| Island Countries | 0 | - | 4.99 | 712,710 |
| Countries by Three Words #1 | 0 | - | 4.95 | 266,700 |
| European Countries by Clue | 0 | - | 4.92 | 184,195 |
| Countries by Military Spending | 0 | - | 4.93 | 179,051 |
| Countries by Three Words #2 | 0 | - | 4.97 | 204,837 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,909,985 |
| US States Quiz | 0 | - | 5.00 | 17,003,879 |
| Countries by First Two Letters in 90 Seconds | 0 | - | 4.98 | 5,655,227 |
| United States Map Quiz | 0 | - | 4.98 | 4,172,060 |
| World Capitals Quiz | 0 | - | 5.00 | 5,108,701 |
| Europe Map Quiz | 0 | - | 5.00 | 4,789,630 |
| Countries by Borders in 90 Seconds | 0 | - | 4.99 | 3,850,244 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,394,899 |
| Country Flags Quiz #1 | 0 | - | 4.98 | 2,546,535 |
| Random Capital to Country | 0 | - | 4.99 | 2,602,371 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,807,003 |
| Africa Map Quiz | 0 | - | 5.00 | 2,129,338 |
| All Country Flags of the World | 0 | - | 5.00 | 3,717,263 |
| Word Scramble - Countries | 0 | - | 4.88 | 2,126,085 |
| Countries that Start with B | 0 | - | 4.95 | 2,307,246 |
| Countries that Start with A | 0 | - | 4.98 | 2,176,545 |
| Countries of Africa | 0 | - | 5.00 | 2,561,501 |
| East Asia Map Quiz | 0 | - | 4.99 | 1,452,774 |
| U.S. State Capitals Quiz | 0 | - | 5.00 | 1,699,351 |
| South America Map Quiz | 0 | - | 5.00 | 1,557,081 |
| Countries that Start with C | 0 | - | 4.96 | 1,832,081 |
| Middle East Map Quiz | 0 | - | 4.99 | 1,387,504 |
| Countries that Start with S | 0 | - | 4.98 | 1,763,680 |
| Biggest Countries by Population | 0 | - | 5.00 | 1,454,766 |
| Europe Capitals Quiz | 0 | - | 5.00 | 1,600,421 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,890,589 |
| Countries that Start with G | 0 | - | 4.97 | 1,512,059 |
| Countries that Start with M | 0 | - | 4.97 | 1,388,681 |
| Countries that Start with E | 0 | - | 4.95 | 1,385,585 |
| Countries of Europe - One Minute Sprint | 0 | - | 4.94 | 1,336,204 |
| Central America and Caribbean Map Quiz | 0 | - | 4.90 | 905,125 |
| Countries that Start with I | 0 | - | 4.92 | 1,294,962 |
| Countries that Start with P | 0 | - | 4.94 | 1,222,428 |
| Biggest Countries by Area | 0 | - | 5.00 | 1,055,217 |
| Country Flags Quiz #2 | 0 | - | 4.99 | 1,097,514 |
| Countries that Start with N | 0 | - | 4.93 | 1,124,284 |
| Flags of Europe Quiz | 0 | - | 4.99 | 1,259,110 |
| Countries that Start with L | 0 | - | 4.98 | 1,097,213 |
| Country Shapes Quiz #1 | 0 | - | 4.93 | 909,892 |
| Random Country to Capital | 0 | - | 4.98 | 928,850 |
| Countries that Start with T | 0 | - | 4.90 | 1,015,209 |
| Biggest Cities in the United States | 0 | - | 4.94 | 987,670 |
| Asia Map Quiz | 0 | - | 4.99 | 925,639 |
| Countries that Start with U | 0 | - | 4.97 | 908,717 |
| Countries of Oceania | 0 | - | 5.00 | 1,064,196 |
| Countries of North America Quiz | 0 | - | 5.00 | 1,032,116 |
| Country Flags Quiz #3 | 0 | - | 4.97 | 736,661 |
| Counties of England | 0 | - | 4.97 | 803,318 |
| Canada Provinces Map Quiz | 0 | - | 4.99 | 644,802 |
| Oceania Map Quiz | 0 | - | 4.98 | 659,707 |
| Top World Languages | 0 | - | 4.92 | 830,315 |
| Countries of South America | 0 | - | 5.00 | 933,228 |
| Africa Capitals Quiz | 0 | - | 4.99 | 744,206 |
| Asia Capitals Quiz | 0 | - | 4.98 | 699,175 |
| Countries that Start with K | 0 | - | 4.97 | 821,080 |
| UK Cities Map Quiz | 0 | - | 4.96 | 466,559 |
| US States with an Empty Map | 0 | - | 5.00 | 628,984 |
| Countries that Start with V | 0 | - | 4.98 | 612,186 |
| Word Scramble - U.S. States | 0 | - | 4.95 | 510,383 |
| Countries with the Longest Coastlines | 0 | - | 4.80 | 414,208 |
| Flags of Asia Quiz | 0 | - | 4.99 | 620,837 |
| Countries that Start with D | 0 | - | 4.96 | 716,848 |
| Countries That Border Russia | 0 | - | 4.98 | 464,616 |
| One Border Countries | 0 | - | 4.98 | 472,152 |
