| Island Countries | 0 | - | 4.99 | 710,316 |
| Countries by Three Words #1 | 0 | - | 4.95 | 265,420 |
| European Countries by Clue | 0 | - | 4.92 | 183,626 |
| Countries by Military Spending | 0 | - | 4.93 | 177,721 |
| Countries by Three Words #2 | 0 | - | 4.97 | 202,417 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,445,791 |
| US States Quiz | 0 | - | 5.00 | 16,872,500 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,622,327 |
| United States Map Quiz | 0 | - | 4.98 | 4,158,225 |
| World Capitals Quiz | 0 | - | 5.00 | 5,072,666 |
| Europe Map Quiz | 0 | - | 5.00 | 4,762,544 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,828,347 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,379,235 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,537,076 |
| Random Capital to Country | 0 | - | 4.99 | 2,590,943 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,766,513 |
| Africa Map Quiz | 0 | - | 5.00 | 2,117,716 |
| All Country Flags of the World | 0 | - | 5.00 | 3,663,029 |
| Word Scramble - Countries | 0 | - | 4.87 | 2,101,359 |
| Countries that Start with B | 0 | - | 4.95 | 2,294,040 |
| Countries that Start with A | 0 | - | 4.98 | 2,162,315 |
| Countries of Africa | 0 | - | 5.00 | 2,536,569 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,448,178 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,689,483 |
| South America Map Quiz | 0 | - | 5.00 | 1,549,629 |
| Countries that Start with C | 0 | - | 4.96 | 1,821,804 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,382,863 |
| Countries that Start with S | 0 | - | 4.98 | 1,754,580 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,445,462 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,586,051 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,871,393 |
| Countries that Start with G | 0 | - | 4.97 | 1,503,064 |
| Countries that Start with M | 0 | - | 4.97 | 1,381,495 |
| Countries that Start with E | 0 | - | 4.95 | 1,376,971 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,328,599 |
| Central America and Caribbean Map Quiz | 0 | - | 4.89 | 902,265 |
| Countries that Start with I | 0 | - | 4.92 | 1,288,128 |
| Countries that Start with P | 0 | - | 4.94 | 1,215,947 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,047,674 |
| Country Flags Quiz #2 | 0 | - | 4.98 | 1,092,861 |
| Countries that Start with N | 0 | - | 4.93 | 1,117,535 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,243,873 |
| Countries that Start with L | 0 | - | 4.98 | 1,090,570 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 907,072 |
| Random Country to Capital | 0 | - | 4.98 | 920,319 |
| Countries that Start with T | 0 | - | 4.90 | 1,009,717 |
| Biggest Cities in the United States | 0 | - | 4.94 | 978,201 |
| Asia Map Quiz | 0 | - | 4.99 | 916,653 |
| Countries that Start with U | 0 | - | 4.97 | 904,405 |
| Countries of Oceania | 0 | - | 5.00 | 1,053,729 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,023,050 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 733,396 |
| Counties of England | 0 | - | 4.97 | 796,621 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 640,315 |
| Oceania Map Quiz | 0 | - | 4.98 | 642,212 |
| Top World Languages | 0 | - | 4.92 | 822,023 |
| Countries of South America | 0 | - | 5.00 | 924,863 |
| Africa Capitals Quiz | 0 | - | 4.99 | 737,548 |
| Asia Capitals Quiz | 0 | - | 4.98 | 692,748 |
| Countries that Start with K | 0 | - | 4.97 | 815,663 |
| UK Cities Map Quiz | 0 | - | 4.96 | 464,527 |
| US States with an Empty Map | 0 | - | 5.00 | 624,490 |
| Countries that Start with V | 0 | - | 4.98 | 609,289 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 506,512 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 413,020 |
| Flags of Asia Quiz | 0 | - | 4.99 | 613,405 |
| Countries that Start with D | 0 | - | 4.96 | 709,419 |
| Countries That Border Russia | 0 | - | 4.98 | 461,708 |
| One Border Countries | 0 | - | 4.98 | 468,536 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 416,715 |
| South America Capitals Quiz | 0 | - | 5.00 | 481,333 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 406,141 |
| Countries with Four Letters | 0 | - | 4.99 | 422,351 |
| Countries with the Most Borders | 0 | - | 4.97 | 388,411 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 450,758 |
| Countries Bordering France | 0 | - | 4.83 | 402,514 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 380,275 |
| Northernmost Countries | 0 | - | 4.99 | 361,150 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 364,431 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 375,000 |
| Countries Bordering Germany | 0 | - | 4.99 | 369,376 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 367,013 |
| Counties of England Map Quiz | 0 | - | 4.97 | 307,618 |
| Landlocked Countries | 0 | - | 4.99 | 420,312 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 428,157 |
| World Map without 12 Countries | 0 | - | 4.97 | 344,388 |
| Australia Map Quiz | 0 | - | 4.95 | 344,591 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 366,110 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 417,555 |
| Majority Muslim Countries | 0 | - | 4.98 | 374,211 |
| Countries that Start with H | 0 | - | 4.96 | 604,621 |
| Countries that Start with J | 0 | - | 4.98 | 602,310 |
| World Capitals by Proximity | 0 | - | 4.91 | 331,355 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 335,389 |
| "Land" Countries | 0 | - | 4.98 | 336,146 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 300,858 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.52 | 290,672 |
| Canada Provinces and Territories | 0 | - | 5.00 | 342,459 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 295,905 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 312,667 |
