| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,674 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,257 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,121,708 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,898 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,159 |
| Countries by Emojis | 0 | - | 4.99 | 237,630 |
| Countries With One Word And Two O's | 0 | - | 4.94 | 55,389 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,391 |
| Landlocked Countries | 0 | - | 4.99 | 416,106 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,736,914 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,291 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 134,723 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,684 |
| Countries with the Most Catholics | 0 | - | 4.90 | 108,542 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,486 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,073 |
| Orthodox Countries | 0 | - | 4.92 | 130,820 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,121 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 95,871 |
| Battle to Country | 0 | - | 4.91 | 52,847 |
| Monarchies of Europe | 0 | - | 4.90 | 97,643 |
| Monarchies of Asia | 0 | - | 4.97 | 70,791 |
| Asian Country Superlatives | 0 | - | 4.83 | 80,590 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 102,785 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,016 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 326,435 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 373,564 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 403,350 |
| Island Countries | 0 | - | 4.99 | 708,633 |
| Sahara Desert Countries | 0 | - | 4.98 | 161,659 |
| Himalayan Countries | 0 | - | 4.95 | 136,270 |
| Andean Countries | 0 | - | 4.95 | 83,349 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 62,619 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 123,832 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,319 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 64,934 |
| Danube Countries | 0 | - | 4.97 | 71,339 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,124 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 85,797 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,033 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 147,988 |
| European Landlocked Countries | 0 | - | 4.99 | 146,056 |
| Partially Recognized Countries | 0 | - | 4.98 | 105,669 |
| Countries with the Most Species | 0 | - | 4.99 | 98,477 |
| Countries 197 to 205 | 0 | - | 4.89 | 69,813 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,307 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,481 |
| Countries that Use the Peso | 0 | - | 4.88 | 59,122 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,764 |
| Countries with a AAA Credit Rating | 0 | - | 4.85 | 57,138 |
| Countries in the Alps | 0 | - | 4.86 | 117,263 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 94,851 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 105,769 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,215 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,673 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 115,616 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 95,210 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 99,920 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 52,957 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,756 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,287 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,331 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,184 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,681 |
| Arctic Ocean Countries | 0 | - | 4.95 | 78,944 |
| Countries with the Most Grassland | 0 | - | 4.93 | 76,950 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 117,613 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 67,857 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,392 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,137 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 240,702 |
| World Countries - Blind Typing | 0 | - | 5.00 | 106,445 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 47,784 |
| Largest Countries By Category | 0 | - | 4.97 | 157,183 |
| Countries by Countries | 0 | - | 4.96 | 62,541 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,369,116 |
| Country Flags with the Most White | 0 | - | 4.87 | 137,806 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,063 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,037 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,042,712 |
| Northernmost Countries | 0 | - | 4.99 | 359,102 |
| Companies by Country | 0 | - | 4.61 | 118,966 |
| Countries of South America | 0 | - | 5.00 | 918,968 |
| Countries of Oceania | 0 | - | 5.00 | 1,045,723 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,856,913 |
| "Land" Countries | 0 | - | 4.98 | 334,295 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 231,571 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,000 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,961 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 119,705 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 118,798 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.93 | 91,400 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 130,042 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,553 |
| Top 10 Hottest European Countries | 0 | - | 4.89 | 126,430 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,658 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 258,364 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,409 |
| Name a Valid African Country | 0 | - | 4.98 | 153,339 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,439,164 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,650 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 172,138 |
| Countries with Megacities | 0 | - | 4.99 | 248,658 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 197,998 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 112,471 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 136,381 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 80,419 |
| Five Biggest Cities by Country | 0 | - | 4.70 | 166,007 |
| Name a World Capital A-Z | 0 | - | 5.00 | 175,384 |
| Countries by Official Language | 0 | - | 4.95 | 193,816 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 294,309 |
| Countries in their Native Language | 0 | - | 4.99 | 197,475 |
| Independence from Whom | 0 | - | 4.99 | 210,418 |
| Subdivisions by Country | 0 | - | 4.86 | 50,175 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,228 |
| Megadiverse Countries | 0 | - | 4.96 | 134,501 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 130,677 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,058 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 125,602 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 74,937 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,220 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,181 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,485 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,508 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,339 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,796 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 76,089 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,558 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,655 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,625 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 74,829 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,173 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 109,380 |
| World Map Quiz | 0 | - | 4.81 | 63,959 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 106,653 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,961 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,612 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,333 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,556 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,202 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,395 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,575 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,119 |
| Tallest Countries North to South | 0 | - | 4.83 | 119,602 |
| Widest Countries East to West | 0 | - | 4.92 | 129,098 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,310 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,587 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,813 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 93,921 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 147,929 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,311 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 76,992 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.84 | 34,657 |
| Foods by Country of Origin #1 | 0 | - | 4.40 | 335,684 |
| Political Movements by Country | 0 | - | 4.46 | 72,368 |
| Countries with Double Letters | 0 | - | 4.96 | 93,828 |
| Countries that End in N | 0 | - | 4.94 | 157,263 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,227 |
| Countries with Six Letters | 0 | - | 4.93 | 210,855 |
| Countries with W | 0 | - | 4.97 | 158,521 |
| Countries with Z | 0 | - | 4.98 | 288,414 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,862 |
| Countries That End in U | 0 | - | 4.95 | 119,668 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,020 |
| Countries that End in O | 0 | - | 4.92 | 158,699 |
| Countries that End in R | 0 | - | 4.87 | 118,417 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 154,971 |
| Countries Ending in "IA" | 0 | - | 4.99 | 207,585 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 169,647 |
| Countries by Last Two Letters | 0 | - | 4.85 | 134,730 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,299 |
| Countries That End in Y | 0 | - | 4.90 | 185,327 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,746 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,007 |
| Countries that End in I | 0 | - | 4.94 | 134,599 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 182,606 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,368 |
| Countries That End in NIA | 0 | - | 4.92 | 109,230 |
| Countries That End in BIA | 0 | - | 4.93 | 148,466 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,353 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 118,708 |
| Countries That End in RIA | 0 | - | 4.93 | 126,269 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,258 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,933 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 132,778 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,137 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 90,681 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,082 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,370 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 102,888 |
| Unique Starting Letter - Countries by Continent | 0 | - | 4.98 | 124,773 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 48,948 |
| Countries Containing Two or More Words | 0 | - | 4.96 | 53,106 |
| Countries that End in L | 0 | - | 4.94 | 156,214 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,599 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,039 |
| City to Country Quiz #1 | 0 | - | 4.96 | 155,685 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,518 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,583 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,205 |
