Most innings before first duck in first-class career

114 Abdul Azeem from 1980 to 1994 *
105 JG Langridge from 1928 to 1933
104 MS Wade from 2007 to 2013
100 AR Morris from 1940 to 1949
94 LC Sebastien from 1972 to 1981
89 ML Hayden from 1991 to 1994
84 SJ McCabe from 1928 to 1932
81 Ali Azmat from 2004 to 2012 **
79 JP Causby from 1961 to 1971
79 RT Ponting from 1992 to 1996
* His full career
** His full career to date

Youngest to score a County Championship double-century

18 yrs, 237 days: DJG Sales (210*) Northamptonshire v Worcestershire at Kidderminster, 1996
19 yrs, 207 days: JWA Taylor (207*) Leicestershire v Surrey at The Oval, 2009
19 yrs, 250 days: D Nicholls (211) Kent v Derbyshire at Folkestone, 1963
19 yrs, 308 days: RA Young (220) Sussex v Essex at Leyton, 1905
20 yrs, 46 days: GA Hick (227*) Worcestershire v Nottinghamshire at Worcester, 1986
20 yrs, 55 days: GA Hick (219*) Worcestershire v Glamorgan at Neath, 1986
20 yrs, 77 days: A Symonds (254*) Gloucestershire v Glamorgan at Abergavenny, 1995
20 yrs, 95 days: AZ Lees (275*) Yorkshire v Derbyshire at Chesterfield, 2013
20 yrs, 144 days: JWA Taylor (206*) Leicestershire v Middlesex at Leicester, 2010
20 yrs, 152 days: JW Hearne (234*) Middlesex v Somerset at Lord's, 1911
The previous youngest for Yorkshire was:
20 yrs, 224 days: RJ Blakey (204*) Yorkshire v Gloucestershire at Leeds, 1987
The youngest in all first-class cricket is:
15 yrs, 215 days: Hasan Raza (204*) Karachi Whites v Bahawalpur at Karachi, 1997/98

Ricky Ponting's first-class career

Test: 13378 runs at 51.85 in 168 matches, 41 x 100, 62 x 50
Sheffield Shield: 6377 runs at 63.13 in 65 matches, 26 x 100, 21 x 50
County Championship: 790 runs at 112.85 in 7 matches, 4 x 100, 2 x 50
Other First-class: 3605 runs at 54.62 in 49 matches, 11 x 100, 21 x 50
Total First-class: 24150 runs at 55.90 in 289 matches, 82 x 100, 106 x 50

Highest Sheffield Shield batting averages (Min 5000 runs)
DG Bradman 8926 at 110.19
WH Ponsford 5413 at 83.27
AF Kippax 6096 at 70.88
AL Hassett 5535 at 63.62
RT Ponting 6377 at 63.13
MG Bevan 10621 at 60.69
RB Simpson 6471 at 57.77
GS Chappell 8762 at 57.26
PJP Burge 7084 at 56.22
SM Katich 8807 at 55.38

Highest County Championship batting averages (Min 500 runs)
RT Ponting 790 at 112.85
HM Amla 787 at 87.44
SR Watson 676 at 84.5
SR Waugh 1850 at 77.08
MEK Hussey 6647 at 73.85
SJ Cook 6975 at 69.75
DS Lehmann 8871 at 68.76
GB Hogg 662 at 66.2
DJ Hussey 5628 at 64.68
CL White 2364 at 63.89
(8 Australians and 2 South Africans)

Highest averages for batsmen with 20 000 first-class runs

DG Bradman 28067 at 95.14
SR Tendulkar 25228 at 57.86
DS Lehmann 25795 at 57.83
G Boycott 48426 at 56.83
KS Ranjitsinhji 24692 at 56.37
RB Simpson 21029 at 56.22
WR Hammond 50551 at 56.10
S Chanderpaul 22518 at 56.01
RT Ponting 24150 at 55.90
L Hutton 40140 at 55.51

Highest scores in last first-class innings

241* AH Bakewell for Northamptonshire v Derbyshire at Chesterfield, 1936
220 NF Mitchell for Victoria v Tasmania at Melbourne, 1926/27
217 RC Fredericks for Guyana v Jamaica at Georgetown, 1982/83
207 NF Callaway for New South Wales v Queensland at Sydney, 1914/15
207 IJ Siedle for Natal v Western Province at Durban, 1936/37
206 PA de Silva for Sri Lanka v Bangladesh at Colombo, 2002
200* AC MacLaren for Marylebone Cricket Club v New Zealand at Wellington, 1922/23
200* Moin Khan for Karachi Harbour v Hyderabad at Hyderabad, 2005/06
193 A Burrows for Railways v Vidarbha at Yavatmal, 1985/86
189 DA King for Oxford University v Cambridge University at Oxford, 2010
185* AS Sharma for Oxford University v Cambridge University at Oxford, 2010
184 DR Fox for Oxford University v Cambridge University at Cambridge, 2005
172 Azmat Rana for Muslim Commercial Bank v State Bank of Pakistan at Lahore, 1983/84
171 HP Tillakaratne for Nondescripts Cricket Club v Badureliya Sports Club at Colombo, 2005/06
170* RA Jones for Auckland v Canterbury at Auckland, 2009/10
169* RT Ponting for Surrey v Nottinghamshire at The Oval, 2013
169 JS Solomon for Guyana v Barbados at Georgetown, 1968/69
169 JSD Moffat for Cambridge University v Oxford University at Oxford, 2002

