*Depends what you mean by lie?
Your CV is to sell you for that job. It’s not actually a truth document. I’ve seen some awful CVs because people insist on putting every job they’ve had on it, going back 15 years and including the job they did for 3 months. I’ve seen details of poor GCSEs when a simple “9 GCSEs achieved” would suffice.
You’ve got to make yourself look good!*
This^
If a prospective employer is asking for proof of your GCSE results over the age of say, 30, and you have higher qualifications then I would wonder the value of the role.
I may have 'ironed out the creases' on my cv in the past where I've had periods of unemployment between temp jobs i.e. stretched the beginning and end dates of the temp jobs. A pp remarked they did the same to 'cover up' a couple of gap years.
I was also given some good advice from an employment agency to sum up a period of years spend living overseas doing a mixture of paid and voluntary roles. In fact, that is the exact sentence.
My CV also doesn't need to go back to the Saturday job I had whilst I was at school because I'm now middle aged.
The jobs that I give referee details for are scrupulously true and correct so, what's the issue ?
I've had random employment agencies wanting the last five years worth of references which I have laboriously supplied then I've never heard from them again. Of if I did it was to turn my application down. I've had jobs that simply want references from the last two jobs I've had and I've got the job. Go figure.