| Island Countries | 0 | - | 4.99 | 712,644 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,668 |
| European Countries by Clue | 0 | - | 4.92 | 184,178 |
| Countries by Military Spending | 0 | - | 4.93 | 179,028 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,771 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,897,229 |
| US States Quiz | 0 | - | 5.00 | 17,000,652 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,654,400 |
| United States Map Quiz | 0 | - | 4.98 | 4,171,747 |
| World Capitals Quiz | 0 | - | 5.00 | 5,107,621 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,051 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,849,636 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,408 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,326 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,093 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,805,926 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,028 |
| All Country Flags of the World | 0 | - | 5.00 | 3,715,832 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,125,384 |
| Countries that Start with B | 0 | - | 4.95 | 2,306,893 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,172 |
| Countries of Africa | 0 | - | 5.00 | 2,560,833 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,670 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,101 |
| South America Map Quiz | 0 | - | 5.00 | 1,556,925 |
| Countries that Start with C | 0 | - | 4.96 | 1,831,793 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,419 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,435 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,487 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,093 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,079 |
| Countries that Start with G | 0 | - | 4.97 | 1,511,812 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,489 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,359 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,335,951 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,077 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,783 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,242 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,015 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,381 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,088 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,258,666 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,024 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,829 |
| Random Country to Capital | 0 | - | 4.98 | 928,532 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,059 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,401 |
| Asia Map Quiz | 0 | - | 4.99 | 925,447 |
| Countries that Start with U | 0 | - | 4.97 | 908,604 |
| Countries of Oceania | 0 | - | 5.00 | 1,063,798 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,031,869 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,577 |
| Counties of England | 0 | - | 4.97 | 803,152 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,720 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,584 |
| Top World Languages | 0 | - | 4.92 | 830,110 |
| Countries of South America | 0 | - | 5.00 | 932,999 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,068 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,046 |
| Countries that Start with K | 0 | - | 4.97 | 820,925 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,511 |
| US States with an Empty Map | 0 | - | 5.00 | 628,838 |
| Countries that Start with V | 0 | - | 4.98 | 612,108 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,289 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,169 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,613 |
| Countries that Start with D | 0 | - | 4.96 | 716,659 |
| Countries That Border Russia | 0 | - | 4.98 | 464,562 |
| One Border Countries | 0 | - | 4.98 | 472,069 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,580 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,074 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,821 |
| Countries with Four Letters | 0 | - | 4.99 | 425,954 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,666 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,687 |
| Countries Bordering France | 0 | - | 4.83 | 404,981 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,580 |
| Northernmost Countries | 0 | - | 4.99 | 364,125 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,289 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,752 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,918 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,704 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,089 |
| Landlocked Countries | 0 | - | 4.99 | 426,127 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,985 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,178 |
| Australia Map Quiz | 0 | - | 4.95 | 346,222 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,119 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,735 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,847 |
| Countries that Start with H | 0 | - | 4.96 | 609,737 |
| Countries that Start with J | 0 | - | 4.98 | 607,127 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,987 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,000 |
| "Land" Countries | 0 | - | 4.98 | 338,447 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,027 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,275 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,368 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,476 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,089 |
| Flags of Africa Quiz | 0 | - | 5.00 | 477,880 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,833 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,395 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 274,972 |
| Countries with Z | 0 | - | 4.98 | 292,520 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,687 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,190 |
| Flags of North and South America | 0 | - | 4.99 | 377,204 |
| EU Countries Quiz | 0 | - | 4.99 | 278,065 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,299 |
| Countries that Border China | 0 | - | 4.96 | 264,328 |
| French-Speaking Countries | 0 | - | 4.85 | 271,716 |
| Countries with Five Letters | 0 | - | 4.96 | 283,987 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,202 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,499 |
| Every Country Shape | 0 | - | 5.00 | 471,377 |
| Europe Capital to Country | 0 | - | 4.99 | 252,176 |
| Longest International Borders | 0 | - | 4.99 | 265,844 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,096 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,707 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,660 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,664 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,160 |
| Megacities on a World Map | 0 | - | 4.98 | 257,036 |
| World Currency Quiz | 0 | - | 4.92 | 306,900 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,305 |
| NATO Countries | 0 | - | 4.98 | 283,546 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,602 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,014 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,855 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,405 |
| Official Cities in the UK | 0 | - | 4.89 | 286,367 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,536 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,601 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,157 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,192 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,852 |
| Countries with Megacities | 0 | - | 4.99 | 267,273 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,670 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,576 |
| World Capitals by Map | 0 | - | 5.00 | 289,477 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,341 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,004 |
| World's Busiest Airports | 0 | - | 4.96 | 237,426 |
| Country Chain | 0 | - | 4.96 | 218,495 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,973 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,811 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,657 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,720 |
| Independence from Whom | 0 | - | 4.99 | 213,127 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,485 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,888 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,050 |
| Countries with Six Letters | 0 | - | 4.94 | 214,545 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,268 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,736 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,156 |
| Flags of Oceania | 0 | - | 5.00 | 262,847 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,831 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,385 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,220 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,508 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,122 |
| Countries in their Native Language | 0 | - | 4.99 | 199,782 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,415 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,724 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,945 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,494 |
| Monarchies of the World | 0 | - | 4.94 | 170,280 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,326 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,007 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,674 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,011 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,651 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,247 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,038 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,283 |
| Countries That End in Y | 0 | - | 4.91 | 186,101 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,755 |
| Olympic Host Countries | 0 | - | 4.98 | 202,013 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,645 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,255 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,692 |
| Every European Country Shape | 0 | - | 4.96 | 203,048 |
| Countries of the Middle East | 0 | - | 4.96 | 202,993 |
| Countries by Official Language | 0 | - | 4.95 | 196,043 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,843 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,168 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,138 |
| Counties of Ireland | 0 | - | 4.92 | 197,377 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,774 |
| Countries Bordering India | 0 | - | 4.98 | 163,827 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,304 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,158 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,298 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,001 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,710 |
| European Cities by Clue | 0 | - | 4.70 | 89,178 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,420 |
| Islands by Country #2 | 0 | - | 4.80 | 77,893 |
