| Capitals of Countries with the Biggest Economies | 0 | - | 4.93 | 95,454 |
| Richest Island Countries | 0 | - | 4.85 | 101,200 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,908 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,689 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,954 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 85,053 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 196,092 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,658 |
| Top 10 Biggest Economies in Africa | 0 | - | 4.99 | 121,307 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.87 | 137,206 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 92,820 |
| Richest Countries A-Z | 0 | - | 4.91 | 104,017 |
| Large Countries with Small Economies | 0 | - | 4.95 | 81,291 |
| Richest Countries Bordering Each Other | 0 | - | 4.99 | 154,858 |
| Rich Countries Bordering Poor Countries | 0 | - | 4.89 | 100,586 |
| Bordering Countries with the Largest GDPs | 0 | - | 4.97 | 76,669 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,876 |
| Cities with the Biggest Economies | 0 | - | 4.91 | 131,654 |
| Countries with the Most Christians | 0 | - | 4.93 | 144,626 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 51,128 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 75,140 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 89,074 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 124,643 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,173 |
| Companies by Country | 0 | - | 4.61 | 120,157 |
| Five Richest Countries by Continent | 0 | - | 4.69 | 207,994 |
| World Currency Quiz | 0 | - | 4.92 | 306,593 |
| European Cities with the Biggest Economies | 0 | - | 4.61 | 38,611 |
| Divided World City Name Puzzle #1 | 0 | - | 4.84 | 49,304 |
| Countries with the Most Catholics | 0 | - | 4.90 | 110,390 |
| Orthodox Countries | 0 | - | 4.92 | 132,769 |
| Battle to Country | 0 | - | 4.91 | 53,936 |
| Monarchies of Europe | 0 | - | 4.90 | 98,840 |
| Monarchies of Asia | 0 | - | 4.97 | 71,490 |
| Asian Country Superlatives | 0 | - | 4.84 | 81,276 |
| Countries with the Most Exports | 0 | - | 4.96 | 156,132 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 190,448 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,764 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 112,507 |
| Brand Logos Quiz #1 | 0 | - | 4.83 | 2,437,904 |
| Category Elimination - European Geography #1 | 0 | - | 4.98 | 235,762 |
| Category Elimination - European Geography #2 | 0 | - | 4.99 | 168,858 |
| Category Elimination - Asian Geography #1 | 0 | - | 4.86 | 111,315 |
| Category Elimination - African Geography #1 | 0 | - | 4.90 | 93,387 |
| Most Guessed European Capitals | 0 | - | 4.87 | 101,807 |
| Category Elimination - Capital Cities #1 | 0 | - | 4.88 | 134,204 |
| Name a World Capital A-Z | 0 | - | 5.00 | 177,019 |
| Category Elimination - Capital Cities #2 | 0 | - | 4.89 | 81,332 |
| European Capital Superlatives - Top 2 | 0 | - | 4.95 | 81,546 |
| Small Countries with Large Economies | 0 | - | 4.63 | 90,392 |
| Category Elimination - European Countries #1 | 0 | - | 4.90 | 91,041 |
| Top 10 Coldest European Countries | 0 | - | 4.94 | 193,854 |
| Top 10 Hottest European Countries | 0 | - | 4.88 | 127,765 |
| Top 10 Coldest Asian Countries | 0 | - | 4.95 | 123,729 |
| Top 10 Richest Countries in the Americas | 0 | - | 4.94 | 94,979 |
| Top 10 Richest Countries in Africa | 0 | - | 4.85 | 76,976 |
| Top 10 Richest Countries in Europe | 0 | - | 4.90 | 151,163 |
| Biggest Trading Partners - European Union | 0 | - | 4.91 | 73,286 |
| Most Guessed U.S. Cities | 0 | - | 4.89 | 106,962 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 73,411 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,861,906 |
| Countries in World War I | 0 | - | 4.88 | 229,106 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,082 |
| Hindu Countries | 0 | - | 4.87 | 50,569 |
| Five Most Guessed Country Flags by Continent | 0 | - | 4.98 | 54,837 |
| Boundary Waters | 0 | - | 4.92 | 88,754 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.87 | 35,406 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 96,681 |
| Cities With the Most Billionaires | 0 | - | 4.77 | 102,543 |
| World Capitals Quiz | 0 | - | 5.00 | 5,104,718 |
| Landlocked Countries | 0 | - | 4.99 | 425,572 |
| Countries Richer Than Their Neighbors | 0 | - | 4.47 | 72,971 |
| Countries with the Most Cathedrals | 0 | - | 4.48 | 47,266 |
| Oil Export Dependent Countries | 0 | - | 4.56 | 50,037 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,803,087 |
| Countries with the Most Hindus | 0 | - | 4.90 | 123,556 |
| Countries Closest to United States A-Z | 0 | - | 4.82 | 118,688 |
| Countries Closest to Spain A-Z | 0 | - | 4.98 | 108,781 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,899 |
| Biggest Trading Partners - Turkey | 0 | - | 4.81 | 51,188 |
| Biggest Trading Partners - Colombia | 0 | - | 4.88 | 40,534 |
| World's Biggest Airlines | 0 | - | 4.42 | 126,176 |
| Zone 1 London Underground Stations - With a Map | 0 | - | 4.90 | 52,765 |
| Random Sequential Oceanic Countries on a Map | 0 | - | 4.97 | 27,404 |
| Top 10 Coldest U.S. States | 0 | - | 4.94 | 125,825 |
| Top 10 Hottest U.S. States | 0 | - | 4.86 | 126,457 |
| Top 10 U.S. States with the Least Precipitation | 0 | - | 4.83 | 62,187 |
| World Geography on a Map #1 | 0 | - | 4.94 | 73,916 |
| Geography Tile Select Quiz | 0 | - | 4.98 | 96,377 |
| Countries With More Than 100 Million People | 0 | - | 4.99 | 166,949 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.97 | 124,980 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,234 |
| Busiest Container Ports | 0 | - | 4.11 | 37,508 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,599,079 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,622 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,574 |
| Island Countries | 0 | - | 4.99 | 712,476 |
| Sahara Desert Countries | 0 | - | 4.98 | 166,135 |
| Himalayan Countries | 0 | - | 4.93 | 140,140 |
