| Island Countries | 0 | - | 4.99 | 707,861 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,371 |
| European Countries by Clue | 0 | - | 4.92 | 182,438 |
| Countries by Military Spending | 0 | - | 4.93 | 176,523 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,792 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,971,190 |
| US States Quiz | 0 | - | 5.00 | 16,718,743 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,591,114 |
| United States Map Quiz | 0 | - | 4.98 | 4,143,429 |
| World Capitals Quiz | 0 | - | 5.00 | 5,035,647 |
| Europe Map Quiz | 0 | - | 5.00 | 4,734,336 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,803,819 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,364,111 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,527,470 |
| Random Capital to Country | 0 | - | 4.99 | 2,579,346 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,722,065 |
| Africa Map Quiz | 0 | - | 5.00 | 2,105,665 |
| All Country Flags of the World | 0 | - | 5.00 | 3,608,198 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,089,295 |
| Countries that Start with B | 0 | - | 4.95 | 2,281,156 |
| Countries that Start with A | 0 | - | 4.97 | 2,148,340 |
| Countries of Africa | 0 | - | 5.00 | 2,510,656 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,441,852 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,678,808 |
| South America Map Quiz | 0 | - | 5.00 | 1,541,882 |
| Countries that Start with C | 0 | - | 4.96 | 1,811,380 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,376,683 |
| Countries that Start with S | 0 | - | 4.98 | 1,745,504 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,436,152 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,572,500 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,850,556 |
| Countries that Start with G | 0 | - | 4.97 | 1,493,742 |
| Countries that Start with M | 0 | - | 4.97 | 1,374,114 |
| Countries that Start with E | 0 | - | 4.95 | 1,368,371 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,320,693 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 900,012 |
| Countries that Start with I | 0 | - | 4.92 | 1,280,996 |
| Countries that Start with P | 0 | - | 4.94 | 1,209,217 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,040,329 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,087,952 |
| Countries that Start with N | 0 | - | 4.93 | 1,110,457 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,228,501 |
| Countries that Start with L | 0 | - | 4.98 | 1,083,557 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 904,532 |
| Random Country to Capital | 0 | - | 4.98 | 912,381 |
| Countries that Start with T | 0 | - | 4.90 | 1,004,720 |
| Biggest Cities in the United States | 0 | - | 4.93 | 967,801 |
| Asia Map Quiz | 0 | - | 4.99 | 907,834 |
| Countries that Start with U | 0 | - | 4.97 | 900,330 |
| Countries of Oceania | 0 | - | 5.00 | 1,041,933 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,012,952 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 730,066 |
| Counties of England | 0 | - | 4.97 | 789,933 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 636,407 |
| Oceania Map Quiz | 0 | - | 4.98 | 636,001 |
| Top World Languages | 0 | - | 4.92 | 813,943 |
| Countries of South America | 0 | - | 5.00 | 915,896 |
| Africa Capitals Quiz | 0 | - | 4.99 | 730,971 |
| Asia Capitals Quiz | 0 | - | 4.98 | 686,610 |
| Countries that Start with K | 0 | - | 4.97 | 809,938 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,396 |
| US States with an Empty Map | 0 | - | 5.00 | 619,447 |
| Countries that Start with V | 0 | - | 4.98 | 605,489 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 502,375 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 411,362 |
| Flags of Asia Quiz | 0 | - | 4.99 | 606,342 |
| Countries that Start with D | 0 | - | 4.96 | 702,278 |
| Countries That Border Russia | 0 | - | 4.98 | 459,217 |
| One Border Countries | 0 | - | 4.98 | 464,866 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 415,067 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,652 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 402,175 |
| Countries with Four Letters | 0 | - | 4.99 | 418,889 |
| Countries with the Most Borders | 0 | - | 4.97 | 386,059 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 447,053 |
| Countries Bordering France | 0 | - | 4.83 | 399,947 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,911 |
| Northernmost Countries | 0 | - | 4.99 | 358,056 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,532 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 372,359 |
| Countries Bordering Germany | 0 | - | 4.99 | 367,280 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,445 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,239 |
| Landlocked Countries | 0 | - | 4.99 | 414,254 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 425,520 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,585 |
| Australia Map Quiz | 0 | - | 4.94 | 342,680 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 364,067 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,978 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,851 |
| Countries that Start with H | 0 | - | 4.96 | 598,556 |
| Countries that Start with J | 0 | - | 4.98 | 596,608 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,712 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 333,080 |
| "Land" Countries | 0 | - | 4.98 | 333,812 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,474 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,781 |
| Canada Provinces and Territories | 0 | - | 5.00 | 338,374 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 294,658 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,756 |
