We'll reveal the answer at 10:00 BST, so get your guesses in!

Sam Drury
BBC Sport cricket writer at Old Trafford

For all the fear of rain, it’s warm and there is plenty of blue sky overhead at Old Trafford.

The forecast suggests it’ll stay dry all day, too. So England will have at least one day to try and force a result…

Image source, BBC Sport

Daniel Gidney, CEO of Lancashire County Cricket Club, has been speaking to BBC Radio 5 Live this morning:

"Ashes come around every now and again and the customers love it. We promise to deliver to those customers an amazing experience off the field.

"We leave it to Ben and the team to do it on the field!

"We've been doing Ashes tests for over 100 years here so we're very excited about it. You can feel the atmosphere, it gets very tense just half an hour before the first ball.

"I think Emirates Old Trafford has a very, very good pitch here. In 2005 I think Ricky Ponting scored a big 100 to get the draw.

"We always have a bit of weather in Manchester, but it kind of adds to the interest I suppose.

"And with Jimmy Anderson here as well, he's absolutely fantastic, an unbelievable athlete and in this Test attack, those five bowlers have more wickets going into a Test match than any.

"Ideally, we want to win the toss and have Jimmy bowling in these conditions this morning.

"Jim is an absolute legend of Lancashire and England. And Shane Warne 30 years ago bowled the ball of the century here, so Emirates Old Trafford has a load of Ashes history - and Jim is about to write his."

I'm not sure how we'll cope with England going any crazier, but it's a valid point.

With days four and five potentially wiped out by rain, and England needing to win at all costs, how is Ben Stokes going to play it?

If Australia bat first, you'd suspect that they will just settle in and try and bat for two days.

If England bat first, they will probably try and score 500 in one day.

We could be treated to some proper fun.

BBC Test Match Special

For those of you wanting to listen to TMS overseas (some restrictions), click here for the link for day one., external

If you're just joining us, here's a recap on today's quiz question.

We will reveal the answer at 10:00 BST.

Stuart Broad begins the Old Trafford Test needing two more wickets to reach 600. Jimmy Anderson has 688.

Their careers as Test bowlers have both been stories of striking improvement from difficult beginnings. After their first 20 Tests, Anderson had taken 62 wickets, average 39.2, and Broad 52 wickets at 40.2.

From their 21st Tests onwards, Anderson has taken 626 wickets at 24.9, and Broad 546 at 26.3.

Six other England bowlers have taken 250 or more Test wickets – Fred Trueman, Brian Statham, Derek Underwood, Bob Willis, Ian Botham and Graeme Swann.

For today's Ashes guesswork challenge, what was their collective combined average in (a) their first 20 Tests, and (b) the rest of their Test careers?

With James Anderson back in England's XI and on his home ground, why not take a look at his best Ashes wicket through his own eyes?

It's a beauty, too.

I had just finished my first year of Sixth Form during this series and this ball is one of the very few things I remember about it!

This is my main concern, Howard!

While we're on the subject of Andy Zaltzman, the man himself has written a BBC Sport column on why this series has been the most closely-fought Ashes in history (so far!).

He has been crunching the numbers (there are a lot of them) to show just how much this contest has lived up to its hype.

You can read all about it here.

It wouldn't be a day of English cricket without mentioning the weather, right?

Let's look at the positives: today and tomorrow are looking rather promising.

As for the rest of the week... well, Saturday is my wedding day, so let's not even talk about that right now.

To get in touch with your quiz answers (or anything else Ashes-related that may be on your mind), you can either tweet us using #bbccricket, text 81111 (UK only and texts will be charged at your standard network rate) or WhatsApp on 03301231826.

Get those guesses in!

Stuart Broad begins the Old Trafford Test needing two more wickets to reach 600. Jimmy Anderson has 688.

Their careers as Test bowlers have both been stories of striking improvement from difficult beginnings. After their first 20 Tests, Anderson had taken 62 wickets, average 39.2, and Broad 52 wickets at 40.2.

In previous eras, these numbers might have seen them discarded back to county cricket for the rest of eternity, if not longer.

From their 21st Tests onwards, Anderson has taken 626 wickets at 24.9, and Broad 546 at 26.3.

Six other England bowlers have taken 250 or more Test wickets – Fred Trueman, Brian Statham, Derek Underwood, Bob Willis, Ian Botham and Graeme Swann.

For today's Ashes guesswork challenge, what was their collective combined average in (a) their first 20 Tests, and (b) the rest of their Test careers?

Right, now it's time to get your brains working.

Get ready - the Daily ZaltzQuiz is coming up.

Here's an interesting question for you.

Are the Aussies humble?

Here's what some of the England squad had to say...

BBC Sounds

If you're looking for some early morning listening on the commute or the school run, or if you're counting down the hours until the Test starts, the Ashes Daily podcast has got you covered.

Elly Oldroyd, Jonathan Agnew, Steven Finn and Geoff Lemon have been busy previewing the Old Trafford Test.

You can listen, and find other episodes, here.