| Island Countries | 0 | - | 4.99 | 707,346 |
| Countries by Three Words #1 | 0 | - | 4.95 | 262,069 |
| European Countries by Clue | 0 | - | 4.92 | 182,313 |
| Countries by Military Spending | 0 | - | 4.93 | 176,301 |
| Countries by Three Words #2 | 0 | - | 4.97 | 198,235 |
| Countries of the World Quiz | 0 | - | 5.00 | 46,870,596 |
| US States Quiz | 0 | - | 5.00 | 16,684,756 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,584,766 |
| United States Map Quiz | 0 | - | 4.98 | 4,140,200 |
| World Capitals Quiz | 0 | - | 5.00 | 5,027,278 |
| Europe Map Quiz | 0 | - | 5.00 | 4,728,461 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,798,517 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,360,657 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,525,085 |
| Random Capital to Country | 0 | - | 4.99 | 2,576,803 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,711,502 |
| Africa Map Quiz | 0 | - | 5.00 | 2,103,137 |
| All Country Flags of the World | 0 | - | 5.00 | 3,596,361 |
| Word Scramble - Countries | 0 | - | 4.86 | 2,086,775 |
| Countries that Start with B | 0 | - | 4.95 | 2,278,512 |
| Countries that Start with A | 0 | - | 4.97 | 2,145,266 |
| Countries of Africa | 0 | - | 5.00 | 2,505,431 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,438,524 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,676,534 |
| South America Map Quiz | 0 | - | 5.00 | 1,540,550 |
| Countries that Start with C | 0 | - | 4.96 | 1,809,201 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,375,251 |
| Countries that Start with S | 0 | - | 4.98 | 1,743,569 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,433,927 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,569,600 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,846,059 |
| Countries that Start with G | 0 | - | 4.97 | 1,491,838 |
| Countries that Start with M | 0 | - | 4.97 | 1,372,566 |
| Countries that Start with E | 0 | - | 4.95 | 1,366,625 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,318,808 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 899,557 |
| Countries that Start with I | 0 | - | 4.92 | 1,279,506 |
| Countries that Start with P | 0 | - | 4.94 | 1,207,892 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,038,659 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,086,838 |
| Countries that Start with N | 0 | - | 4.93 | 1,109,068 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,224,796 |
| Countries that Start with L | 0 | - | 4.98 | 1,082,212 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 903,690 |
| Random Country to Capital | 0 | - | 4.98 | 910,809 |
| Countries that Start with T | 0 | - | 4.90 | 1,003,659 |
| Biggest Cities in the United States | 0 | - | 4.93 | 965,545 |
| Asia Map Quiz | 0 | - | 4.99 | 906,169 |
| Countries that Start with U | 0 | - | 4.97 | 899,520 |
| Countries of Oceania | 0 | - | 5.00 | 1,039,118 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,010,766 |
| Country Flags Quiz #3 | 0 | - | 4.98 | 729,259 |
| Counties of England | 0 | - | 4.97 | 788,547 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 635,525 |
| Oceania Map Quiz | 0 | - | 4.98 | 634,685 |
| Top World Languages | 0 | - | 4.92 | 812,277 |
| Countries of South America | 0 | - | 5.00 | 913,775 |
| Africa Capitals Quiz | 0 | - | 4.99 | 729,599 |
| Asia Capitals Quiz | 0 | - | 4.98 | 685,054 |
| Countries that Start with K | 0 | - | 4.96 | 808,828 |
| UK Cities Map Quiz | 0 | - | 4.95 | 461,976 |
| US States with an Empty Map | 0 | - | 5.00 | 618,327 |
| Countries that Start with V | 0 | - | 4.98 | 604,700 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 501,378 |
| Countries with the Longest Coastlines | 0 | - | 4.81 | 411,058 |
| Flags of Asia Quiz | 0 | - | 4.99 | 604,768 |
| Countries that Start with D | 0 | - | 4.96 | 700,790 |
| Countries That Border Russia | 0 | - | 4.98 | 458,644 |
| One Border Countries | 0 | - | 4.98 | 463,752 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 414,473 |
| South America Capitals Quiz | 0 | - | 5.00 | 476,934 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 401,136 |
| Countries with Four Letters | 0 | - | 4.99 | 418,195 |
| Countries with the Most Borders | 0 | - | 4.97 | 385,253 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 446,540 |
| Countries Bordering France | 0 | - | 4.85 | 397,599 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 377,356 |
| Northernmost Countries | 0 | - | 4.99 | 357,381 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 362,133 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 371,910 |
| Countries Bordering Germany | 0 | - | 4.99 | 366,797 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 365,133 |
| Counties of England Map Quiz | 0 | - | 4.97 | 305,984 |
| Landlocked Countries | 0 | - | 4.99 | 413,075 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 424,938 |
| World Map without 12 Countries | 0 | - | 4.97 | 342,124 |
| Australia Map Quiz | 0 | - | 4.94 | 342,292 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 363,573 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 413,359 |
| Majority Muslim Countries | 0 | - | 4.98 | 368,125 |
| Countries that Start with H | 0 | - | 4.96 | 597,307 |
| Countries that Start with J | 0 | - | 4.98 | 595,379 |
| World Capitals by Proximity | 0 | - | 4.91 | 328,084 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 332,587 |
| "Land" Countries | 0 | - | 4.98 | 333,480 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 299,287 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 282,612 |
| Canada Provinces and Territories | 0 | - | 5.00 | 337,472 |
| Country Shapes Quiz #3 | 0 | - | 4.91 | 294,037 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 310,197 |
