| Top 10 Most Populous Asian Countries | 0 | - | 4.96 | 163,979 |
| Top 10 Most Densely-Populated Countries in Asia | 0 | - | 4.90 | 82,303 |
| Top 10 Asian Countries by Population Increase | 0 | - | 4.92 | 90,672 |
| Asia Capitals Quiz | 0 | - | 4.98 | 606,225 |
| Random Asian Country to Capital | 0 | - | 4.93 | 86,761 |
| Random Asian Capital to Country | 0 | - | 4.97 | 90,849 |
| Countries of Europe by Population | 0 | - | 4.98 | 131,083 |
| Asia Capital to Country | 0 | - | 4.96 | 107,184 |
| Asian Capitals by Map | 0 | - | 4.98 | 48,961 |
| 10 Easternmost Capital Cities in Asia | 0 | - | 4.89 | 47,441 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 209,347 |
| Top 10 Most Populous African Countries | 0 | - | 4.98 | 160,384 |
| Middle East Capital Cities Quiz | 0 | - | 4.96 | 79,125 |
| Asian Capitals - Map Quiz | 0 | - | 4.95 | 52,593 |
| Countries by Sports League Revenue | 0 | - | 4.89 | 45,015 |
| Nordic Countries and Capitals | 0 | - | 4.94 | 77,439 |
| Random European Capital to Country | 0 | - | 4.97 | 154,901 |
| Random European Country to Capital | 0 | - | 4.92 | 136,855 |
| Flags of Countries in the World Cup 2018 | 0 | - | 4.83 | 87,590 |
| Summer Olympic City Bids | 0 | - | 4.93 | 37,600 |
| Africa Capitals Quiz | 0 | - | 4.99 | 648,642 |
| World Capitals Closest to Bangkok | 0 | - | 4.91 | 38,448 |
| Random Asian Capitals on a Map | 0 | - | 4.83 | 45,776 |
| Olympic Host Countries | 0 | - | 4.98 | 164,250 |
| Ten Highest Ranking FIFA Countries by Year | 0 | - | 4.95 | 239,313 |
| 15 Largest Cities in Africa With a Map | 0 | - | 4.95 | 95,717 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 195,727 |
| Most-Visited Cities in Europe | 0 | - | 4.92 | 58,842 |
| Europe Capital to Country | 0 | - | 4.99 | 223,295 |
| EU Capitals with No Hints | 0 | - | 4.96 | 126,964 |
| European Capitals by Map | 0 | - | 4.99 | 97,709 |
| African Capitals by Map | 0 | - | 4.99 | 113,727 |
| 10 Westernmost Capital Cities in Europe | 0 | - | 4.89 | 80,396 |
| 10 Northernmost Capital Cities in Europe | 0 | - | 4.95 | 73,767 |
| European Coastal Capitals | 0 | - | 4.95 | 78,519 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 233,864 |
| Europe by Capitals and Borders in 30 Seconds | 0 | - | 4.90 | 197,250 |
| Capitals of Mediterranean Countries | 0 | - | 4.96 | 76,720 |
| All Countries Never To Qualify For A FIFA World Cup | 0 | - | 4.82 | 33,005 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 128,487 |
| Biggest Cities in Asia | 0 | - | 4.94 | 98,089 |
| Biggest Cities in Asia - Extreme | 0 | - | 4.92 | 44,400 |
| Official Cities in the UK | 0 | - | 4.87 | 236,574 |
| South America Capitals Quiz | 0 | - | 5.00 | 433,361 |
| North America Capitals Quiz | 0 | - | 4.99 | 190,351 |
| African Capitals - Map Quiz | 0 | - | 4.95 | 53,448 |
| Top 10 Most Remote European Capitals | 0 | - | 4.85 | 85,382 |
| European Capitals - Map Quiz | 0 | - | 4.97 | 107,136 |
| European Capitals Furthest from the Sea | 0 | - | 4.92 | 67,664 |
| European Capitals Ending in N | 0 | - | 4.92 | 74,814 |
| Countries with the Most Downhill Skiing | 0 | - | 4.90 | 51,316 |
| "Stan" Countries - Map Quiz | 0 | - | 4.98 | 114,288 |
| Asian Coastal Capitals | 0 | - | 4.54 | 20,475 |
| 10 Westernmost Capital Cities in Asia | 0 | - | 4.63 | 14,087 |
| 15 Largest Cities in Asia With a Map | 0 | - | 4.97 | 122,576 |
| British Cities with the Most Tourists | 0 | - | 4.81 | 57,118 |
| 100 Biggest Cities and Towns in the UK | 0 | - | 4.97 | 97,700 |
| Most-Visited U.S. Cities | 0 | - | 4.87 | 75,187 |
| Every U.S. Metro Area on a Map | 0 | - | 4.97 | 64,558 |
| Capitals of Canadian Provinces | 0 | - | 4.85 | 79,910 |
| Most Guessed Asian Capitals | 0 | - | 4.51 | 63,899 |
| European Capital Superlatives - Top 2 | 0 | - | 4.93 | 62,335 |
| Total United States Immigration by Country | 0 | - | 4.90 | 98,160 |
| "Do Not Travel" Countries for U.S. Citizens | 0 | - | 4.94 | 188,970 |
| Top 10 Biggest Economies in Asia | 0 | - | 4.88 | 103,535 |
| Boundary Waters | 0 | - | 4.93 | 81,992 |
| The Same Suffixes - Geography | 0 | - | 4.98 | 76,328 |
