| Five Biggest World Cities by Letter #2 | 0 | - | 4.83 | 68,907 |
| Five Biggest World Cities by Letter #1 | 0 | - | 4.95 | 73,530 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,420 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,610 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,473 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,187 |
| Companies by Country | 0 | - | 4.61 | 119,655 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 83,998 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,277 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,736 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,818 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,457,835 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,745 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,436 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,201 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,553 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,791 |
| Countries by Emojis | 0 | - | 4.99 | 239,712 |
| Countries With One Word And Two O's | 0 | - | 4.92 | 55,931 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,221 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,565 |
| Landlocked Countries | 0 | - | 4.99 | 420,511 |
| Small Countries with Large Economies | 0 | - | 4.63 | 89,955 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,767,463 |
| Top 10 Solar Power Countries | 0 | - | 4.78 | 59,989 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,748 |
| Divided World City Name Puzzle #1 | 0 | - | 4.87 | 48,775 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,162 |
| Asian Countries with the Shortest Names | 0 | - | 4.97 | 135,295 |
| American Countries with the Shortest Names | 0 | - | 4.96 | 121,126 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,425 |
| Countries with the Most McDonald's Locations | 0 | - | 4.83 | 110,754 |
| Biggest Countries with No McDonald's | 0 | - | 4.84 | 89,470 |
| Orthodox Countries | 0 | - | 4.92 | 131,946 |
| Richest Island Countries | 0 | - | 4.85 | 100,544 |
| Countries by Initial Letter and Continent #3 | 0 | - | 4.93 | 48,695 |
| Countries by Initial Letter and Continent #2 | 0 | - | 4.91 | 96,209 |
| Battle to Country | 0 | - | 4.91 | 53,346 |
| Monarchies of Europe | 0 | - | 4.90 | 98,154 |
| Monarchies of Asia | 0 | - | 4.97 | 71,089 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,891 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,409 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,712 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,413 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,452 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,523 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,298 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,535 |
| UNESCO World Heritage Sites to Country | 0 | - | 4.97 | 103,088 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,739 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,186 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,320 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,270 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 133,036 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,034 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,217 |
| Island Countries | 0 | - | 4.99 | 710,372 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,701 |
| Himalayan Countries | 0 | - | 4.95 | 138,080 |
| Andean Countries | 0 | - | 4.95 | 84,263 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,483 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,320 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,118 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,558 |
| Danube Countries | 0 | - | 4.97 | 71,831 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,789 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,230 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,963 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,420 |
| European Landlocked Countries | 0 | - | 4.99 | 146,963 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,372 |
| Countries with the Most Species | 0 | - | 4.99 | 103,088 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,529 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,503 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,658 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,443 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,114 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,503 |
| Countries in the Alps | 0 | - | 4.87 | 117,955 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 99,418 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,704 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,548 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,450 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,305 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,831 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,466 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,337 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,074 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,701 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,566 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,419 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,069 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,349 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,363 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,532 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,178 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,687 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,822 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,157 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,659 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,105 |
| Largest Countries By Category | 0 | - | 4.97 | 157,927 |
| Countries by Countries | 0 | - | 4.97 | 63,008 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,623 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,124 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,912 |
| Countries that Produce the Most Beer | 0 | - | 4.85 | 130,708 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,215 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,504 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,853 |
| Northernmost Countries | 0 | - | 4.99 | 361,213 |
| Countries of South America | 0 | - | 5.00 | 925,077 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,000 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,850 |
| "Land" Countries | 0 | - | 4.98 | 336,360 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,121 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,016 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 122,964 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,184 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,081 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,415 |
| Name a Valid European Country #1 | 0 | - | 4.99 | 261,032 |
| Name a Valid Asian Country | 0 | - | 4.98 | 121,011 |
| Name a Valid African Country | 0 | - | 4.98 | 154,081 |
| Five Biggest Cities by Country | 0 | - | 4.69 | 166,589 |
| Political Movements by Country | 0 | - | 4.46 | 72,531 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,684 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,335 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,458 |
| Countries with Megacities | 0 | - | 4.99 | 263,401 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,299 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,240 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,592 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,282 |
| Countries by Official Language | 0 | - | 4.95 | 194,932 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,948 |
| Countries in their Native Language | 0 | - | 4.99 | 198,455 |
| Independence from Whom | 0 | - | 4.99 | 211,710 |
| Subdivisions by Country | 0 | - | 4.86 | 50,360 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,982 |
| Countries in World War I | 0 | - | 4.88 | 228,144 |
| Megadiverse Countries | 0 | - | 4.96 | 134,880 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,031 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,795 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,257 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,846 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,059 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,912 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,480 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,217 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,936 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,565 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,041 |
| Countries by Sports League Revenue | 0 | - | 4.95 | 77,341 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,794 |
| Hindu Countries | 0 | - | 4.86 | 50,154 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,093 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,870 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,253 |
| Most Dispersed Island Nations | 0 | - | 4.97 | 71,416 |
| Countries of the World in Alphabetical Order | 0 | - | 5.00 | 110,666 |
| World Map Quiz | 0 | - | 4.81 | 64,860 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,196 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,782 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 105,094 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,830 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,774 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,723 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,853 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,110 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,352 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,432 |
| Widest Countries East to West | 0 | - | 4.92 | 129,505 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,416 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,162 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,062 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,641 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,412 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,703 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,311 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,764 |
| Foods by Country of Origin #1 | 0 | - | 4.41 | 336,664 |
| Countries with Double Letters | 0 | - | 4.97 | 95,399 |
| Countries that End in N | 0 | - | 4.95 | 170,434 |
| Countries with Five Letters | 0 | - | 4.96 | 281,377 |
| Countries with Six Letters | 0 | - | 4.94 | 212,845 |
| Countries with W | 0 | - | 4.97 | 159,731 |
| Countries with Z | 0 | - | 4.98 | 290,651 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,996 |
| Countries That End in U | 0 | - | 4.95 | 120,528 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,015 |
| Countries that End in O | 0 | - | 4.92 | 159,293 |
| Countries that End in R | 0 | - | 4.87 | 118,810 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,582 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,627 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,339 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,226 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,843 |
| Countries That End in Y | 0 | - | 4.91 | 185,731 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,542 |
