Anyone help with me coming up with a riddle?

[CrapTVAddict]

Can anyone come up with a riddle where the answer is a knot?
I've tried but I'm finding it hard or if I make it easy it's too obvious.

I’m made of string, and yet I am not.

What am I?

I am easy for some
Hard for most
We meet in the middle
We Cross over together
I end with a pull.

What am I.

Is this the sort of thing you're after, if yes will try and think of a better one

These are perfect thank you so much.

Bit cheeky but need one for Lane if possible,

I can tell you a joke?
A piece of string went into a pub and asked for a pint of beer. The barman said, 'Sorry we don't serve string, are you a piece of string?'
The string replied, 'No I'm afraid not.....'

Struggling with lane I'm afraid, I may need to come back to this sorry

Don't take the long way round
I'll get you through

Another joke: what do you call a woman standing between two houses? Elaine

I can be fast or slow or somewhere in between
You’ll find me on every road you travel but I’m hiding at the end if you fly

Or something...

Would this do for lane?

My first is in liner but isn't in ship.
My second's in aircraft but isn't in trip.
My third's in adventure but isn't in dare.
My fourth is in laughter and also in care.
My whole is a way that will take you safe home,
if ever away from the city you roam.

What am I?