What is two + two?

OOooh, that chip must be getting heavy!

No, it could be a clear moonlight night when the sky could be quite blue, Admittedly dark blue but still blue..

Or the irony!

But well done for getting the spellings right this time (ok, it was only two words but still a massive improvement at that).

Keep up the good work.

Cheers, T i m

From the "don't really understand the nuances but still want to be a smartarse "department.

Erm for high enough values of 2, 2+2=5

to 1 significant figure

Robin wrote on 08/04/2018 :

What really annoys me is the web sites which require your bank card number input, but they refuse to accept it as written on the card with spaces, thus - nnnn nnnn nnnn nnnn, you have to put it in thus

-nnnnnnnnnnnnnnnn. Which then makes it much more difficult to check you have put the correct digits in. Much better is where they have four boxes, able to each accept four digits.

Surely tu+tu is ballet:-)

Yep, except it's now linked to a second degree.

Once the sun has gone below the horizon the sky is still blue, maybe with a reddish tinge, but it is no longer daytime.

By convention it can be on any piece of paper, but I expect banks can make their own rules. Many years ago a farmer wrote a cheque on the side of a cow.

If the question was "what is two and two" the answer is obviously two.

That is to protect them if they do pay a cheque with technical irregularities and haven't spotted them. I think that by "whatever the payee chose" actually means whatever the payee or collecting bank MICR-encodes the cheque value.

Owain

Or they ignore blanks. Simples enough.

I think, probably deliberately, you miss the whole point of human detection!

Brian

you were the one to come up with that.

I would have said all of them could be true, assuming it's not entirely cloudy.

I'd say it could be a dodgey question as we only see light scatter and not the actual sky, we can see clouds. Later the 'sky' may well turn red as the sun sets so I'd say the sky doesn't really have a colour but it wioll appe ar blue to our eyes because of the way blue light scatters and that;s what we see if there's no clouds and the sky is clear it looks blue.

Who me, judge?

For those interested in the relevant mathematical philosophy behind such questions, you might try:

Mind you, even the definition of 1 (one) is pretty hard going :-)

:-)

#Paul