| Taken | Updated | Quiz |
|---|
| 184,778 | 2019-12-13 | Countries with the Longest Total Borders |
| 98,113 | 2019-04-03 | 10 Biggest European Countries by Area |
| 91,247 | 2019-04-18 | Top 10 European Countries by Coastline |
| 70,680 | 2018-11-01 | 10 Biggest American Countries by Area |
| 68,582 | 2018-11-23 | 10 Biggest Asian Countries by Area |
| 68,477 | 2018-09-20 | Countries with Multiple Big Islands |
| 60,814 | 2019-04-18 | Top 10 Asian Countries by Coastline |
| 51,298 | 2019-04-19 | Top 10 American Countries by Coastline |
| 35,998 | 2019-04-18 | Top 10 African Countries by Coastline |
| 4,335 | 2019-07-14 | Men's Tennis - Singles: Top Wimbledon Winners (Open Era) |
| 1,662 | 2020-10-12 | Men's tennis (singles) - Most wins (Open Era) |
| 1,370 | 2020-10-11 | Men's tennis: Top Roland Garros Winners (Open Era) |
| 1,335 | 2017-01-28 | Women's tennis: Top Grand Slam Winners (Open Era) |
| 1,169 | 2016-07-09 | Women's tennis: Top Wimbledon Winners (Open Era) |
| 1,043 | 2018-10-06 | 100 Biggest Islands of the Earth |
| 1,042 | 2018-01-14 | Third World countries (in terms of human development-HDI index) |
| 933 | 2020-02-02 | Men's tennis: Top Australian Open Winners (Open Era) |
| 918 | 2020-10-11 | Men's tennis: Top Grand Slam Winners (Open Era) |
| 876 | 2020-11-30 | Men's tennis: Most weeks at No1 |
| 783 | 2019-09-09 | Men's tennis: Top US Open Winners (Open Era) |
| 776 | 2019-01-28 | Women's tennis - Most weeks at No1 |
| 770 | 2016-01-12 | United States of America with the longest international borders |
| 619 | 2020-10-24 | Countries with Population over 100 million |
| 550 | 2015-06-06 | Women's tennis: Top Roland Garros Winners (Open Era) |
| 487 | 2018-05-23 | Women's tennis: Top Australian Open Winners (Open Era) |
| 464 | 2019-10-18 | Most Populated Island Countries |
| 457 | 2016-07-11 | Women's tennis: Top US Open Winners (Open Era) |
| 407 | 2016-04-22 | Four-word countries |
| 373 | 2016-01-23 | Borders from South Africa to Norway |
| 308 | 2016-06-23 | Countries Bordering Guatemala |
| 297 | 2019-01-27 | Balkan Countries by Area |
| 284 | 2016-04-19 | Rivers by number of countries they pass through... |
| 263 | 2013-03-06 | Tolkien - Silmarillion - The 7 sons of Feanor |
| 246 | 2016-04-25 | Former USSR States not bordering Russia |
| 243 | 2016-04-21 | Three-word Countries |
| 218 | 2020-09-06 | Lord Of The Rings - Kings of Rohan |
| 215 | 2016-04-21 | Countries by percentage of the total area of their continent |
| 209 | 2018-06-27 | Borders from Senegal to Papua New Guinea |
| 171 | 2016-01-12 | United States of America with the longest coastlines |
| 158 | 2019-10-09 | Countries with B and Z |
| 158 | 2017-02-20 | Countries Bordering Germany by Population |
| 154 | 2016-01-23 | Countries by number of sizeable islands (over 1000 km2) |
| 148 | 2016-01-19 | Most Populous Mediterranean Islands |
| 129 | 2016-04-22 | 20 Largest Countries with continental land borders |
| 127 | 2017-04-05 | J.R.R. Tolkien - The Three Rings' Bearers |
| 126 | 2016-07-16 | Countries Bordering Republic of the Congo |
| 116 | 2016-04-24 | Countries bordering neighbours of China |
| 116 | 2016-07-10 | Euro 2016 Scorers |
| 114 | 2017-10-01 | 40 Largest Asian Islands |
| 113 | 2016-05-06 | Countries Bigger than 1 Million Square Km |
| 113 | 2016-01-23 | 10 Most Populous Provinces of China |