| Country Shapes Quiz #2 | 0 | - | 4.97 | 418,625 |
| South America Capitals Quiz | 0 | - | 5.00 | 485,158 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 409,925 |
| Countries with Four Letters | 0 | - | 4.99 | 426,026 |
| Countries with the Most Borders | 0 | - | 4.97 | 390,741 |
| Top Five Countries By Category #1 | 0 | - | 4.99 | 453,749 |
| Countries Bordering France | 0 | - | 4.83 | 405,030 |
| Smallest Countries by Population and Area | 0 | - | 4.99 | 382,655 |
| Northernmost Countries | 0 | - | 4.99 | 364,211 |
| Europe Cities Map Quiz | 0 | - | 4.99 | 366,335 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 376,810 |
| Countries Bordering Germany | 0 | - | 4.99 | 371,963 |
| States of the U.S. in Alphabetical Order | 0 | - | 4.98 | 368,737 |
| Counties of England Map Quiz | 0 | - | 4.97 | 309,122 |
| Landlocked Countries | 0 | - | 4.99 | 426,355 |
| Europe by Borders in 30 Seconds | 0 | - | 4.98 | 431,048 |
| World Map without 12 Countries | 0 | - | 4.97 | 346,229 |
| Australia Map Quiz | 0 | - | 4.95 | 346,256 |
| Biggest Metro Areas in the USA | 0 | - | 4.98 | 368,188 |
| 100 Biggest Cities on a World Map | 0 | - | 4.99 | 420,812 |
| Majority Muslim Countries | 0 | - | 4.98 | 377,932 |
| Countries that Start with H | 0 | - | 4.96 | 609,884 |
| Countries that Start with J | 0 | - | 4.98 | 607,257 |
| World Capitals by Proximity | 0 | - | 4.91 | 334,055 |
| Countries with the Most Billionaires | 0 | - | 4.91 | 337,043 |
| "Land" Countries | 0 | - | 4.98 | 338,505 |
| Most Populous Countries A-Z | 0 | - | 4.98 | 302,049 |
| Countries with the Biggest Economies by GDP | 0 | - | 4.53 | 292,296 |
| Canada Provinces and Territories | 0 | - | 5.00 | 346,475 |
| Country Shapes Quiz #3 | 0 | - | 4.90 | 297,516 |
| Countries with the Longest Total Borders | 0 | - | 4.99 | 314,136 |
| Flags of Africa Quiz | 0 | - | 5.00 | 478,099 |
| Countries of Europe with an Empty Map | 0 | - | 5.00 | 312,898 |
| Commonwealth of Nations Countries | 0 | - | 4.95 | 238,449 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 275,070 |
| Countries with Z | 0 | - | 4.98 | 292,564 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 297,738 |
| Five Most Populated Countries by Continent | 0 | - | 4.99 | 269,318 |
| Flags of North and South America | 0 | - | 4.99 | 377,340 |
| EU Countries Quiz | 0 | - | 4.99 | 278,149 |
| Biggest Cities in Germany | 0 | - | 4.95 | 295,354 |
| Countries that Border China | 0 | - | 4.96 | 264,368 |
| French-Speaking Countries | 0 | - | 4.85 | 271,742 |
| Countries with Five Letters | 0 | - | 4.96 | 284,126 |
| United States Cities Map Quiz | 0 | - | 4.96 | 215,218 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 291,562 |
| Every Country Shape | 0 | - | 5.00 | 471,543 |
| Europe Capital to Country | 0 | - | 4.99 | 252,236 |
| Longest International Borders | 0 | - | 4.99 | 265,877 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 277,206 |
| Biggest Cities by Language | 0 | - | 4.96 | 247,729 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 335,822 |
| Countries of Africa with an Empty Map | 0 | - | 5.00 | 244,697 |
| Geographic Groups of Two #1 | 0 | - | 4.99 | 238,188 |
| Megacities on a World Map | 0 | - | 4.98 | 257,109 |
| World Currency Quiz | 0 | - | 4.92 | 307,014 |
| Southernmost Countries of the World | 0 | - | 4.99 | 229,349 |
| NATO Countries | 0 | - | 4.98 | 283,616 |
| Five Closest Countries by Country #1 | 0 | - | 5.00 | 246,620 |
| Mediterranean Countries Quiz | 0 | - | 4.99 | 214,067 |
| Country Shapes Quiz #4 | 0 | - | 4.94 | 226,894 |
| Places in their Native Language #1 | 0 | - | 4.85 | 243,442 |
| Official Cities in the UK | 0 | - | 4.89 | 286,464 |
| Summer Olympics Host Cities | 0 | - | 4.98 | 216,571 |
| Countries with the Highest Life Expectancy | 0 | - | 4.89 | 208,618 |
| Countries Closest to Spain | 0 | - | 4.96 | 228,192 |
