# What colour is my friend's house?

One of my friends, Anne, is staying in London. She had told me which street she is in but, to my understanding, there are a huge number of houses in the same street. Fortunately, every house in this street has a colour and no two share the same colour. She told me that:

rdo eyw gn? iov t, 13×r+13×s+13×w+13×g

What colour is her house?

Hint:

• Please don't change the puzzle after you post it. Oct 23, 2020 at 5:33
• So can we have a hint
– PDT
Oct 23, 2020 at 19:06

Deepthinker101 has gotten part way but I think the colour of the house is

GREY

First part

As Deepthinker101 pointed out the first sequence of letters, when taken in pairs, gives rd, oe, yw, gn, ?, io, vt which represent the first/last letter pairs of the colours of the rainbow and the missing set is be representing the colour BLUE

Second part

If we take rot13 of the given letters RSWG, we get EFJT.
This does not mean much on its own but if we add the alphabetical positions EFJT=(5,6,10,20) to the letter positions of the word BLUE = (2,12,21,5) we get (7,18,31,25), or modulo 26, (7,18,5,25) which encodes the letters GREY

• Dammit should not have fallen asleep.
– PDT
Oct 24, 2020 at 2:36
• Haha I'm so sorry I edited this question early in the morning at 6:30 AM! Oct 24, 2020 at 5:10