There were six Tests in England this summer but not a single Test debutant - how often has this happened? asked Dominic Wood from Turkey
That's a good spot, because actually this is the first English summer ever that has had Test cricket but no new caps at all. There have been two previous Test summers with no debutants for England - 1953 and 2011 - but both of those featured new players from the visiting teams. In 1953, Australia blooded Alan Davidson and legspinner Jack Hill in the first Test, at Trent Bridge, and batsman Jim de Courcy in the third, at Old Trafford. In 2011, Sri Lanka introduced Thisara Perera in the first Test of the season, in Cardiff, and Lahiru Thirimanne in the third, in Southampton.
What's the lowest fourth-innings total by a team that won a Test with nine wickets down? asked Narasimhan Vuruputoor from India
There have now been 14 Tests that ended in one-wicket victories for the side batting last. The lowest total involved, by quite a distance, is 104 for 9 - by New Zealand against West Indies in Dunedin in 1979-80. Next is England's 173 for 9 against South Africa in Cape Town in 1922-23.
The highest such score came in a match fresh in the memory - England's Ben Stokes-inspired 362 for 9 to beat Australia at Headingley last August.
I noticed that Everton Weekes reached double figures in his first 14 Test innings, and when I checked Frank Worrell he did too (sadly, Clyde Walcott didn't). But is 14 the Test record? asked Samuel Harris from Barbados
You're right about the Three Ws: Everton Weekes reached double figures in his first 14 Test innings (going on to hundreds in five of them) before falling for 1 in his 15th, against England at Old Trafford in 1950, while Frank Worrell also had 14 before he fell for 6 in Adelaide in 1951-52. Clyde Walcott, however, was out for 8 in his first Test innings, against England in Bridgetown in 1947-48.
Two players, both openers, started their Test careers by reaching double figures in 15 successive innings - Sid Barnes of Australia, and England's Geoff Pullar. But the leader on this particular list, with 16 double-figure scores from debut, is another Australia opener, Colin McDonald: he won his first cap in 1951-52, and did not have a single-figure score until he finished with 7 not out as Australia beat West Indies in Kingston in 1954-55. McDonald was not actually dismissed in single figures until his 24th innings, when Tony Lock removed him for 1 in the opening match of the 1956 Ashes series, at Trent Bridge.
The England opener Brian Bolus, who died earlier this year, holds the record for a whole career with no single-figure scores: he had 12 innings in his seven Tests, with a lowest of 14.
Does Sanath Jayasuriya still hold the record for most runs in ODIs at a single ground? asked Neville de Alwis from Sri Lanka
Sanath Jayasuriya scored 2514 runs in one-day internationals at the Premadasa Stadium in Colombo, which remained a record for a single ground from 2009 until January 2018, when Tamim Iqbal passed it: he now has 2619 runs at the Shere Bangla National Stadium in Mirpur.
Seven other batsmen have made 2000 runs on a single ground in ODIs. Shakib Al Hasan and Mushfiqur Rahim so far have 2472 and 2351 respectively at Mirpur, while Inzamam-ul-Haq and Saeed Anwar scored 2464 and 2179 in Sharjah. Kumar Sangakkara amassed 2156 runs at the Premadasa, Ricky Ponting 2108 at Melbourne, and Brendan Taylor so far has 2067 at the Harare Sports Club. Here's the list of most runs at a venue by a player.
Don Bradman figured in 11 Test series - did he score centuries in every one of them? asked Joel Pojas from the Philippines
I've included this one as it's the birth anniversary of Don Bradman in a couple of days' time. Test cricket's greatest batsman did feature in 11 Test series in all - eight against England - and made a century in every one of them, as this list shows. In nine of his series, the Don scored two or more hundreds - the only ones in which he managed just one apiece were the Ashes of 1928-29 (his first series, aged 21), and the Bodyline tour of 1932-33, when he missed one of the matches.