| Flags of Africa Quiz | 0 | - | 5.00 | 462,552 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 307,631 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 236,114 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 261,829 |
| Countries with Z | 0 | - | 4.98 | 287,704 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 292,948 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 265,759 |
| Flags of North and South America | 0 | - | 4.99 | 366,097 |
| EU Countries Quiz | 0 | - | 4.99 | 269,580 |
| Biggest Cities in Germany | 0 | - | 4.95 | 291,037 |
| Countries that Border China | 0 | - | 4.96 | 261,732 |
| French-Speaking Countries | 0 | - | 4.85 | 268,651 |
| Countries with Five Letters Quiz | 0 | - | 4.96 | 258,539 |
| United States Cities Map Quiz | 0 | - | 4.96 | 213,118 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 284,621 |
| Every Country Shape | 0 | - | 5.00 | 458,253 |
| Europe Capital to Country | 0 | - | 4.99 | 247,356 |
| Longest International Borders | 0 | - | 4.99 | 263,414 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 267,841 |
| Biggest Cities by Language | 0 | - | 4.96 | 230,738 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 323,257 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 241,505 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 235,714 |
| Megacities on a World Map | 0 | - | 4.98 | 250,633 |
| World Currency Quiz | 0 | - | 4.92 | 297,969 |
| Southernmost Countries of the World | 0 | - | 4.99 | 226,206 |
| NATO Countries | 0 | - | 4.98 | 275,291 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 244,829 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 209,915 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 223,973 |
| Places in their Native Language #1 | 0 | - | 4.84 | 239,309 |
| Official Cities in the UK | 0 | - | 4.89 | 280,269 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 212,940 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,133 |
| Countries Closest to Spain | 0 | - | 4.96 | 225,170 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 227,288 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 221,352 |
| Countries with Megacities | 0 | - | 4.99 | 246,335 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 228,661 |
| Top 10 Most Populous European Countries | 0 | - | 4.98 | 230,766 |
| World Capitals by Map | 0 | - | 5.00 | 282,935 |
| Countries that Produce the Most Wine | 0 | - | 4.86 | 190,856 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.93 | 223,283 |
| World's Busiest Airports | 0 | - | 4.94 | 210,173 |
| Country Chain | 0 | - | 4.96 | 215,606 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 277,267 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 266,478 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 215,524 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 193,819 |
| Independence from Whom | 0 | - | 4.99 | 209,536 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 246,456 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 184,547 |
| Countries by Borders #1 | 0 | - | 5.00 | 193,427 |
| Countries with Six Letters | 0 | - | 4.93 | 210,239 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 172,505 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 202,428 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 206,213 |
| Flags of Oceania | 0 | - | 5.00 | 254,786 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 222,324 |
| Largest Countries with No Borders | 0 | - | 4.97 | 219,201 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 179,907 |
| Countries Closest to Canada | 0 | - | 4.90 | 197,275 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 210,822 |
| Countries in their Native Language | 0 | - | 4.99 | 196,508 |
| Countries Closest to Italy | 0 | - | 4.97 | 196,198 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 171,128 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 169,329 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 196,212 |
| Monarchies of the World | 0 | - | 4.94 | 166,436 |
| Countries with Letters Missing | 0 | - | 4.97 | 184,453 |
| Biggest Countries by Area A-Z | 0 | - | 4.95 | 190,626 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 190,293 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 166,887 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 225,038 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,045 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 189,814 |
| North America Capitals Quiz | 0 | - | 4.99 | 216,614 |
| Countries That End in Y | 0 | - | 4.90 | 185,168 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 197,131 |
| Olympic Host Countries | 0 | - | 4.98 | 198,789 |
| Countries With the Most Languages | 0 | - | 4.90 | 199,564 |
| Regions of Countries #1 | 0 | - | 4.97 | 158,861 |
| Countries with the Highest Population Density | 0 | - | 4.94 | 164,029 |
| Every European Country Shape | 0 | - | 4.96 | 199,899 |
| Countries of the Middle East | 0 | - | 4.96 | 198,758 |
| Countries by Official Language | 0 | - | 4.95 | 192,631 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,143 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 198,987 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 152,660 |
| Counties of Ireland | 0 | - | 4.92 | 192,862 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 179,341 |
| Countries Bordering India | 0 | - | 4.98 | 162,554 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 143,601 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,465 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 161,573 |
| Countries with the Most Forest | 0 | - | 4.87 | 146,568 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,382 |
| European Cities by Clue | 0 | - | 4.70 | 88,776 |
| Geography Analogies #1 | 0 | - | 4.69 | 94,931 |
| Islands by Country #2 | 0 | - | 4.80 | 76,951 |
