| Island Countries | 0 | - | 4.99 | 708,362 |
| Countries by Three Words #1 | 0 | - | 4.95 | 264,022 |
| European Countries by Clue | 0 | - | 4.92 | 182,807 |
| Countries by Military Spending | 0 | - | 4.93 | 176,744 |
| Countries by Three Words #2 | 0 | - | 4.97 | 200,350 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,065,341 |
| US States Quiz | 0 | - | 5.00 | 16,749,335 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,597,629 |
| United States Map Quiz | 0 | - | 4.98 | 4,145,845 |
| World Capitals Quiz | 0 | - | 5.00 | 5,043,313 |
| Europe Map Quiz | 0 | - | 5.00 | 4,740,304 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,808,608 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,367,355 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,529,391 |
| Random Capital to Country | 0 | - | 4.99 | 2,581,871 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,731,680 |
| Africa Map Quiz | 0 | - | 5.00 | 2,108,239 |
| All Country Flags of the World | 0 | - | 5.00 | 3,618,740 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,092,127 |
| Countries that Start with B | 0 | - | 4.95 | 2,283,710 |
| Countries that Start with A | 0 | - | 4.98 | 2,151,159 |
| Countries of Africa | 0 | - | 5.00 | 2,515,862 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,442,844 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,680,792 |
| South America Map Quiz | 0 | - | 5.00 | 1,543,160 |
| Countries that Start with C | 0 | - | 4.96 | 1,813,371 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,378,306 |
| Countries that Start with S | 0 | - | 4.98 | 1,747,259 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,438,089 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,575,122 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,854,669 |
| Countries that Start with G | 0 | - | 4.97 | 1,495,522 |
| Countries that Start with M | 0 | - | 4.97 | 1,375,543 |
| Countries that Start with E | 0 | - | 4.95 | 1,370,032 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,322,046 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,411 |
| Countries that Start with I | 0 | - | 4.92 | 1,282,359 |
| Countries that Start with P | 0 | - | 4.94 | 1,210,473 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,041,833 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,088,856 |
| Countries that Start with N | 0 | - | 4.93 | 1,111,806 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,231,601 |
| Countries that Start with L | 0 | - | 4.98 | 1,084,890 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 905,061 |
| Random Country to Capital | 0 | - | 4.98 | 913,675 |
| Countries that Start with T | 0 | - | 4.90 | 1,005,688 |
| Biggest Cities in the United States | 0 | - | 4.93 | 969,865 |
| Asia Map Quiz | 0 | - | 4.99 | 909,254 |
| Countries that Start with U | 0 | - | 4.97 | 901,126 |
| Countries of Oceania | 0 | - | 5.00 | 1,044,405 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,015,295 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,710 |
| Counties of England | 0 | - | 4.97 | 791,347 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 637,120 |
| Oceania Map Quiz | 0 | - | 4.98 | 637,219 |
| Top World Languages | 0 | - | 4.92 | 815,586 |
| Countries of South America | 0 | - | 5.00 | 917,975 |
| Africa Capitals Quiz | 0 | - | 4.99 | 732,328 |
| Asia Capitals Quiz | 0 | - | 4.98 | 687,911 |
| Countries that Start with K | 0 | - | 4.97 | 810,989 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,876 |
| US States with an Empty Map | 0 | - | 5.00 | 620,418 |
| Countries that Start with V | 0 | - | 4.98 | 606,166 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 503,241 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,650 |
| Flags of Asia Quiz | 0 | - | 4.99 | 607,639 |
| Countries that Start with D | 0 | - | 4.96 | 703,673 |
| Countries That Border Russia | 0 | - | 4.98 | 459,890 |
| One Border Countries | 0 | - | 4.98 | 465,786 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,419 |
| South America Capitals Quiz | 0 | - | 5.00 | 478,489 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,836 |
| Countries with Four Letters | 0 | - | 4.99 | 419,600 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,659 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,498 |
| Countries Bordering France | 0 | - | 4.83 | 400,662 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 378,418 |
| Northernmost Countries | 0 | - | 4.99 | 358,752 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,891 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,833 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,644 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,794 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,443 |
| Landlocked Countries | 0 | - | 4.99 | 415,456 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 426,015 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,991 |
| Australia Map Quiz | 0 | - | 4.94 | 342,952 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,445 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 414,783 |
| Majority Muslim Countries | 0 | - | 4.98 | 370,974 |
| Countries that Start with H | 0 | - | 4.96 | 599,708 |
| Countries that Start with J | 0 | - | 4.98 | 597,740 |
| World Capitals by Proximity | 0 | - | 4.91 | 329,221 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,546 |
| "Land" Countries | 0 | - | 4.98 | 334,119 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,738 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 287,011 |
| Canada Provinces and Territories | 0 | - | 5.00 | 339,117 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,933 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 311,134 |