| Flags of Africa Quiz | 0 | - | 5.00 | 471,167 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 310,463 |
| Commonwealth of Nations Countries | 0 | - | 4.94 | 237,391 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 271,415 |
| Countries with Z | 0 | - | 4.98 | 290,619 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,904 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 267,767 |
| Flags of North and South America | 0 | - | 4.99 | 373,026 |
| EU Countries Quiz | 0 | - | 4.99 | 274,111 |
| Biggest Cities in Germany | 0 | - | 4.95 | 293,417 |
| Countries that Border China | 0 | - | 4.96 | 263,139 |
| French-Speaking Countries | 0 | - | 4.85 | 270,477 |
| Countries with Five Letters | 0 | - | 4.96 | 281,299 |
| United States Cities Map Quiz | 0 | - | 4.96 | 214,186 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 288,276 |
| Every Country Shape | 0 | - | 5.00 | 465,230 |
| Europe Capital to Country | 0 | - | 4.99 | 250,055 |
| Longest International Borders | 0 | - | 4.99 | 264,916 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 273,076 |
| Biggest Cities by Language | 0 | - | 4.96 | 246,374 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 330,144 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 243,390 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 236,945 |
| Megacities on a World Map | 0 | - | 4.98 | 254,468 |
| World Currency Quiz | 0 | - | 4.92 | 302,954 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,756 |
| NATO Countries | 0 | - | 4.98 | 280,298 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 245,889 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 212,224 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 225,505 |
| Places in their Native Language #1 | 0 | - | 4.85 | 241,892 |
| Official Cities in the UK | 0 | - | 4.89 | 283,674 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 215,002 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 207,949 |
| Countries Closest to Spain | 0 | - | 4.96 | 226,966 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 229,001 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 222,973 |
| Countries with Megacities | 0 | - | 4.99 | 263,226 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 230,351 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 232,861 |
| World Capitals by Map | 0 | - | 5.00 | 286,374 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 191,676 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 224,826 |
| World's Busiest Airports | 0 | - | 4.96 | 233,507 |
| Country Chain | 0 | - | 4.96 | 217,078 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 279,344 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 269,908 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 216,951 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 195,637 |
| Independence from Whom | 0 | - | 4.99 | 211,678 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 249,385 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 185,640 |
| Countries by Borders #1 | 0 | - | 5.00 | 194,464 |
| Countries with Six Letters | 0 | - | 4.94 | 212,810 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 173,734 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,204 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 208,545 |
| Flags of Oceania | 0 | - | 5.00 | 259,062 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 224,317 |
| Largest Countries with No Borders | 0 | - | 4.97 | 221,385 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 180,638 |
| Countries Closest to Canada | 0 | - | 4.91 | 198,333 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 214,759 |
| Countries in their Native Language | 0 | - | 4.99 | 198,436 |
| Countries Closest to Italy | 0 | - | 4.97 | 198,029 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 173,177 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,243 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,525 |
| Monarchies of the World | 0 | - | 4.94 | 168,644 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,977 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 192,307 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 191,599 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 168,202 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 227,082 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 177,697 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 190,862 |
| North America Capitals Quiz | 0 | - | 4.99 | 219,738 |
| Countries That End in Y | 0 | - | 4.91 | 185,720 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 199,379 |
| Olympic Host Countries | 0 | - | 4.98 | 200,714 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,736 |
| Regions of Countries #1 | 0 | - | 4.96 | 159,515 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 164,944 |
| Every European Country Shape | 0 | - | 4.96 | 201,577 |
| Countries of the Middle East | 0 | - | 4.96 | 201,147 |
| Countries by Official Language | 0 | - | 4.95 | 194,907 |
| Countries Closest to Australia | 0 | - | 4.99 | 166,940 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 200,384 |
| Southernmost Countries A-Z | 0 | - | 4.94 | 153,546 |
| Counties of Ireland | 0 | - | 4.92 | 195,234 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 180,910 |
| Countries Bordering India | 0 | - | 4.98 | 163,426 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 144,584 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,857 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,892 |
| Countries with the Most Forest | 0 | - | 4.87 | 147,546 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,840 |
| European Cities by Clue | 0 | - | 4.70 | 89,052 |
| Geography Analogies #1 | 0 | - | 4.69 | 95,184 |
| Islands by Country #2 | 0 | - | 4.80 | 77,419 |
