| Countries by Capitals and Borders in 90 Seconds | 0 | - | 4.84 | 226,617 |
| European Countries with One Border | 0 | - | 4.97 | 182,811 |
| European Countries with the Fewest Borders | 0 | - | 4.97 | 179,610 |
| Countries with the Most Borders A-Z | 0 | - | 4.98 | 125,336 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,209 |
| Countries Bordering the Mediterranean - Map Quiz | 0 | - | 4.87 | 89,049 |
| Countries by Bordering Flags #1 | 0 | - | 4.90 | 112,757 |
| Countries by Bordering Flags #2 | 0 | - | 4.86 | 83,179 |
| Countries Bordering France | 0 | - | 4.83 | 402,619 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,475 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,426 |
| Countries with the Highest Carbon Dioxide Emissions | 0 | - | 4.97 | 109,720 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,470,890 |
| Countries Bordering India | 0 | - | 4.98 | 163,444 |
| Countries Bordering Austria | 0 | - | 4.97 | 118,335 |
| Countries Bordering Tanzania | 0 | - | 4.96 | 70,159 |
| Countries Bordering D.R. Congo | 0 | - | 4.97 | 64,538 |
| Countries that Border China | 0 | - | 4.96 | 263,208 |
| Countries Bordering Kenya | 0 | - | 4.87 | 62,878 |
| Countries Bordering South Africa | 0 | - | 4.97 | 92,773 |
| Countries Bordering Italy | 0 | - | 4.94 | 100,878 |
| Merged Countries #2 | 0 | - | 4.96 | 99,095 |
| Merged Countries #6 | 0 | - | 4.90 | 73,300 |
| Merged Countries #7 | 0 | - | 4.93 | 82,645 |
| Landlocked Countries | 0 | - | 4.99 | 420,675 |
| Countries with the Most HIV | 0 | - | 4.46 | 44,452 |
| Countries with the Most Malaria Deaths | 0 | - | 4.45 | 45,302 |
| Countries with Glaciers | 0 | - | 4.97 | 105,432 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,567 |
| Countries Reducing Carbon Dioxide Emissions the Most | 0 | - | 4.89 | 64,662 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,768,530 |
| Countries of Africa by Borders in 30 Seconds | 0 | - | 4.43 | 355,863 |
| Asian Countries by Borders in 30 Seconds | 0 | - | 4.45 | 415,183 |
| Monarchies Bordering Monarchies | 0 | - | 4.81 | 60,256 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,791 |
| Himalayan Countries | 0 | - | 4.95 | 138,143 |
| Andean Countries | 0 | - | 4.95 | 84,291 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,517 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,383 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,147 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,590 |
| Danube Countries | 0 | - | 4.97 | 71,848 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,819 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,256 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,006 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,458 |
| European Landlocked Countries | 0 | - | 4.99 | 146,986 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,399 |
| Countries with the Most Species | 0 | - | 4.99 | 103,103 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,552 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,511 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,665 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,454 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,127 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,518 |
| Countries in the Alps | 0 | - | 4.87 | 117,973 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,700 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,744 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,553 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,465 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,330 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,839 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,485 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,353 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,085 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,711 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,571 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,425 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,080 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,361 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,371 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,573 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,185 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,701 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,836 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,246 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,709 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,118 |
| Largest Countries By Category | 0 | - | 4.97 | 157,950 |
| Countries by Countries | 0 | - | 4.97 | 63,028 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,520 |
| Walking Across Borders with Hints #1 | 0 | - | 4.95 | 108,971 |
| Random Countries by Borders | 0 | - | 4.99 | 82,458 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,416 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,090 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,331 |
| Island Countries | 0 | - | 4.99 | 710,476 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,110 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,065 |
| Northernmost Countries | 0 | - | 4.99 | 361,298 |
| Countries of South America | 0 | - | 5.00 | 925,284 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,294 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,872,376 |
| "Land" Countries | 0 | - | 4.98 | 336,631 |
| Countries That Border Russia | 0 | - | 4.98 | 461,808 |
| Asian Countries with the Fewest Borders | 0 | - | 4.74 | 106,986 |
| Countries Bordering the EU | 0 | - | 4.77 | 72,873 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,946 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,401 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,500 |
| Countries with Megacities | 0 | - | 4.99 | 263,531 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,353 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,272 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,635 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,308 |
| Countries by Official Language | 0 | - | 4.95 | 194,968 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,984 |
| Countries in their Native Language | 0 | - | 4.99 | 198,477 |
| Independence from Whom | 0 | - | 4.99 | 211,748 |
| Subdivisions by Country | 0 | - | 4.86 | 50,370 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,010 |
| Megadiverse Countries | 0 | - | 4.96 | 134,901 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,822 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,268 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,852 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,061 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,936 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,490 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,238 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,948 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,570 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,045 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,370 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,799 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,104 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,878 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,206 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,813 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,110 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,841 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,817 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,743 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,878 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,180 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,361 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,453 |
| Widest Countries East to West | 0 | - | 4.92 | 129,521 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,418 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,189 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,068 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,646 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,424 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,716 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,316 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,767 |
| Countries with Double Letters | 0 | - | 4.97 | 95,566 |
| Countries that End in N | 0 | - | 4.95 | 170,583 |
| Countries with Five Letters | 0 | - | 4.96 | 281,596 |
| Countries with Six Letters | 0 | - | 4.94 | 212,988 |
| Countries with W | 0 | - | 4.97 | 159,891 |
| Countries with Z | 0 | - | 4.98 | 290,823 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,184 |
| Countries That End in U | 0 | - | 4.95 | 120,595 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,096 |
| Countries that End in O | 0 | - | 4.92 | 159,341 |
| Countries that End in R | 0 | - | 4.87 | 118,831 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,610 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,693 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,373 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,263 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,879 |
| Countries That End in Y | 0 | - | 4.91 | 185,759 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,577 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,654 |
| Countries that End in I | 0 | - | 4.94 | 134,979 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,769 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,700 |
| Countries That End in NIA | 0 | - | 4.92 | 109,647 |
| Countries That End in BIA | 0 | - | 4.93 | 149,013 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,905 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,241 |
| Countries That End in RIA | 0 | - | 4.93 | 126,672 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,814 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,177 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,461 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,850 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,395 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,448 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,841 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,377 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,308 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,772 |
| Countries that End in L | 0 | - | 4.94 | 156,689 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,908 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,206 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,921 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,842 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,891 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,460 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,426 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,830 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,361 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,864 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,735 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,027 |
| Top 15 Countries that Produce the Most Tea | 0 | - | 4.80 | 108,687 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,649 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,771 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,829,474 |
| One Border Countries | 0 | - | 4.98 | 468,705 |
