| One Country By Letter By Continent | 0 | - | 5.00 | 121,795 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,946,766 |
| Countries with the Most Christians | 0 | - | 4.92 | 141,533 |
| Countries Bordering "U" Countries | 0 | - | 4.82 | 24,090 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 86,972 |
| Landlocked Countries | 0 | - | 4.99 | 413,898 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,719,566 |
| Countries that Start with A | 0 | - | 4.97 | 2,147,623 |
| Countries that Start with B | 0 | - | 4.95 | 2,280,548 |
| Countries that Start with C | 0 | - | 4.96 | 1,810,897 |
| Countries that Start with D | 0 | - | 4.96 | 701,948 |
| Countries that Start with E | 0 | - | 4.95 | 1,367,985 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,337 |
| Countries that Start with H | 0 | - | 4.96 | 598,298 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,647 |
| Countries that Start with J | 0 | - | 4.98 | 596,345 |
| Countries that Start with K | 0 | - | 4.97 | 809,691 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,251 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,133 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,903 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,043 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,502 |
| Countries that Start with U | 0 | - | 4.97 | 900,135 |
| Countries that Start with V | 0 | - | 4.98 | 605,301 |
| Countries that Start with F | 0 | - | 4.83 | 612,463 |
| Countries that Start with M | 0 | - | 4.97 | 1,373,757 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,106 |
| Orthodox Countries | 0 | - | 4.91 | 130,448 |
| Battle to Country | 0 | - | 4.91 | 52,566 |
| Monarchies of Europe | 0 | - | 4.90 | 97,368 |
| Monarchies of Asia | 0 | - | 4.97 | 70,621 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,452 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 133,880 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 110,645 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 117,451 |
| Countries Closest to Spain A-Z | 0 | - | 4.99 | 107,714 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,973 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,477 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,216 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,020 |
| Island Countries | 0 | - | 4.99 | 707,743 |
| Sahara Desert Countries | 0 | - | 4.98 | 160,708 |
| Himalayan Countries | 0 | - | 4.95 | 135,466 |
| Andean Countries | 0 | - | 4.94 | 82,875 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,265 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,275 |
| Coffee Producing Countries | 0 | - | 4.81 | 65,957 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,643 |
| Danube Countries | 0 | - | 4.97 | 71,107 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 115,799 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,567 |
| Countries with the Worst Passports | 0 | - | 4.94 | 82,547 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,460 |
| European Landlocked Countries | 0 | - | 4.99 | 145,787 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,252 |
| Countries with the Most Species | 0 | - | 4.99 | 95,258 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,394 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,206 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,378 |
| Countries that Use the Peso | 0 | - | 4.88 | 58,974 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.89 | 72,593 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 56,972 |
| Countries in the Alps | 0 | - | 4.86 | 116,873 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,596 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,312 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,033 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,447 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,204 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,030 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,610 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,781 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,409 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,094 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,203 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,056 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,471 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,781 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,775 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,138 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,680 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,275 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 44,808 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 239,474 |
| World Countries - Blind Typing | 0 | - | 5.00 | 105,772 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,619 |
| Largest Countries By Category | 0 | - | 4.97 | 156,815 |
| Countries by Countries | 0 | - | 4.96 | 62,288 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,321 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,403 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.85 | 113,286 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,130 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,363,201 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 87,797 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,039,890 |
| Northernmost Countries | 0 | - | 4.99 | 357,905 |
| Countries of South America | 0 | - | 5.00 | 915,334 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,223 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,849,567 |
| "Land" Countries | 0 | - | 4.98 | 333,730 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,289 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,151 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,511 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.86 | 88,524 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.90 | 76,129 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 75,197 |
| Top 10 Richest Countries in Europe | 0 | - | 4.91 | 148,198 |
| Countries Closest to Germany A-Z | 0 | - | 4.98 | 26,949 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,136 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,435,651 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,797 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 171,472 |
| Countries with Megacities | 0 | - | 4.99 | 247,306 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,305 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,104 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 135,735 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,030 |
| Countries by Official Language | 0 | - | 4.95 | 192,834 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,205 |
| Countries in their Native Language | 0 | - | 4.99 | 196,701 |
| Independence from Whom | 0 | - | 4.99 | 209,782 |
| Subdivisions by Country | 0 | - | 4.86 | 50,081 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 130,819 |
| Countries in World War I | 0 | - | 4.88 | 226,676 |
| Megadiverse Countries | 0 | - | 4.97 | 133,928 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,476 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 129,865 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 54,932 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,439 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,868 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,705 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,027 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,099 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,175 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,228 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,752 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 75,648 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,441 |
| Hindu Countries | 0 | - | 4.86 | 49,613 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,512 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,518 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,706 |
| Most Dispersed Island Nations | 0 | - | 4.96 | 71,037 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 108,669 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,363 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,421 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,040 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 121,981 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,858 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 109,900 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.89 | 93,096 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,304 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 60,959 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,353 |
| Widest Countries East to West | 0 | - | 4.92 | 128,630 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,220 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,266 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,586 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,714 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,665 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,083 |
| Countries by Contribution to UN Budget | 0 | - | 4.86 | 69,057 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,592 |
| Countries with Double Letters | 0 | - | 4.96 | 93,443 |
| Countries that End in N | 0 | - | 4.94 | 156,947 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,752 |
| Countries with Six Letters | 0 | - | 4.93 | 210,417 |
| Countries with W | 0 | - | 4.97 | 158,272 |
| Countries with Z | 0 | - | 4.98 | 287,949 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,596 |
| Countries That End in U | 0 | - | 4.95 | 119,540 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 132,634 |
| Countries that End in O | 0 | - | 4.92 | 158,578 |
| Countries that End in R | 0 | - | 4.87 | 118,291 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,870 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,144 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,376 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,524 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,066 |
| Countries That End in Y | 0 | - | 4.90 | 185,223 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,427 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 151,725 |
| Countries that End in I | 0 | - | 4.94 | 134,445 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,258 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,218 |
| Countries That End in NIA | 0 | - | 4.92 | 109,030 |
| Countries That End in BIA | 0 | - | 4.92 | 147,741 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,106 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,516 |
| Countries That End in RIA | 0 | - | 4.93 | 126,107 |
| Most Common Words in Official Country Names | 0 | - | 4.85 | 110,040 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,250 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,546 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 124,912 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,397 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 73,948 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,153 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,679 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,541 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,827 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 52,854 |