| 15 Largest Cities in the Middle East With a Map | 0 | - | 4.92 | 104,987 |
| North American Sports Cities | 0 | - | 4.79 | 161,062 |
| Big 4 Sports Championship Cities | 0 | - | 4.43 | 95,380 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,547,502 |
| India State Capitals Quiz | 0 | - | 4.31 | 55,829 |
| South American Capitals - Map Quiz | 0 | - | 4.98 | 117,695 |
| Most Guessed European Capitals | 0 | - | 4.89 | 97,070 |
| Melbourne Suburbs | 0 | - | 4.81 | 38,952 |
| Countries of the World Quiz | 0 | - | 5.00 | 41,730,621 |
| Landlocked Countries Quiz | 0 | - | 4.99 | 333,998 |
| Countries with Most Grand Slam Tennis Titles | 0 | - | 4.46 | 46,956 |
| Countries with Major League Baseball Players | 0 | - | 4.55 | 53,826 |
| Countries with the Fastest Marathoners | 0 | - | 4.51 | 87,072 |
| Countries with the Most Golf Courses | 0 | - | 4.55 | 49,385 |
| Vietnam War Countries | 0 | - | 4.81 | 87,427 |
| Countries Where Baseball is the Most Popular Sport | 0 | - | 4.43 | 52,209 |
| Countries in the Ottoman Empire | 0 | - | 4.89 | 67,726 |
| Countries with the Fastest 100 Meter Sprinters | 0 | - | 4.46 | 78,625 |
| Every Asian Country Shape | 0 | - | 4.94 | 76,659 |
| Top 10 Richest Countries in Asia | 0 | - | 4.87 | 83,352 |
| Biggest Mongol Empire Countries | 0 | - | 4.91 | 68,137 |
| Most-Visited Countries by Americans | 0 | - | 4.87 | 95,281 |
| Countries that Visit the United States the Most | 0 | - | 4.96 | 80,284 |
| Countries Along the Afro-Eurasia Coast | 0 | - | 4.83 | 30,768 |
| World Geography on a Map #1 | 0 | - | 4.93 | 68,238 |
| Countries With More Than 100 Million People | 0 | - | 4.98 | 139,543 |
| Five Most Populated Countries by Hemisphere | 0 | - | 4.96 | 111,491 |
| Top 10 Least Populous U.S. States | 0 | - | 4.93 | 174,884 |
| Top 10 Most Populous U.S. States | 0 | - | 4.97 | 151,849 |
| All Cities in China with Population of 1 Million | 0 | - | 4.81 | 39,528 |
| Important Cities in European History | 0 | - | 4.55 | 110,802 |
| European Cities by Map #2 | 0 | - | 4.48 | 44,765 |
| European Cities by Map #1 | 0 | - | 4.66 | 52,218 |
| Asian Cities by Map #1 | 0 | - | 4.49 | 39,141 |
| Most Guessed U.S. Cities | 0 | - | 4.90 | 93,051 |
| Mediterranean Cities by Map | 0 | - | 4.49 | 49,506 |
| U.S. Cities with the Biggest Economies | 0 | - | 4.83 | 62,668 |
| Cities in Squares on a Map - Europe | 0 | - | 4.75 | 46,925 |
| World Capitals Quiz | 0 | - | 5.00 | 4,572,331 |
| Random African Capitals on a Map | 0 | - | 4.95 | 49,056 |
| Random European Capitals on a Map | 0 | - | 4.98 | 108,712 |
| US State Capitals Quiz - No Hints | 0 | - | 4.96 | 80,954 |
| U.S. State Capitals Map Quiz | 0 | - | 4.92 | 127,758 |
| 10 Westernmost U.S. State Capitals | 0 | - | 4.88 | 44,884 |
| Which City in Europe? | 0 | - | 4.85 | 98,725 |
| Members of the Arab League | 0 | - | 4.86 | 66,181 |
| Sahara Desert Countries | 0 | - | 4.97 | 130,392 |
| Himalayan Countries | 0 | - | 4.94 | 108,328 |
| Andean Countries | 0 | - | 4.91 | 60,130 |
| Countries with the Oldest Median Age | 0 | - | 4.82 | 61,321 |
| Countries with the Youngest Median Age | 0 | - | 4.98 | 50,810 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 104,416 |
| Coffee Producing Countries | 0 | - | 4.82 | 54,828 |
| Countries with Shrinking Populations | 0 | - | 4.93 | 54,233 |
| Danube Countries | 0 | - | 4.96 | 57,210 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 92,221 |
| Countries With an "Ese" Demonym | 0 | - | 4.96 | 65,287 |
| Countries with the Best Passports | 0 | - | 4.86 | 72,674 |
| Countries with the Worst Passports | 0 | - | 4.89 | 50,373 |
| Countries with the Most Immigrants | 0 | - | 4.87 | 110,982 |
| European Landlocked Countries | 0 | - | 4.99 | 137,022 |
| Partially Recognized Countries | 0 | - | 4.98 | 90,784 |
| Countries with the Most Species | 0 | - | 4.99 | 89,851 |
| Countries 197 to 205 | 0 | - | 4.87 | 57,324 |
| Tropic of Cancer Countries | 0 | - | 4.96 | 45,009 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 44,311 |
| Countries Producing the Most Sugarcane | 0 | - | 4.94 | 49,041 |
