please empty your brain below

Please don't reveal the answer here,
and no blatant hints either,
but do tell us how you get on.

(yes, this one's harder)
(use of calculator recommended)


Ooh, just done this one too.

I find it always helps to read the question carefully - I spent a fruitless few minutes looking for 4 different digits to answer the first half of this question. D'oh.

That one took me about a minute. Fun, though.

Ha!! I know my limits...and this is it! At least I got the first number puzzle!

Worked it out. You've gotta love Excel.











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