The only Australians higher than Ponting are Mitchell and Callaway

Callaway, Sharma and Moffat only played one innings

Most Tests missed between 1st and 2nd matches

96 HL Jackson (Eng) from 1949 to 1961 *
79 KV Andrew (Eng) from 1954 to 1963 *
78 GB Hogg (Aus) from 1996 to 2003
78 RJ Sidebottom (Eng) from 2001 to 2007
69 HMCM Bandara (SL) from 1998 to 2005
65 RW Taylor (Eng) from 1971 to 1977
62 DE Bernard (WI) from 2003 to 2009
62 CJL Rogers (Aus) from 2008 to 2013
58 MW Priest (NZ) from 1990 to 1998
55 RL Powell (WI) from 1999 to 2004 *
51 CB Lambert (WI) from 1991 to 1998
* indicates it was the player's only 2 Tests

Highest percentage runs in boundaries in a Test innings

77.74% (54x4, 3x6) out of 301 by West Indies v South Africa at Centurion, 2003/04
72.51% (40x4, 5x6) out of 262 by Bangladesh v New Zealand at Chittagong, 2004/05
72.03% (38x4, 0x6) out of 211-3 by England v New Zealand at Birmingham, 1999
71.83% (41x4, 2x6) out of 245 by Pakistan v India at Rawalpindi, 2003/04
71.64% (33x4, 2x6) out of 201 by England v Australia at Manchester, 1961
71.49% (28x4, 6x6) out of 207 by Zimbabwe v New Zealand at Bulawayo, 2005/06
70.92% (41x4, 6x6) out of 282 by Bangladesh v New Zealand at Hamilton, 2009/10
70.69% (38x4, 0x6) out of 215 by England v Australia at Nottingham, 2013
70.58% (48x4, 8x6) out of 340-3* by South Africa v Zimbabwe at Cape Town, 2004/05
70.48% (57x4, 3x6) out of 349 by South Africa v New Zealand at Auckland, 2003/04
Minimum total 200

Youngest to take 5 in an innings on debut.

Here is a list of players that I can find who took a five-for on first-class debut before the age of 16:

13 yrs, 44 days: Mushtaq Mohammad 5-28 for Karachi Whites v Sind at Hyderabad, 1956/57
13 yrs, 287 days: Zulfiqar Butt 5-110 for Lahore City Whites v Karachi Blues at Sahiwal, 1984/85
15 yrs, 46 days: Majid Khan 6-67 for Lahore B v Khairpur at Lahore, 1961/62
15 yrs, 98 days: Iqbal Butt 5-68 for Railways B v Lahore B at Lahore, 1971/72
15 yrs, 119 days: Nadeem Ghauri 5-91 for Servis Industries v Rawalpindi at Rawalpindi, 1977/78
15 yrs, 261 days: DT Doram 5-82 for Netherlands v Ireland at Deventer, 2013
15 yrs, 315 days: Adil Raza 5-42 for Sui Northern Gas Pipelines Limited v Pakistan International Airlines at Rawalpindi, 2007/08
15 yrs, 323 days: Masood-ul-Hasan 6-60 for Karachi Greens v Karachi Whites at Karachi, 1961/62

Big collapses

Here are instances that I can find of teams losing 8 wickets for fewer than 40 runs
with the collapse beginning at a total over 300 in first-class cricket

16: 304-2 to 320-10 Somerset v Australians at Taunton, 2013
22: 419-2 to 441-10 Middlesex v Gloucestershire at Bristol, 1995
26: 311-2 to 337-10 Gloucestershire v Hampshire at Southampton, 1979
31: 304-2 to 335-10 Kent v Yorkshire at Canterbury, 1886
31: 310-2 to 341-10 Warwickshire v Glamorgan at Cardiff, 1999
36: 311-2 to 347-10 Lancashire v Yorkshire at Manchester, 1912

Highest percentage of all out ODI total contributed by 2 batsmen

85.88% (146 out of 170) Pakistan v West Indies at The Oval, 2013
Misbah-ul-Haq (96*) and Nasir Jamshed (50)
85.36% (175 out of 205) India v Australia at The Oval, 1999
AD Jadeja (100) and RR Singh (75)
82.91% (199 out of 240) England v Pakistan at Lord's, 2001
ME Trescothick (137) and OA Shah (62)
82.00% (196 out of 239) Zimbabwe v New Zealand at Hyderabad, 1987/88
DL Houghton (142) and IP Butchart (54)
77.16% (125 out of 162) Pakistan v Australia at Melbourne, 1989/90
Wasim Akram (86) and Salim Malik (39)

The Test record is:
85.13% (126 out of 148) South Africa v West Indies at Bridgetown, 1991/92
KC Wessels (74) and PN Kirsten (52)