| Island Countries | 0 | - | 4.99 | 711,793 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,260 |
| 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 | 204,002 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,736,892 |
| US States Quiz | 0 | - | 5.00 | 16,958,370 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,643,354 |
| United States Map Quiz | 0 | - | 4.98 | 4,167,359 |
| World Capitals Quiz | 0 | - | 5.00 | 5,095,156 |
| Europe Map Quiz | 0 | - | 5.00 | 4,779,707 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,842,221 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,388,640 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,543,035 |
| Random Capital to Country | 0 | - | 4.99 | 2,598,118 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,792,464 |
| Africa Map Quiz | 0 | - | 5.00 | 2,125,629 |
| All Country Flags of the World | 0 | - | 5.00 | 3,697,628 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,109,402 |
| Countries that Start with B | 0 | - | 4.95 | 2,302,485 |
| Countries that Start with A | 0 | - | 4.98 | 2,171,390 |
| Countries of Africa | 0 | - | 5.00 | 2,552,147 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,450,974 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,695,967 |
| South America Map Quiz | 0 | - | 5.00 | 1,553,930 |
| Countries that Start with C | 0 | - | 4.96 | 1,828,385 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,386,113 |
| Countries that Start with S | 0 | - | 4.98 | 1,760,461 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,451,333 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,595,419 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,883,544 |
| Countries that Start with G | 0 | - | 4.97 | 1,508,769 |
| Countries that Start with M | 0 | - | 4.97 | 1,386,129 |
| Countries that Start with E | 0 | - | 4.95 | 1,382,465 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,333,320 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 904,128 |
| Countries that Start with I | 0 | - | 4.92 | 1,292,533 |
| Countries that Start with P | 0 | - | 4.94 | 1,220,120 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,052,516 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,095,768 |
| Countries that Start with N | 0 | - | 4.93 | 1,121,832 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,253,263 |
| Countries that Start with L | 0 | - | 4.98 | 1,094,782 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 908,888 |
| Random Country to Capital | 0 | - | 4.98 | 925,362 |
| Countries that Start with T | 0 | - | 4.90 | 1,013,360 |
| Biggest Cities in the United States | 0 | - | 4.94 | 984,322 |
| Asia Map Quiz | 0 | - | 4.99 | 922,764 |
| Countries that Start with U | 0 | - | 4.97 | 907,268 |
| Countries of Oceania | 0 | - | 5.00 | 1,060,352 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,028,593 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 735,440 |
| Counties of England | 0 | - | 4.97 | 801,017 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 642,998 |
| Oceania Map Quiz | 0 | - | 4.98 | 657,712 |
| Top World Languages | 0 | - | 4.92 | 827,292 |
| Countries of South America | 0 | - | 5.00 | 930,016 |
| Africa Capitals Quiz | 0 | - | 4.99 | 741,968 |
| Asia Capitals Quiz | 0 | - | 4.98 | 696,933 |
| Countries that Start with K | 0 | - | 4.97 | 819,144 |
| UK Cities Map Quiz | 0 | - | 4.96 | 465,846 |
| US States with an Empty Map | 0 | - | 5.00 | 627,362 |
| Countries that Start with V | 0 | - | 4.98 | 611,116 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 509,024 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,772 |
| Flags of Asia Quiz | 0 | - | 4.99 | 618,003 |
| Countries that Start with D | 0 | - | 4.96 | 714,204 |
| Countries That Border Russia | 0 | - | 4.98 | 463,838 |
| One Border Countries | 0 | - | 4.98 | 470,988 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 417,920 |
| South America Capitals Quiz | 0 | - | 5.00 | 483,836 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 408,598 |
| Countries with Four Letters | 0 | - | 4.99 | 424,808 |
| Countries with the Most Borders | 0 | - | 4.97 | 389,857 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 452,478 |
| Countries Bordering France | 0 | - | 4.83 | 404,294 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 381,744 |
| Northernmost Countries | 0 | - | 4.99 | 363,102 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 365,660 |
| 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 | 423,868 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 430,091 |
| World Map without 12 Countries | 0 | - | 4.97 | 345,565 |
| Australia Map Quiz | 0 | - | 4.95 | 345,712 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 367,455 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 419,759 |
| Majority Muslim Countries | 0 | - | 4.98 | 376,639 |
| Countries that Start with H | 0 | - | 4.96 | 607,983 |
| Countries that Start with J | 0 | - | 4.98 | 605,472 |
| World Capitals by Proximity | 0 | - | 4.91 | 333,048 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 336,441 |
| "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 | 291,870 |
| Canada Provinces and Territories | 0 | - | 5.00 | 345,043 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 296,813 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 313,570 |