| Andean Countries | 0 | - | 4.94 | 85,381 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 64,528 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 126,919 |
| Coffee Producing Countries | 0 | - | 4.83 | 68,102 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 66,380 |
| Danube Countries | 0 | - | 4.97 | 72,351 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 117,551 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,802 |
| Countries with the Worst Passports | 0 | - | 4.93 | 85,058 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 150,554 |
| European Landlocked Countries | 0 | - | 4.99 | 147,579 |
| Partially Recognized Countries | 0 | - | 4.98 | 107,257 |
| Countries with the Most Species | 0 | - | 4.99 | 103,544 |
| Countries with the Highest Taxes | 0 | - | 4.38 | 87,732 |
| Countries 197 to 205 | 0 | - | 4.90 | 71,368 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,765 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,871 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,820 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 73,559 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,987 |
| Countries in the Alps | 0 | - | 4.87 | 118,738 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 102,563 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 107,806 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,944 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 97,000 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,917 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 96,230 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 101,367 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,828 |
| Largest Country by Body of Water | 0 | - | 4.96 | 58,404 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 63,153 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,851 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.91 | 41,729 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 104,536 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,762 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,864 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 119,773 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,591 |
| Countries that Host the Most Refugees | 0 | - | 4.96 | 65,764 |
| Catholic Countries | 0 | - | 4.80 | 215,585 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 46,636 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 245,581 |
| World Countries - Blind Typing | 0 | - | 5.00 | 109,082 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,489 |
| Top Net Food-Exporting Countries | 0 | - | 4.42 | 33,544 |
| Largest Countries By Category | 0 | - | 4.97 | 158,820 |
| Countries with the Largest Merchant Navies | 0 | - | 4.56 | 22,996 |
| Countries by Countries | 0 | - | 4.96 | 63,618 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,393,116 |
| Country Flags with the Most White | 0 | - | 4.85 | 139,219 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 62,389 |
| Countries with the Southernmost Northernmost Point | 0 | - | 4.87 | 47,659 |
| Communist Countries in History | 0 | - | 4.63 | 498,100 |
| Country Flags With Only Two Colors | 0 | - | 4.91 | 89,083 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,054,465 |
| Northernmost Countries | 0 | - | 4.99 | 363,885 |
| Countries with the Most Billionaires per Capita | 0 | - | 4.69 | 94,174 |
| Countries of South America | 0 | - | 5.00 | 932,333 |
| Countries of Oceania | 0 | - | 5.00 | 1,062,952 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,888,467 |
| "Land" Countries | 0 | - | 4.98 | 338,336 |
| Countries with the Most Exports per Capita | 0 | - | 4.56 | 38,915 |
| Top 10 Countries by Per Capita Crude Oil Production | 0 | - | 4.74 | 57,281 |
| Top 10 Geothermal Countries | 0 | - | 4.56 | 32,206 |
| Europe Map Quiz | 0 | - | 5.00 | 4,787,082 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.98 | 146,441 |
| Western Europe Map Quiz | 0 | - | 4.85 | 93,975 |
| All Country Flags of the World | 0 | - | 5.00 | 3,711,620 |
| Top World Languages | 0 | - | 4.92 | 829,499 |
| Tourist Attraction by Negative Review | 0 | - | 4.85 | 82,780 |
| Who Controls It? #1 | 0 | - | 4.83 | 48,613 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,034 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 128,555 |
| Longest International Borders | 0 | - | 4.99 | 265,789 |
| Countries with Three Borders | 0 | - | 4.96 | 36,760 |
| Country Connect by Northernmost Point | 0 | - | 4.96 | 42,341 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 48,486 |
| European Secessionist Movements on a Map | 0 | - | 4.53 | 35,178 |
| Demonym of Every Country | 0 | - | 4.90 | 61,455 |
| Midwestern States of the U.S. | 0 | - | 4.88 | 14,146 |
| Brand Logos Quiz #2 | 0 | - | 4.70 | 1,697,934 |
| Brand Logos Quiz #4 | 0 | - | 4.45 | 1,017,677 |
| Doctor Who Actors | 0 | - | 4.61 | 17,993 |
| Biblical Geography | 0 | - | 4.40 | 67,340 |
| Analogies of Countries #1 | 0 | - | 4.89 | 68,727 |
| Name a Valid Answer - Geography | 0 | - | 4.95 | 104,968 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,453,809 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,407 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 175,089 |
| Countries with Megacities | 0 | - | 4.99 | 266,995 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 200,801 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 114,099 |
| Countries With More than 200 Million People | 0 | - | 4.95 | 139,111 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 82,212 |
| Biggest Cities with a Muslim Majority | 0 | - | 4.64 | 108,137 |
| Biggest Cities in the World | 0 | - | 4.91 | 805,322 |
| Biggest Cities with a Tropical Climate | 0 | - | 4.38 | 32,109 |
| Biggest World Cities A-Z | 0 | - | 4.63 | 224,112 |
| Global Cities on a World Map | 0 | - | 4.93 | 137,268 |
| U.S. Cities with the Highest Murder Rate | 0 | - | 4.55 | 138,996 |
| Richest Metro Areas in the U.S. | 0 | - | 4.42 | 44,096 |