| Flags of Africa Quiz | 0 | - | 5.00 | 465,466 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,879 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,679 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 266,800 |
| Countries with Z | 0 | - | 4.98 | 288,276 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,750 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,608 |
| Flags of North and South America | 0 | - | 4.99 | 369,106 |
| EU Countries Quiz | 0 | - | 4.99 | 270,973 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,974 |
| Countries that Border China | 0 | - | 4.96 | 262,196 |
| French-Speaking Countries | 0 | - | 4.85 | 269,325 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 259,064 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,477 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,813 |
| Every Country Shape | 0 | - | 5.00 | 460,658 |
| Europe Capital to Country | 0 | - | 4.99 | 248,521 |
| Longest International Borders | 0 | - | 4.99 | 264,128 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 269,565 |
| Biggest Cities by Language | 0 | - | 4.96 | 244,460 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 325,901 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 242,160 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,119 |
| Megacities on a World Map | 0 | - | 4.98 | 251,841 |
| World Currency Quiz | 0 | - | 4.92 | 299,688 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,801 |
| NATO Countries | 0 | - | 4.98 | 277,328 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,140 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,720 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,685 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,854 |
| Official Cities in the UK | 0 | - | 4.89 | 281,452 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,613 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,444 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,004 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,781 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,785 |
| Countries with Megacities | 0 | - | 4.99 | 248,247 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 229,294 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,450 |
| World Capitals by Map | 0 | - | 5.00 | 284,307 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,145 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,061 |
| World's Busiest Airports | 0 | - | 4.95 | 215,914 |
| Country Chain | 0 | - | 4.96 | 216,140 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,888 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,740 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,981 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,298 |
| Independence from Whom | 0 | - | 4.99 | 210,180 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 248,023 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,890 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,925 |
| Countries with Six Letters | 0 | - | 4.93 | 210,734 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,798 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,658 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,931 |
| Flags of Oceania | 0 | - | 5.00 | 256,286 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,976 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,480 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,165 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,570 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 212,230 |
| Countries in their Native Language | 0 | - | 4.99 | 197,039 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,700 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 172,114 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,592 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,636 |
| Monarchies of the World | 0 | - | 4.94 | 167,117 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,778 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 191,151 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,736 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,268 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,764 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,219 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,202 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,766 |
| Countries That End in Y | 0 | - | 4.90 | 185,296 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,732 |
| Olympic Host Countries | 0 | - | 4.98 | 199,261 |
| Countries With the Most Languages | 0 | - | 4.89 | 200,370 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,073 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,372 |
| Every European Country Shape | 0 | - | 4.96 | 200,598 |
| Countries of the Middle East | 0 | - | 4.96 | 199,518 |
| Countries by Official Language | 0 | - | 4.95 | 193,204 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,431 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,653 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,925 |
| Counties of Ireland | 0 | - | 4.92 | 193,683 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,729 |
| Countries Bordering India | 0 | - | 4.98 | 163,109 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,838 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,590 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,891 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,789 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,550 |
| European Cities by Clue | 0 | - | 4.70 | 88,887 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,013 |
| Islands by Country #2 | 0 | - | 4.80 | 77,121 |
