Has anyone got to their second double-century faster than Mayank Agarwal?
And is Deepak Chahar's 6 for 7 the best bowling performance in any T20 match?
The short answer is yes: four identical scores by a team's openers, as Shadman Islam and Imrul Kayes managed against India in Indore last week, does appear to be unique in Tests.
As you may have guessed, the record was established by India in the recent match against Bangladesh in Indore. That was the fourth successive Test in which one of their batsmen had reached 200: Mayank Agarwal's 243 followed the series against South Africa, in which Rohit Sharma made 212 in Ranchi, Virat Kohli an unbeaten 254 in Pune, and Agarwal himself 215 in Visakhapatnam.
This maddening fate has befallen three batsmen. The first was Australia's Arthur Chipperfield, against England at Trent Bridge in 1934. He went to lunch on the second day with 99, but was out to the third ball after the interval.
Actually this is one scoring table in which Don Bradman wasn't on top - his second double-century (334 against England at Headingley in 1930) came in his 13th Test innings, so Mayank Agarwal beats the Don by one. But another Indian remains ahead: Vinod Kambli, who had not long turned 21, scored 224 in his fourth Test innings, against England in Mumbai in 1992-93, and 227 in his next one, against Zimbabwe in Delhi a few weeks later. Kambli made two more centuries later in the year against Sri Lanka. After seven matches (and eight innings), he had 793 runs at an average of 113.28 - but never managed another Test ton, and his career fizzled out after only ten more matches, although that electric start ensured he finished with an average of 54.20.
Deepak Chahar's remarkable figures of 6 for 7 against Bangladesh in Nagpur recently were the best in T20Is, just beating Ajantha Mendis' 6 for 8 for Sri Lanka against Zimbabwe in Hambantota in September 2012. Mendis also took 6 for 16 against Australia in Pallekele in August 2011; the only other man to take six in a T20I is the Indian legspinner Yuzvendra Chahal, with 6 for 25 against England in Bengaluru in February 2017.
Steven Lynch is the editor of the updated edition of Wisden on the Ashes