you may have seen it before but kept me amused for all of 148 nanoseconds.

(I wold have thought remembering the actual number would have been easier than remembering the realtionship between them but hey, it is not my puzzle.)

A man wanted to get into his work building, but he had forgotten his
code. However, he did remember five clues. These are what those clues were:

The fifth number plus the third number equals fourteen.
The fourth number is one more than the second number.
The first number is one less than twice the second number.
The second number plus the third number equals ten.
The sum of all five numbers is 30.'

What were the five numbers and in what order?

he remembered all those clues but forgot a 5 digit number, what a numpty

easy

wait until someone else walks in, then either watch them put the code in, or just follow them through?

That took me an annoyingly long time.
Although it does help if you write the question down correctly in the first place!

74658. What did I win?

had to work it out in excel, but got there in the end. :-)

74658 Agreed - took me over a minute!

I love algebra - its so theraputic...

oh my god.. did i just say that out loud!

74658 but i did have to write it down to work it out.