| 100 | 2019-10-09 | Countries with W and E |
| 95 | 2019-10-09 | Countries with W and I |
| 94 | 2016-04-26 | European Union Landlocked Countries |
| 93 | 2017-02-20 | Countries Bordering Germany by Area |
| 92 | 2015-12-27 | Himalayas' Highest Peaks |
| 89 | 2019-01-27 | North Hemisphere Countries |
| 89 | 2016-04-22 | Middle East Countries by Area |
| 88 | 2020-11-24 | Men's Tennis - Singles: Top 10 Ranking |
| 77 | 2016-04-26 | Top 10 Oceanian Coastlines |
| 76 | 2016-01-11 | World's Biggest Lakes by Volume |
| 76 | 2020-04-30 | 50 Largest Countries In Order - No Initials |
| 75 | 2016-05-06 | Countries Bigger than 1 Million Square Miles |
| 72 | 2016-01-12 | Most Populated Islands of the Americas |
| 67 | 2020-03-02 | Women's Tennis - Singles: Top 10 Ranking |
| 66 | 2020-01-13 | Women's Tennis: Most Singles Titles (Open Era) |
| 66 | 2020-10-11 | Men's Tennis: Most Singles Titles (Open Era) |
| 66 | 2016-01-12 | Most Populated Asian Islands |
| 63 | 2013-02-27 | Lord of the rings (Appendix A) - Kings and Queens of Numenor |
| 59 | 2016-01-11 | Most Populated African Islands |
| 56 | 2016-06-28 | Countries with 6-digit Population |
| 55 | 2019-11-04 | Men's Tennis (Singles) - Top Masters Series winners |
| 55 | 2016-01-21 | Countries with the Lowest Low Points |
| 52 | 2020-06-19 | World Capitals With Multiple A's |
| 51 | 2016-04-20 | Three-word Capitals |
| 50 | 2020-03-02 | Women's Tennis - Singles: Most Wins (Open Era) |
| 48 | 2016-04-18 | Largest Oceanian Islands |
| 47 | 2016-01-23 | South Hemisphere Countries |
| 46 | 2018-04-18 | Top 10 Countries With A Land Border By Coastline / Area Ratio |
| 45 | 2016-01-21 | Greek Islands - Largest Islands of the Cyclades |
| 45 | 2019-08-30 | Former Soviet Countries And Capitals |
| 45 | 2016-04-19 | Most Populated Oceanian Islands |
| 44 | 2020-04-30 | 50 Most Populous Countries In Order - No Initials |
| 43 | 2019-02-17 | Countries "Met" More Than Once Along The Afro-Eurasian Coast |
| 41 | 2016-01-12 | Largest Islands of the Americas |
| 41 | 2016-01-22 | Countries along the American coast |
| 36 | 2020-05-17 | Capitals With The Most Letters |
| 34 | 2016-01-23 | 10 Most Populous States of India |
| 33 | 2020-01-25 | Presidential Primary Elections: States With Caucuses |
| 31 | 2016-07-07 | Euro 2016 Top Scorers |
| 29 | 2019-02-17 | Countries That Appear Only Once Along the American Coast |
| 29 | 2020-06-14 | "-Stan" Countries by Population |
| 24 | 2020-05-17 | Prime Meridian Countries by Population |
| 22 | 2020-06-14 | "-Stan" Countries by Area |
| 17 | 2020-06-17 | Flags With Letters |
| 16 | 2020-06-16 | Greater Sunda Islands |
| 16 | 2020-05-17 | Countries Bordering Both Brazil and Argentina |
| 15 | 2020-05-17 | Prime Meridian Countries by Area |
| 15 | 2020-05-16 | Tropic of Capricorn Countries by Area |
| 14 | 2016-01-24 | Umberto Eco's 7 Novels |
| 14 | 2020-05-31 | Multiple Ocean American Countries |
| 13 | 2020-05-16 | Tropic of Cancer Countries by Population |
| 13 | 2020-05-16 | Tropic of Capricorn Countries by Population |
| 9 | 2020-05-16 | Tropic of Cancer Countries by Area |
| 9 | 2020-05-31 | Top 10 Highest Volcanoes of the Earth |
| 7 | 2020-06-16 | Lesser Sunda Islands |
| 6 | 2019-10-03 | Lord of the Rings - The Beacons of Gondor |
| 5 | 2020-05-03 | 10 Largest Lake Islands |
