With National Sibling Day today, we've gone all nostalgic. We're remembering the fights to the death and the cunning pranks, the joy and pain of having brothers and sisters.

But for twins, and their parents, there can be some very specific pains.

With a 1 in 65 chance of having twins, of course there is a fascination and curiosity about them, which naturally leads to some questions.

Not all of these questions go down well.

So the next time you find yourself talking to a twin, or their parents, cast your mind back to this list, and ask them something different instead.

1. The 'whole again' question

Twins are also individual people, capable of independent thoughts and actions

2. The 6th Sense question

'We get asked if we can tell what the other one is thinking. Of course we can! We even have E.S.P., but only on leap years.' - Reddit user

(N.b. the last bit is probably a joke.)

3. Not technically a question, but still

'"Woah! I'm seeing double!"

"You shouldn't be drinking this early/ I'd lay off the beer."' - Reddit user

4. The age question

After all, age is just a number

- Reddit user

5. "Are they natural?"

Is there such a thing as an unnatural twin?

6. "Is one a good twin and one an evil twin?"

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7. The age question, again.

"We did get a little creative with the answers after the umpteenth time of being asked 'Are they the same age?'

"My favourite answer to that one was always, 'no, we stole that one'. My husband on the other hand preferred the less politically correct, 'no, this one is 12, he has a growth deficiency.'" - Gabby, Sheffield

8. "That's you done, then!"

9. Any question when you're stressed and in a hurry

It's natural to be curious about twins, but mum might be in a hurry

10. "Which one's your favourite?"

But there are things that are nice to hear.

A lot of twins and their parents understand that people are curious

Are you a twin, or do you have twins? We'd love to hear about your experiences. Email them to YourMirror@mirror.co.uk