| Countries that Use the Peso | 0 | - | 4.82 | 46,874 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.88 | 59,112 |
| Countries with a AAA Credit Rating | 0 | - | 4.87 | 49,896 |
| Countries in the Alps | 0 | - | 4.84 | 103,827 |
| Top Five Importing Partners by Country | 0 | - | 4.98 | 86,414 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 89,454 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 72,268 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 79,352 |
| Northernmost Countries by Continent | 0 | - | 4.97 | 94,881 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.91 | 88,330 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 90,521 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 46,762 |
| Biggest Country by Body of Water | 0 | - | 4.96 | 45,683 |
| Countries With The Most NHL Hockey Players | 0 | - | 4.45 | 86,580 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 55,398 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.88 | 70,158 |
| Countries With the Most NBA Players | 0 | - | 4.45 | 83,341 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 49,017 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 37,020 |
| Countries of Asia in 1900 | 0 | - | 4.49 | 54,050 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 96,553 |
| Arctic Ocean Countries | 0 | - | 4.93 | 72,646 |
| Countries with the Most Grassland | 0 | - | 4.94 | 70,222 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 100,489 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 61,945 |
| Countries that Host the Most Refugees | 0 | - | 4.94 | 54,014 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 202,326 |
| World Countries - Blind Typing | 0 | - | 5.00 | 75,312 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 42,818 |
| Countries with the Most Summer Olympics Medals | 0 | - | 4.69 | 85,423 |
| Largest Countries By Category | 0 | - | 4.97 | 146,389 |
| Countries by Countries | 0 | - | 4.95 | 55,575 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,167,407 |
| Countries With the Northernmost Southernmost Point | 0 | - | 4.96 | 59,193 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 79,584 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,225,988 |
| Countries Closest to United States by Continent | 0 | - | 4.99 | 126,074 |
| Countries Bordering China Since 1914 | 0 | - | 4.92 | 88,598 |
| Countries Closest to Alaska | 0 | - | 4.92 | 100,309 |
| Countries Closest to Maine | 0 | - | 4.86 | 59,853 |
| Biggest Trading Partners - China | 0 | - | 4.96 | 70,925 |
| Biggest Trading Partners - Turkey | 0 | - | 4.82 | 45,914 |
| Countries that Beat the United States | 0 | - | 4.92 | 148,075 |
| NBA Cities Map Quiz | 0 | - | 4.45 | 223,816 |
| 50 Largest Countries on the World Map Quiz | 0 | - | 4.99 | 136,229 |
| Western Europe Map Quiz | 0 | - | 4.87 | 89,708 |
| MLB Cities Map Quiz | 0 | - | 4.45 | 63,692 |
| Tourist Attraction by Negative Review | 0 | - | 4.91 | 60,525 |
| Who Controls It? #1 | 0 | - | 4.83 | 45,864 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 183,066 |
| Border Crossings Quiz #2 | 0 | - | 4.99 | 111,829 |
| Longest International Borders | 0 | - | 4.99 | 236,573 |
| Countries with Three Borders | 0 | - | 4.96 | 32,105 |
| Country Connect by Northernmost Point | 0 | - | 4.97 | 36,826 |
| Largest Cities for each Latitude Degree | 0 | - | 4.99 | 41,340 |
| U.S. States with the Lowest Population Density | 0 | - | 4.92 | 89,347 |
| Demonym of Every Country | 0 | - | 4.91 | 50,777 |
| Cities of China (With Some Help) | 0 | - | 4.87 | 28,665 |
| American Cities by Stadium Quiz | 0 | - | 4.02 | 35,805 |
| City by Football Clubs | 0 | - | 4.40 | 130,771 |
| Random European City to Country | 0 | - | 4.71 | 108,403 |
| Random Asian City to Country | 0 | - | 4.53 | 42,737 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,407,234 |
| World Capitals Closest to Jerusalem | 0 | - | 4.45 | 43,118 |
| Asian Capital Superlatives - Top 2 | 0 | - | 4.36 | 25,464 |
| Random State Capital to U.S. State | 0 | - | 4.85 | 76,287 |
