| Island Countries | 0 | - | 4.99 | 711,785 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,259 |
| European Countries by Clue | 0 | - | 4.92 | 184,010 |
| Countries by Military Spending | 0 | - | 4.93 | 178,733 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,000 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,736,400 |
| US States Quiz | 0 | - | 5.00 | 16,958,241 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,643,327 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,352 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,109 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,689 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,211 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,624 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,022 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,111 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,416 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,618 |
| All Country Flags of the World | 0 | - | 5.00 | 3,697,544 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,377 |
| Countries that Start with B | 0 | - | 4.95 | 2,302,466 |
| Countries that Start with A | 0 | - | 4.98 | 2,171,369 |
| Countries of Africa | 0 | - | 5.00 | 2,552,124 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,971 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,695,954 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,921 |
| Countries that Start with C | 0 | - | 4.96 | 1,828,369 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,111 |
| Countries that Start with S | 0 | - | 4.98 | 1,760,448 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,320 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,411 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,512 |
| Countries that Start with G | 0 | - | 4.97 | 1,508,756 |
| Countries that Start with M | 0 | - | 4.97 | 1,386,120 |
| Countries that Start with E | 0 | - | 4.95 | 1,382,456 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,319 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,127 |
| Countries that Start with I | 0 | - | 4.92 | 1,292,528 |
| Countries that Start with P | 0 | - | 4.94 | 1,220,111 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,510 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,763 |
| Countries that Start with N | 0 | - | 4.93 | 1,121,825 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,253 |
| Countries that Start with L | 0 | - | 4.98 | 1,094,778 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,882 |
| Random Country to Capital | 0 | - | 4.98 | 925,360 |
| Countries that Start with T | 0 | - | 4.90 | 1,013,354 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,305 |
| Asia Map Quiz | 0 | - | 4.99 | 922,761 |
| Countries that Start with U | 0 | - | 4.97 | 907,264 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,337 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,586 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,436 |
| Counties of England | 0 | - | 4.97 | 801,010 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,997 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,709 |
| Top World Languages | 0 | - | 4.92 | 827,279 |
| Countries of South America | 0 | - | 5.00 | 930,008 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,964 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,918 |
| Countries that Start with K | 0 | - | 4.97 | 819,138 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,844 |
| US States with an Empty Map | 0 | - | 5.00 | 627,360 |
| Countries that Start with V | 0 | - | 4.98 | 611,114 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,020 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,768 |
| Flags of Asia Quiz | 0 | - | 4.99 | 617,991 |
| Countries that Start with D | 0 | - | 4.96 | 714,199 |
| Countries That Border Russia | 0 | - | 4.98 | 463,834 |
| One Border Countries | 0 | - | 4.98 | 470,979 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,918 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,833 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,594 |
| Countries with Four Letters | 0 | - | 4.99 | 424,806 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,849 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,474 |
| Countries Bordering France | 0 | - | 4.83 | 404,293 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,741 |
| Northernmost Countries | 0 | - | 4.99 | 363,098 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,658 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,122 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,278 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,202 |
| Counties of England Map Quiz | 0 | - | 4.97 | 308,637 |
| Landlocked Countries | 0 | - | 4.99 | 423,861 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,088 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,565 |
| Australia Map Quiz | 0 | - | 4.95 | 345,709 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,453 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,756 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,638 |
| Countries that Start with H | 0 | - | 4.96 | 607,979 |
| Countries that Start with J | 0 | - | 4.98 | 605,467 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,047 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,437 |
| "Land" Countries | 0 | - | 4.98 | 337,896 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 301,619 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 291,869 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,042 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,812 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,566 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,507 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,110 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,002 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 273,805 |
| Countries with Z | 0 | - | 4.98 | 291,979 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,127 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,616 |
| Flags of North and South America | 0 | - | 4.99 | 375,722 |
| EU Countries Quiz | 0 | - | 4.99 | 276,728 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,653 |
| Countries that Border China | 0 | - | 4.96 | 263,924 |
| French-Speaking Countries | 0 | - | 4.85 | 271,308 |
| Countries with Five Letters | 0 | - | 4.96 | 283,226 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,994 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,301 |
| Every Country Shape | 0 | - | 5.00 | 469,376 |
| Europe Capital to Country | 0 | - | 4.99 | 251,534 |
| Longest International Borders | 0 | - | 4.99 | 265,531 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,718 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,383 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,286 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,269 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,728 |
| Megacities on a World Map | 0 | - | 4.98 | 256,155 |
| World Currency Quiz | 0 | - | 4.92 | 305,542 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,682 |
| NATO Countries | 0 | - | 4.98 | 282,515 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,361 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,368 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,399 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,934 |
| Official Cities in the UK | 0 | - | 4.89 | 285,417 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,026 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,382 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,746 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,755 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,543 |
| Countries with Megacities | 0 | - | 4.99 | 265,893 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,222 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,939 |
| World Capitals by Map | 0 | - | 5.00 | 288,542 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,091 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,735 |
| World's Busiest Airports | 0 | - | 4.96 | 236,194 |
| Country Chain | 0 | - | 4.96 | 217,974 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,418 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,721 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,020 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,380 |
| Independence from Whom | 0 | - | 4.99 | 212,577 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,128 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,561 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,861 |
| Countries with Six Letters | 0 | - | 4.94 | 214,032 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,081 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,562 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 209,573 |
| Flags of Oceania | 0 | - | 5.00 | 261,725 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,289 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,019 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,047 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,859 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,749 |
| Countries in their Native Language | 0 | - | 4.99 | 199,428 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,011 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,216 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,712 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,196 |
| Monarchies of the World | 0 | - | 4.94 | 169,743 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,016 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 193,578 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,389 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,811 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,122 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,064 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,393 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,429 |
| Countries That End in Y | 0 | - | 4.91 | 186,001 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,205 |
| Olympic Host Countries | 0 | - | 4.98 | 201,556 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,977 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,017 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,430 |
| Every European Country Shape | 0 | - | 4.96 | 202,570 |
| Countries of the Middle East | 0 | - | 4.96 | 202,211 |
| Countries by Official Language | 0 | - | 4.95 | 195,652 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,321 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,925 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,926 |
| Counties of Ireland | 0 | - | 4.92 | 196,767 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,474 |
| Countries Bordering India | 0 | - | 4.98 | 163,707 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,895 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,062 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,377 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,829 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,345 |
| European Cities by Clue | 0 | - | 4.70 | 89,133 |
| Geography Analogies #1 | 0 | - | 4.69 | 96,144 |
| Islands by Country #2 | 0 | - | 4.80 | 77,703 |