| Flags of Africa Quiz | 0 | - | 5.00 | 464,136 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 308,071 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,478 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 262,405 |
| Countries with Z | 0 | - | 4.98 | 288,015 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 293,324 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 266,249 |
| Flags of North and South America | 0 | - | 4.99 | 368,052 |
| EU Countries Quiz | 0 | - | 4.99 | 270,292 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,518 |
| Countries that Border China | 0 | - | 4.96 | 261,943 |
| French-Speaking Countries | 0 | - | 4.85 | 268,995 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,808 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,311 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 285,238 |
| Every Country Shape | 0 | - | 5.00 | 459,538 |
| Europe Capital to Country | 0 | - | 4.99 | 248,137 |
| Longest International Borders | 0 | - | 4.99 | 263,921 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 268,757 |
| Biggest Cities by Language | 0 | - | 4.96 | 232,929 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 324,786 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,842 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,946 |
| Megacities on a World Map | 0 | - | 4.98 | 251,231 |
| World Currency Quiz | 0 | - | 4.92 | 298,896 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,493 |
| NATO Countries | 0 | - | 4.98 | 276,267 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,980 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 210,328 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,424 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,608 |
| Official Cities in the UK | 0 | - | 4.89 | 280,862 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 213,282 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,306 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,442 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,529 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,600 |
| Countries with Megacities | 0 | - | 4.99 | 247,493 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,945 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 231,127 |
| World Capitals by Map | 0 | - | 5.00 | 283,680 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 191,009 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 223,777 |
| World's Busiest Airports | 0 | - | 4.94 | 210,729 |
| Country Chain | 0 | - | 4.96 | 215,868 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,552 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 267,199 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,746 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 194,056 |
| Independence from Whom | 0 | - | 4.99 | 209,856 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 247,564 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,736 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,690 |
| Countries with Six Letters | 0 | - | 4.93 | 210,487 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,676 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,549 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,604 |
| Flags of Oceania | 0 | - | 5.00 | 255,667 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,650 |
| Largest Countries with No Borders | 0 | - | 4.97 | 220,167 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,034 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,445 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 211,588 |
| Countries in their Native Language | 0 | - | 4.99 | 196,762 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,442 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,500 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,446 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,478 |
| Monarchies of the World | 0 | - | 4.94 | 166,794 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,625 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 190,876 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,536 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 167,139 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,338 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,131 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,006 |
| North America Capitals Quiz | 0 | - | 4.99 | 217,202 |
| Countries That End in Y | 0 | - | 4.90 | 185,237 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,405 |
| Olympic Host Countries | 0 | - | 4.98 | 199,017 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,947 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,981 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,211 |
| Every European Country Shape | 0 | - | 4.96 | 200,364 |
| Countries of the Middle East | 0 | - | 4.96 | 199,136 |
| Countries by Official Language | 0 | - | 4.95 | 192,912 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,263 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,384 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,787 |
| Counties of Ireland | 0 | - | 4.92 | 193,250 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,537 |
| Countries Bordering India | 0 | - | 4.98 | 162,655 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,699 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,532 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,742 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,688 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,463 |
| European Cities by Clue | 0 | - | 4.70 | 88,844 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,984 |
| Islands by Country #2 | 0 | - | 4.80 | 77,033 |
