If you could know the answer to one mystery what would it be?

[Electrascoffee]

I think in my case it would be what happened to Madeleine McCann.

[Hopscotch68]

Yes I'd like to know that one too!

[yoghurtmaker]

When I was a child it was the Loch Ness monster 😆

These days I think it would be how did the universe start.

[WoahBodyforrrrm]

What happened to the flight then went missing a few years ago?

[GladAllOver]

Why are some men lovely but others absolute fucking bastards?

[GertrudeCB]

Jack the Ripper. I've read a fair few theories and more than one is plausible.

[Flyingpompom]

Madeleine McCann!

[Electrascoffee]

Which flight was that Woah?

[Aprilshowersinaugust]

Is Bigfoot real?

[MayhemandMadness01]

Shergar

[SingaSong12]

Seriously- Wcay happened to the Malaysian Airways flight

Frivolous- single socks I'm so careful sticking them in the laundry, live alone - does the washing machine eat them?

[SerendipityFelix]

Is there life on other planets? What is it like?

[madeyemoodysmum]

Aliens
J f k
Madeleine
Ghosts

[DavedeeDozyBeakyMickandTich]

What happened to Andrew Gosden.

[TokyoSushi]

Same as others, Madeline McCann & the Malaysia Airlines flight

[berylmeryl]

The Sodder children
Rebecca Coriam
The Tunguska event

[Hopscotch68]

Also, Corrie mckeague

[GladAllOver]

Actually I do know the answer.

It's 42.

[Electrascoffee]

What's 42?

[NonJeNeRegretteRien]

@GladAllOver

[Hopscotch68]

42?

[Electrack]

What’s at the edge of space

[kettleonplease]

Did George Mallory make it to the summit of Everest...

[GladAllOver]

What's 42?

HHGG

[GladAllOver]

In The Hitchhiker's Guide to the Galaxy (published in 1979), the characters visit the legendary planet Magrathea, home to the now-collapsed planet-building industry, and meet Slartibartfast, a planetary coastline designer who was responsible for the fjords of Norway. Through archival recordings, he relates the story of a race of hyper-intelligent pan-dimensional beings who built a computer named Deep Thought to calculate the Answer to the Ultimate Question of Life, the Universe, and Everything. When the answer was revealed to be 42, Deep Thought explained that the answer was incomprehensible because the beings didn't know what they were asking. It went on to predict that another computer, more powerful than itself would be made and designed by it to calculate the question for the answer. (Later on, referencing this, Adams would create the 42 Puzzle, a puzzle which could be approached in multiple ways, all yielding the answer 42.)