| Axis Occupied Countries of WWII | 0 | - | 4.99 | 230,227 |
| Most Populous Countries in 2050 | 0 | - | 4.91 | 223,880 |
| Countries with Megacities | 0 | - | 4.99 | 267,366 |
| Countries of Asia with an Empty Map | 0 | - | 4.98 | 231,708 |
| Top 10 Most Populous European Countries | 0 | - | 4.97 | 234,677 |
| World Capitals by Map | 0 | - | 5.00 | 289,586 |
| Countries that Produce the Most Wine | 0 | - | 4.87 | 192,356 |
| First Five Countries Alphabetically by Continent | 0 | - | 4.94 | 226,038 |
| World's Busiest Airports | 0 | - | 4.96 | 237,528 |
| Country Chain | 0 | - | 4.96 | 218,520 |
| Countries by Borders in 90 Seconds with an Empty Map | 0 | - | 4.90 | 281,010 |
| Capitals of Oceania Quiz | 0 | - | 4.99 | 272,864 |
| Top 10 Biggest African Countries by Area | 0 | - | 4.99 | 218,851 |
| Northernmost Countries A-Z | 0 | - | 4.99 | 196,741 |
| Independence from Whom | 0 | - | 4.99 | 213,178 |
| Five Biggest Countries by Continent | 0 | - | 4.99 | 250,503 |
| Regions of Spain Map Quiz | 0 | - | 4.95 | 186,921 |
| Countries by Borders #1 | 0 | - | 5.00 | 195,064 |
| Countries with Six Letters | 0 | - | 4.94 | 214,596 |
| Most Populous Countries in 1900 | 0 | - | 4.91 | 174,284 |
| Five Closest Countries by Country #2 | 0 | - | 5.00 | 203,745 |
| Border Crossings Quiz #1 | 0 | - | 4.99 | 210,201 |
| Flags of Oceania | 0 | - | 5.00 | 262,946 |
| 15 Largest Cities in Europe With a Map | 0 | - | 4.98 | 225,866 |
| Largest Countries with No Borders | 0 | - | 4.96 | 222,418 |
| Countries with the Highest Maximum Elevation | 0 | - | 4.97 | 181,235 |
| Countries Closest to Canada | 0 | - | 4.91 | 199,529 |
| "Stan" Countries Quiz | 0 | - | 4.97 | 218,177 |
| Countries in their Native Language | 0 | - | 4.99 | 199,808 |
| Countries Closest to Italy | 0 | - | 4.97 | 199,448 |
| World Map without 12 Countries #2 | 0 | - | 4.98 | 174,757 |
| Least Populous Countries A-Z | 0 | - | 4.99 | 170,964 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 198,516 |
| Monarchies of the World | 0 | - | 4.94 | 170,325 |
| Countries with Letters Missing | 0 | - | 4.96 | 187,364 |
| Biggest Countries by Area A-Z | 0 | - | 4.96 | 194,035 |
| Top 10 Least Populous U.S. States | 0 | - | 4.94 | 192,693 |
| Biggest US Cities by Decade | 0 | - | 4.95 | 169,033 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 228,698 |
| Top 10 Smallest U.S. States by Area | 0 | - | 4.98 | 178,261 |
| Countries Closest to the United Kingdom A-Z | 0 | - | 4.96 | 192,053 |
| North America Capitals Quiz | 0 | - | 4.99 | 222,344 |
| Countries That End in Y | 0 | - | 4.91 | 186,106 |
| Top 10 Biggest Economies in Europe | 0 | - | 4.98 | 200,805 |
| Olympic Host Countries | 0 | - | 4.98 | 202,042 |
| Countries With the Most Languages | 0 | - | 4.90 | 203,692 |
| Regions of Countries #1 | 0 | - | 4.96 | 160,276 |
| Countries with the Highest Population Density | 0 | - | 4.95 | 165,713 |
| Every European Country Shape | 0 | - | 4.96 | 203,086 |
| Countries of the Middle East | 0 | - | 4.96 | 203,036 |
| Countries by Official Language | 0 | - | 4.95 | 196,083 |
| Countries Closest to Australia | 0 | - | 4.99 | 167,857 |
| Five Poorest Countries by Continent | 0 | - | 4.93 | 201,196 |
| Southernmost Countries A-Z | 0 | - | 4.95 | 154,152 |
| Counties of Ireland | 0 | - | 4.92 | 197,407 |
| Five Biggest Immigrant Groups by Country #1 | 0 | - | 4.97 | 181,799 |
| Countries Bordering India | 0 | - | 4.98 | 163,835 |
| Countries With the Most Islands of at Least 10 Km² | 0 | - | 4.88 | 145,336 |
| Countries with the Highest HDI | 0 | - | 4.95 | 137,167 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 164,330 |
| Countries with the Most Forest | 0 | - | 4.87 | 148,115 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 126,737 |
| European Cities by Clue | 0 | - | 4.70 | 89,182 |
| Geography Analogies #1 | 0 | - | 4.70 | 96,424 |
| Islands by Country #2 | 0 | - | 4.80 | 77,909 |