| Flags of Africa Quiz | 0 | - | 5.00 | 475,517 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,112 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 238,002 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 273,812 |
| Countries with Z | 0 | - | 4.98 | 291,981 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,129 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 268,618 |
| Flags of North and South America | 0 | - | 4.99 | 375,733 |
| EU Countries Quiz | 0 | - | 4.99 | 276,735 |
| Biggest Cities in Germany | 0 | - | 4.95 | 294,655 |
| Countries that Border China | 0 | - | 4.96 | 263,924 |
| French-Speaking Countries | 0 | - | 4.85 | 271,311 |
| Countries with Five Letters | 0 | - | 4.96 | 283,230 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,995 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 290,303 |
| Every Country Shape | 0 | - | 5.00 | 469,382 |
| Europe Capital to Country | 0 | - | 4.99 | 251,535 |
| Longest International Borders | 0 | - | 4.99 | 265,531 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 275,721 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,383 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 333,295 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,270 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 237,729 |
| Megacities on a World Map | 0 | - | 4.98 | 256,157 |
| World Currency Quiz | 0 | - | 4.92 | 305,549 |
| Southernmost Countries of the World | 0 | - | 4.99 | 228,691 |
| NATO Countries | 0 | - | 4.98 | 282,520 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,361 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 213,370 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,401 |
| Places in their Native Language #1 | 0 | - | 4.85 | 242,937 |
| Official Cities in the UK | 0 | - | 4.89 | 285,419 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,029 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,385 |
| Countries Closest to Spain | 0 | - | 4.96 | 227,748 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,756 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,545 |
| Countries with Megacities | 0 | - | 4.99 | 265,897 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,223 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 233,942 |
| World Capitals by Map | 0 | - | 5.00 | 288,546 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,092 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 225,737 |
| World's Busiest Airports | 0 | - | 4.96 | 236,198 |
| Country Chain | 0 | - | 4.96 | 217,976 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 280,419 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 271,723 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,023 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,381 |
| Independence from Whom | 0 | - | 4.99 | 212,579 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,128 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,562 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,863 |
| Countries with Six Letters | 0 | - | 4.94 | 214,033 |
| 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 | 261,729 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,292 |
| Largest Countries with No Borders | 0 | - | 4.97 | 222,020 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,048 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,859 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 216,754 |
| 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 | 174,217 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,712 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,198 |
| Monarchies of the World | 0 | - | 4.94 | 169,745 |
| 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 | 168,812 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,124 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,064 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 191,395 |
| North America Capitals Quiz | 0 | - | 4.99 | 221,435 |
| Countries That End in Y | 0 | - | 4.91 | 186,001 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,208 |
| Olympic Host Countries | 0 | - | 4.98 | 201,559 |
| Countries With the Most Languages | 0 | - | 4.90 | 202,981 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,019 |
| 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 | 202,212 |
| Countries by Official Language | 0 | - | 4.95 | 195,654 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,322 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,926 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 153,926 |
| Counties of Ireland | 0 | - | 4.92 | 196,770 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,477 |
| Countries Bordering India | 0 | - | 4.98 | 163,707 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,898 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,062 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 163,379 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,829 |
| Countries with Multiple Big Islands | 0 | - | 4.92 | 126,347 |
| European Cities by Clue | 0 | - | 4.70 | 89,134 |
| Geography Analogies #1 | 0 | - | 4.69 | 96,144 |
| Islands by Country #2 | 0 | - | 4.80 | 77,705 |
