| Countries of the World Quiz | 0 | - | 5.00 | 47,488,095 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,498 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 120,644 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 134,740 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,227 |
| Landlocked Countries | 0 | - | 4.99 | 420,856 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.93 | 84,094 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,307 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 149,803 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 72,845 |
| Countries with the Most Christians | 0 | - | 4.92 | 143,311 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,589 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,812 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 88,291 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,548 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,638 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,770,092 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,932 |
| Himalayan Countries | 0 | - | 4.95 | 138,235 |
| Andean Countries | 0 | - | 4.95 | 84,336 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,563 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 125,454 |
| Coffee Producing Countries | 0 | - | 4.83 | 67,186 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,608 |
| Danube Countries | 0 | - | 4.97 | 71,875 |
| Countries With an "Ish" Demonym | 0 | - | 4.98 | 116,846 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,275 |
| Countries with the Worst Passports | 0 | - | 4.94 | 84,060 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 149,518 |
| European Landlocked Countries | 0 | - | 4.99 | 147,008 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,427 |
| Countries with the Most Species | 0 | - | 4.99 | 103,130 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,577 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,525 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,669 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,465 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,141 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,541 |
| Countries in the Alps | 0 | - | 4.87 | 118,015 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 100,089 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,797 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,563 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 96,487 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,357 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,855 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,510 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,375 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,099 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,727 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,578 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,434 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,099 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,372 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,395 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,626 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,200 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,717 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,862 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 243,368 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,766 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,134 |
| Largest Countries By Category | 0 | - | 4.97 | 157,984 |
| Countries by Countries | 0 | - | 4.96 | 63,058 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 88,550 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,577 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,157 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,480 |
| Island Countries | 0 | - | 4.99 | 710,575 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,048,346 |
| Northernmost Countries | 0 | - | 4.99 | 361,406 |
| Countries of South America | 0 | - | 5.00 | 925,562 |
| Countries of Oceania | 0 | - | 5.00 | 1,054,680 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,873,128 |
| "Land" Countries | 0 | - | 4.98 | 336,872 |
| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,182 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,508 |
| Orthodox Countries | 0 | - | 4.92 | 132,030 |
| Richest Island Countries | 0 | - | 4.85 | 100,593 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,380,676 |
| Monarchies of Europe | 0 | - | 4.90 | 98,185 |
| Monarchies of Asia | 0 | - | 4.97 | 71,114 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,914 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,466 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,771 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,441 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,489 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,772 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,355 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,582 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,809 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 195,264 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 50,774 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,581 |
| Countries with Megacities | 0 | - | 4.99 | 263,720 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 199,423 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,305 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,694 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,349 |
| Countries by Official Language | 0 | - | 4.95 | 195,007 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 296,056 |
| Countries in their Native Language | 0 | - | 4.99 | 198,520 |
| Independence from Whom | 0 | - | 4.99 | 211,797 |
| Subdivisions by Country | 0 | - | 4.86 | 50,379 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 132,210 |
| Megadiverse Countries | 0 | - | 4.96 | 134,914 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,864 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,281 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,863 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,069 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,962 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,505 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 94,279 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,962 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,587 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 45,048 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 77,418 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,809 |
| Countries Furthest from the United States | 0 | - | 4.94 | 89,123 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,898 |
| Straight Shot to the Arctic Circle | 0 | - | 4.88 | 75,268 |
| Richest Countries A-Z | 0 | - | 4.91 | 103,206 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,939 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,230 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,854 |
| Countries by Inland Surface Water | 0 | - | 4.93 | 105,137 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,859 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,875 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,766 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,900 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 99,201 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,380 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,476 |
| Widest Countries East to West | 0 | - | 4.92 | 129,547 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,421 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 186,225 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 98,077 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,662 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,450 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,732 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,329 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,773 |
| Companies by Country | 0 | - | 4.61 | 119,694 |
| Countries with Double Letters | 0 | - | 4.97 | 95,830 |
| Countries that End in N | 0 | - | 4.95 | 170,767 |
| Countries with Five Letters | 0 | - | 4.96 | 281,839 |
| Countries with Six Letters | 0 | - | 4.94 | 213,173 |
| Countries with W | 0 | - | 4.97 | 160,053 |
| Countries with Z | 0 | - | 4.98 | 291,032 |
| Countries with Letters Missing | 0 | - | 4.96 | 186,401 |
| Countries That End in U | 0 | - | 4.95 | 120,689 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 134,185 |
| Countries that End in O | 0 | - | 4.92 | 159,400 |
| Countries that End in R | 0 | - | 4.87 | 118,870 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,647 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,788 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,464 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,311 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 142,054 |
| Countries That End in Y | 0 | - | 4.91 | 185,790 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,663 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,688 |
| Countries that End in I | 0 | - | 4.94 | 135,008 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,838 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,731 |
| Countries That End in NIA | 0 | - | 4.92 | 109,675 |
| Countries That End in BIA | 0 | - | 4.93 | 149,054 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,947 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,274 |
| Countries That End in RIA | 0 | - | 4.93 | 126,707 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,864 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,251 |
| Divided Country Name Puzzle #2 | 0 | - | 4.99 | 133,493 |
| Divided Country Name Puzzle #3 | 0 | - | 4.92 | 125,894 |
| Groups of Countries that Start with the Same 3 Letters | 0 | - | 5.00 | 91,467 |
| Add A Letter - Make a Country | 0 | - | 4.82 | 74,483 |
| Countries With One Word and Three A's | 0 | - | 4.92 | 52,882 |
| Countries with a Unique Last Letter | 0 | - | 4.90 | 103,396 |
| Countries that are Free from U.S.A. | 0 | - | 4.89 | 49,337 |
| Countries Containing Two or More Words | 0 | - | 4.97 | 53,809 |
| Countries that End in L | 0 | - | 4.94 | 156,717 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 215,026 |
| Countries Ending with "An", but not "Stan" | 0 | - | 4.98 | 85,228 |
| City to Country Quiz #1 | 0 | - | 4.97 | 155,939 |
| City to Country Quiz #3 | 0 | - | 4.88 | 118,863 |
| 45 European Countries, 45 Cities | 0 | - | 4.95 | 78,904 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,511 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,472 |
| Five Least Populated Countries by Continent | 0 | - | 4.95 | 142,859 |
| Five Smallest Countries by Continent | 0 | - | 4.98 | 163,391 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,018 |
| Last Five Countries Alphabetically by Continent | 0 | - | 4.98 | 152,760 |
| Five Northernmost Capital Cities by Continent | 0 | - | 4.89 | 71,036 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,167 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,072 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,004 |
| Top 10 Countries in Nuclear Power Production | 0 | - | 4.95 | 86,657 |
| 10 Northernmost Countries That Start with S | 0 | - | 4.94 | 62,783 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,242 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,437 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,346 |
