Jharkhand won a one-day game by 324 runs the other day. Was this a record for a List A match? asked Midhun Menon from India
The match in question happened last week in India's Vijay Hazare Trophy: Jharkhand ran up 422 for 9 in Indore, then bowled Madhya Pradesh out for 98 to win by 324 runs. That equalled the second-highest margin of victory by runs in any List A (senior professional limited-overs) game, by Gloucestershire (401 for 7) against Buckinghamshire in Wing in 2003. The highest margin in any List A match also dates from the days when the Minor Counties took part in England's NatWest Trophy: Somerset (413 for 4) beat Devon (67) by 346 runs in Torquay in 1990.

Jharkhand's wicketkeeper (and captain) Ishan Kishan smashed 173 (with 11 sixes) in last week's game, then took seven catches, which happens surprisingly frequently in List A games; there have also been four lots of eight, most recently by Peter Nevill, for New South Wales against a Cricket Australia XI in the JLT One-Day Cup in Sydney in 2017-18.

There were no extras in India's total of 329 in the second Test. Was this a record? asked Mayank Mathur from India
India's first innings total of 329 against England in Chennai was indeed the highest in a Test without any extras - by just one run, from Pakistan's 328 against India in Lahore in 1954-55. There's then quite a gap to the third-highest, South Africa's 252 against England in Durban in 1930-31.

The record for one-day internationals came during India's 265 for 1 against Bangladesh at Edgbaston during the 2017 Champions Trophy; in T20Is, it's Canada's 159 for 7 against Nigeria in Abu Dhabi in October 2019.

The highest first-class innings with no extras at all was Victoria's 647 against Tasmania in Melbourne in 1951-52. That's over 150 more than the next entry on the list, MCC's 484 for 4 declared against North Eastern Transvaal in Benoni in 1948-49, an innings in which Denis Compton made a triple-century in 181 minutes.

Which batsman was most often dismissed lbw in Tests? asked Michael Kennedy from England
As you might expect, since he played the most Test innings of all (329), the man most often dismissed leg before wicket in Tests is Sachin Tendulkar, who fell that way on 63 occasions; Shivnarine Chanderpaul (55), Alastair Cook (54) and Graham Gooch (50) also chalked up a half-century of lbws.

Probably more interesting is to see which batsmen were out lbw in the highest percentage of their Test dismissals, given a reasonable qualification. If you look at those who were out more than 100 times, it's the Australian Shane Watson, with 29 out of 106, which is 27.3%. And, before you ask, it's too difficult to work out how many of those he reviewed!

If you lower the bar to 50 innings, the leader becomes the South African JP Duminy, who had 22 lbws among his 62 dismissals (34.3%).

Naman Ojha, who has just announced his retirement, represented India in all three international formats - but played only four matches in all. Is this a record? asked Urjayant Sangai from India
The Madhya Pradesh wicketkeeper Naman Ojha played one Test (against Sri Lanka in Colombo in 2015), one one-day international five years earlier, and two T20Is, also in June 2010.

There are four other men whose international careers stretch over all three formats, but involve only four matches. All are still active players: Minod Bhanuka Ranasinghe made his Test debut for Sri Lanka last month, and has also played two T20s and an ODI, while Zimbabwe's Charlton Tshuma appeared in all three formats last year. They may well play again and escape from this list.

It seems unlikely, however, that the other two will add to their tally of international caps, even though they are still playing domestic cricket. Scott Borthwick won his only Test cap for England early in 2014, having earlier played two ODIs and a T20I. And the Railways legspinner Karn Sharma played one Test, two ODIs and a T20 for India, all in 2014.

Nkrumah Bonner and Kyle Mayers added 216 as West Indies beat Bangladesh earlier this month - was this a Test record for two debutants? asked Lionel Clarke from Barbados
That stand of 216 in the chase in Chattogram, which helped set up West Indies' astonishing victory in the first Test, was actually the second-highest in any Test by a pair of debutants. The list is headed by Khalid Ibadulla and Abdul Kadir (a wicketkeeper, not the later legspinner), who put on 249 for Pakistan's first wicket against Australia in Karachi in 1964-65. There have been only 13 century partnerships between two debutants in all Test matches, as the list shows.

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Steven Lynch is the editor of the updated edition of Wisden on the Ashes