| Island Countries | 0 | - | 4.99 | 707,400 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,106 |
| European Countries by Clue | 0 | - | 4.92 | 182,325 |
| Countries by Military Spending | 0 | - | 4.93 | 176,326 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,283 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,880,383 |
| US States Quiz | 0 | - | 5.00 | 16,688,440 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,585,450 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,514 |
| World Capitals Quiz | 0 | - | 5.00 | 5,028,329 |
| Europe Map Quiz | 0 | - | 5.00 | 4,729,076 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,799,023 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,975 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,434 |
| Random Capital to Country | 0 | - | 4.99 | 2,577,064 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,712,590 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,419 |
| All Country Flags of the World | 0 | - | 5.00 | 3,597,602 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,087,082 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,811 |
| Countries that Start with A | 0 | - | 4.97 | 2,145,608 |
| Countries of Africa | 0 | - | 5.00 | 2,505,919 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,439,053 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,788 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,698 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,452 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,446 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,780 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,434,174 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,958 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,509 |
| Countries that Start with G | 0 | - | 4.97 | 1,492,046 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,740 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,825 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,319,164 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,619 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,703 |
| Countries that Start with P | 0 | - | 4.94 | 1,208,041 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,833 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,983 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,213 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,225,244 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,353 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,843 |
| Random Country to Capital | 0 | - | 4.98 | 911,027 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,780 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,824 |
| Asia Map Quiz | 0 | - | 4.99 | 906,406 |
| Countries that Start with U | 0 | - | 4.97 | 899,609 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,318 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,979 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,364 |
| Counties of England | 0 | - | 4.97 | 788,733 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,621 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,825 |
| Top World Languages | 0 | - | 4.92 | 812,483 |
| Countries of South America | 0 | - | 5.00 | 913,951 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,764 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,253 |
| Countries that Start with K | 0 | - | 4.96 | 808,953 |
| UK Cities Map Quiz | 0 | - | 4.95 | 462,022 |
| US States with an Empty Map | 0 | - | 5.00 | 618,428 |
| Countries that Start with V | 0 | - | 4.98 | 604,795 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,474 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,084 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,961 |
| Countries that Start with D | 0 | - | 4.96 | 700,953 |
| Countries That Border Russia | 0 | - | 4.98 | 458,705 |
| One Border Countries | 0 | - | 4.98 | 463,934 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,584 |
| South America Capitals Quiz | 0 | - | 5.00 | 477,008 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,362 |
| Countries with Four Letters | 0 | - | 4.99 | 418,274 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,327 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,593 |
| Countries Bordering France | 0 | - | 4.85 | 398,084 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,405 |
| Northernmost Countries | 0 | - | 4.99 | 357,453 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,177 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,966 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,865 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,150 |
| Counties of England Map Quiz | 0 | - | 4.97 | 306,014 |
| Landlocked Countries | 0 | - | 4.99 | 413,171 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,993 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,195 |
| Australia Map Quiz | 0 | - | 4.94 | 342,344 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,606 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,415 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,221 |
| Countries that Start with H | 0 | - | 4.96 | 597,457 |
| Countries that Start with J | 0 | - | 4.98 | 595,523 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,145 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,661 |
| "Land" Countries | 0 | - | 4.98 | 333,511 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,302 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,629 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,551 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,133 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,288 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,724 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,669 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,127 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,893 |
| Countries with Z | 0 | - | 4.98 | 287,737 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,988 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,790 |
| Flags of North and South America | 0 | - | 4.99 | 366,404 |
| EU Countries Quiz | 0 | - | 4.99 | 269,663 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,084 |
| Countries that Border China | 0 | - | 4.96 | 261,752 |
| French-Speaking Countries | 0 | - | 4.85 | 268,677 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,567 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,137 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,698 |
| Every Country Shape | 0 | - | 5.00 | 458,373 |
| Europe Capital to Country | 0 | - | 4.99 | 247,393 |
| Longest International Borders | 0 | - | 4.99 | 263,444 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,952 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,766 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,356 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,537 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,742 |
| Megacities on a World Map | 0 | - | 4.98 | 250,728 |
| World Currency Quiz | 0 | - | 4.92 | 298,097 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,232 |
| NATO Countries | 0 | - | 4.98 | 275,409 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,843 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,971 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 224,054 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,328 |
| Official Cities in the UK | 0 | - | 4.89 | 280,337 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,979 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,152 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,195 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,314 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,375 |
| Countries with Megacities | 0 | - | 4.99 | 246,423 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,692 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,806 |
| World Capitals by Map | 0 | - | 5.00 | 282,995 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,881 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,305 |
| World's Busiest Airports | 0 | - | 4.94 | 210,221 |
| Country Chain | 0 | - | 4.96 | 215,626 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,298 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,536 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,539 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,840 |
| Independence from Whom | 0 | - | 4.99 | 209,563 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,585 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,558 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,476 |
| Countries with Six Letters | 0 | - | 4.93 | 210,258 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,532 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,435 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,264 |
| Flags of Oceania | 0 | - | 5.00 | 254,882 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,361 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,487 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,920 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,287 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,907 |
| Countries in their Native Language | 0 | - | 4.99 | 196,534 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,226 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,182 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,337 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,260 |
| Monarchies of the World | 0 | - | 4.94 | 166,482 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,472 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,651 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,313 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,910 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,072 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,048 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,835 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,701 |
| Countries That End in Y | 0 | - | 4.90 | 185,175 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,157 |
| Olympic Host Countries | 0 | - | 4.98 | 198,811 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,593 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,872 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,053 |
| Every European Country Shape | 0 | - | 4.96 | 199,996 |
| Countries of the Middle East | 0 | - | 4.96 | 198,791 |
| Countries by Official Language | 0 | - | 4.95 | 192,667 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,159 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 199,011 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,677 |
| Counties of Ireland | 0 | - | 4.92 | 192,917 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,363 |
| Countries Bordering India | 0 | - | 4.98 | 162,559 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,612 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,476 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,585 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,584 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,398 |
| European Cities by Clue | 0 | - | 4.70 | 88,781 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,936 |
| Islands by Country #2 | 0 | - | 4.80 | 76,961 |
