| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,817 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,432 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,116 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,440 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 132,993 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,010 |
| Companies by Country | 0 | - | 4.61 | 119,506 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,620 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,167 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,535 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,735 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,353,527 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,326,737 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,053 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,884 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,405 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,684 |
| Countries by Emojis | 0 | - | 4.99 | 238,963 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,760 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,952 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,268 |
| Landlocked Countries | 0 | - | 4.99 | 419,221 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,858 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,758,468 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,955 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,655 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,650 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,093 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,113 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 120,979 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,169 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,666 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,336 |
| Orthodox Countries | 0 | - | 4.92 | 131,381 |
| Richest Island Countries | 0 | - | 4.84 | 100,346 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,532 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,103 |
| Battle to Country | 0 | - | 4.91 | 53,191 |
| Monarchies of Europe | 0 | - | 4.90 | 97,994 |
| Monarchies of Asia | 0 | - | 4.97 | 71,006 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,794 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,176 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,483 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,315 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,316 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,618 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,107 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,403 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,007 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,537 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,989 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,262 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,226 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.87 | 132,799 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,677 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,249 |
| Island Countries | 0 | - | 4.99 | 709,877 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,111 |
| Himalayan Countries | 0 | - | 4.95 | 137,534 |
| Andean Countries | 0 | - | 4.95 | 83,994 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,264 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,737 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,886 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,387 |
| Danube Countries | 0 | - | 4.97 | 71,696 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,605 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,087 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,704 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,777 |
| European Landlocked Countries | 0 | - | 4.99 | 146,805 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,170 |
| Countries with the Most Species | 0 | - | 4.99 | 102,943 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,312 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,436 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,598 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,327 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,005 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,389 |
| Countries in the Alps | 0 | - | 4.87 | 117,732 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,165 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,424 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,438 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,025 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,136 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,736 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,310 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,214 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,981 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,579 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,502 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,351 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,951 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,210 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,236 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,244 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,084 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,584 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,561 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,503 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,286 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,015 |
| Largest Countries By Category | 0 | - | 4.97 | 157,682 |
| Countries by Countries | 0 | - | 4.96 | 62,861 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,376,292 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,819 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,792 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 130,515 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,170 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,347 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,353 |
| Northernmost Countries | 0 | - | 4.99 | 360,603 |
| Countries of South America | 0 | - | 5.00 | 923,245 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,599 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,867,187 |
| "Land" Countries | 0 | - | 4.98 | 335,859 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 192,982 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 126,842 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,886 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,008 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 99,962 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,355 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 260,228 |
| Name a Valid Asian Country | 0 | - | 4.98 | 120,828 |
| Name a Valid African Country | 0 | - | 4.98 | 153,848 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,399 |
| Political Movements by Country | 0 | - | 4.46 | 72,475 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,443,696 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 379,831 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,107 |
| Countries with Megacities | 0 | - | 4.99 | 261,194 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,966 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,040 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,242 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,058 |
| Countries by Official Language | 0 | - | 4.95 | 194,684 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,602 |
| Countries in their Native Language | 0 | - | 4.99 | 198,237 |
| Independence from Whom | 0 | - | 4.99 | 211,383 |
| Subdivisions by Country | 0 | - | 4.86 | 50,298 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,759 |
| Countries in World War I | 0 | - | 4.88 | 227,890 |
| Megadiverse Countries | 0 | - | 4.96 | 134,788 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 228,767 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,580 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,200 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,765 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,027 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,736 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,398 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,016 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,861 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,501 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,999 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,041 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,729 |
| Hindu Countries | 0 | - | 4.86 | 50,038 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,007 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,794 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,168 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,337 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,265 |
| World Map Quiz | 0 | - | 4.81 | 64,625 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,059 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,560 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,958 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,674 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,405 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,549 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,702 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,853 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,283 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,308 |
| Widest Countries East to West | 0 | - | 4.92 | 129,396 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,388 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,984 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,001 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,532 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,249 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,573 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,247 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,730 |
| Countries with Double Letters | 0 | - | 4.97 | 95,135 |
| Countries that End in N | 0 | - | 4.95 | 170,077 |
| Countries with Five Letters | 0 | - | 4.96 | 280,489 |
| Countries with Six Letters | 0 | - | 4.94 | 212,538 |
| Countries with W | 0 | - | 4.97 | 159,546 |
| Countries with Z | 0 | - | 4.98 | 289,874 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,790 |
| Countries That End in U | 0 | - | 4.95 | 120,425 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,792 |
| Countries that End in O | 0 | - | 4.92 | 159,216 |
| Countries that End in R | 0 | - | 4.87 | 118,746 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,523 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,384 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,145 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,101 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,692 |
| Countries That End in Y | 0 | - | 4.91 | 185,656 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,270 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,461 |
