Wednesday 26 October 2016 06:45, UK
How many times have Manchester United conceded in the first minute? How often do Arsenal and Tottenham draw 0-0 on the same day?
Martin Tyler has the answers - plus, hit the video to see his latest tricky teaser from Stamford Bridge.
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Martin's Starting Stats from Stamford Bridge
Chelsea are now unbeaten in their last 11 meetings against Manchester United, eight in the Premier League. That's their best sequence ever against United in league football.
Sunday's 409 success was their 50th win against United in all competition and United's 100th away defeat in the Premier League.
David de Gea still has no clean sheets at Stamford Bridge in seven appearances. He has conceded 15 goals. In contrast, Nemanja Matic is unbeaten in his career against Manchester United. He has faced them eight times - six times for Chelsea and twice for Benfica in 2011.
Gary Cahill is unbeaten in his last eight against Manchester United, having failed to win in his first 11. It was his second career goal against them - the first was in Chelsea's 5-4 League Cup home win four years ago.
Eden Hazard scored his fourth goal in 11 career appearances against United and N'Golo Kante scored his first Chelsea goal and only his second in the Premier League.
It was Jose Mourinho's heaviest defeat in English football in his second return to Stamford Bridge. His first was a 1-0 win for Inter in 2010.
Pedro marked his 50th Chelsea appearance with a goal in 30 seconds - and according to our research it was the second-quickest Premier League goal against Manchester United. The quickest was Gus Poyet at the same end in 1999 on a Sunday afternoon. Pedro's goal was scored at the Matthew Harding Stand, which was fitting on the day Chelsea marked the 20th anniversary of his tragic death.
That leads us on to our first question…
Gone in 60 seconds
How many times have Manchester United conceded in the first minute of a Premier League game? (Nick, Croydon)
MARTIN SAYS: Pedro's 30-second goal on Sunday was the sixth time United have conceded in the opening minute of a Premier League game.
Perhaps the most famous - or infamous depending on your preference - is former Man City striker Edin Dzeko's goal in the Manchester derby on March 25, 2014. He went on to add another in the 56th minute at Old Trafford, before Yaya Toure sealed the 3-0 away victory just before full time. I commentated on that game for Sky Sports.
As mentioned, Poyet was the first to net against United inside a minute in the Premier League, doing so during a 5-0 Chelsea victory in October 1999, and Jason Euell adding the second four and a half months later for Wimbledon as they played out a 2-2 draw at Selhurst Park.
Marlon Harewood's early strike in November 2005 for West Ham and Jermain Defoe's goal in September 2009 for Tottenham are the others to have beaten them inside a minute, with United going on to win both contests away from home.
Blanks for Arsenal and Spurs
How many times have Spurs and Arsenal both been held to goalless draws when playing on the same day in the Premier League? (Joanne, Croydon)
MARTIN SAYS: On Saturday, Tottenham were held to a 0-0 draw by Bournemouth while Arsenal were frustrated by new boys Middlesbrough.
Excluding the five occasions when they have drawn 0-0 with each other, this has only happened four times before in the Premier League, last occurring on April 2, 2011 with the Gunners being held at home by Blackburn while Spurs played out a 0-0 draw with Wigan at the DW Stadium.
But it had taken over 10 years to occur again after the January 20, 2001 goalless draws, with Tottenham the home side to be held by Southampton while Arsenal took a point from Leicester at Filbert Street.
If we take it back to the beginnings of the Premier League, the first time this happened was in the league's inaugural season, with Boxing Day 1992 seeing Arsenal playing out a goalless draw with Ipswich before Tottenham were held by Norwich at Carrow Road.
Points on the board
Arsene Wenger said at Arsenal's AGM on Monday that it will take around 82 to 86 to win the Premier League. Is he right historically? (Rob, Surrey)
MARTIN SAYS: Arsene Wenger is not far wrong with his estimation on that one, with six of 24 previous winners falling into that bracket and the remainder not far on either side.
Arsenal actually have one of the highest points tallies during their title win in the 2003/04 campaign (90), although the highest in Premier League history goes to Chelsea in the next season where they amassed a huge 95 points.
No team has surpassed the 90-point bracket since United's victory in the 2008/09 season, although Manchester City came close in the 2011/12 campaign with 89 points with their local rivals also hitting the same mark the season after.
The Gunners also feature towards the lower end of the spectrum - winning the 1997/98 trophy with 78 points - although Manchester United have the lowest as 75 was points enough to with the Premier League in the 1996/97 campaign.
The last seven seasons have seen tallies inside the 80s, with the current champions Leicester just edging past that mark to win the league with 81 points in May.
Only five sides have won the Premier League with fewer than 82 points - and three of those were before the turn of the century.
We are really enjoying the five-team battle at the top right now. There's one point separating the top five - and that suggests it is going to be tight.
Record for Iheanacho
Kelechi Iheanacho must have one of the best goals per minute rates in Premier League history? (Charlie, Cardiff)
MARTIN SAYS: The young Nigerian forward top has 11 goals in 33 top-flight games, giving him a 94 minutes-per-goal ratio.
Of players to have scored a minimum of 10 Premier League goals, that's the best rate in Premier League history.
Second on the list is fellow Manchester City striker Sergio Aguero, who has 107 goals in 157 Premier League appearances. That sees him score on average once every 108 minutes.
Other current Premier League players who feature in the top 10 are Chelsea's Diego Costa - who nets on average every 135 minutes - closely followed by Harry Kane, with a ratio of 137 minutes per goal.
Interestingly, the fourth highest minute-per-goal ratio in the league's history comes from Adam Le Fondre, who netted 12 goals in 34 Premier League appearances during Reading's 2012/13 season, meaning he scored on average once every 124 minutes in the top flight - bettering the likes of Luis Suarez (139) and Robin Van Persie (140).