
| "Land" Countries | 0 | - | 4.98 | 333,972 |
| Bodies of Water around the Arabian Peninsula | 0 | - | 4.74 | 35,939 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,437,200 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,168 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,761 |
| Countries with Megacities | 0 | - | 4.99 | 247,902 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,642 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,271 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,026 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,225 |
| Countries by Official Language | 0 | - | 4.95 | 193,044 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,512 |
| Countries in their Native Language | 0 | - | 4.99 | 196,891 |
| Independence from Whom | 0 | - | 4.99 | 210,019 |
| Subdivisions by Country | 0 | - | 4.86 | 50,119 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,975 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,050 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,981 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,489 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,890 |
| Countries That Touch the Adriatic Sea | 0 | - | 4.96 | 70,844 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,814 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,086 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,263 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,320 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,271 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,773 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,814 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,482 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,565 |
| Top 10 European Countries by Coastline | 0 | - | 4.87 | 137,947 |
| Top 10 Asian Countries by Coastline | 0 | - | 4.92 | 96,201 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,492 |
| One Border Countries - Shape Quiz | 0 | - | 4.84 | 64,569 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,679 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,440 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,169 |
| Countries With the Most Languages | 0 | - | 4.90 | 200,162 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,056 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,253 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,452 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,038 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,493 |
| Widest Countries East to West | 0 | - | 4.92 | 128,983 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,272 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,410 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,628 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,820 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,763 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,177 |
| Countries by Contribution to UN Budget | 0 | - | 4.89 | 75,730 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,631 |
| Countries with Double Letters | 0 | - | 4.97 | 93,614 |
| Countries that End in N | 0 | - | 4.94 | 157,083 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,940 |
| Countries with Six Letters | 0 | - | 4.93 | 210,614 |
| Countries with W | 0 | - | 4.97 | 158,378 |
| Countries with Z | 0 | - | 4.98 | 288,150 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,708 |
| Countries That End in U | 0 | - | 4.95 | 119,594 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,817 |
| Countries that End in O | 0 | - | 4.92 | 158,629 |
| Countries that End in R | 0 | - | 4.87 | 118,352 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,914 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,342 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,497 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,611 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,159 |
| Countries That End in Y | 0 | - | 4.90 | 185,268 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,563 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,846 |
| Countries that End in I | 0 | - | 4.94 | 134,520 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,402 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,276 |
| Countries That End in NIA | 0 | - | 4.92 | 109,088 |
| Countries That End in BIA | 0 | - | 4.92 | 147,821 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,212 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,603 |
| Countries That End in RIA | 0 | - | 4.93 | 126,177 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,136 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,603 |
