Unlike some parts of the country Newcastle doesn't enjoy the designation of a "royal borough"; but it still has plenty of Royal connections. This cache will take you to a variety of them.
To find it you'll need to visit each of these locations and find a numeral associated with royalty. You'll need to use your initiative to work out the number that you need!
A can be found at N54 58.865 W001 37.010
B can be found at N54° 58.849 W001° 36.086. People seem to be struggling with this one as it's been repainted many times and is a bit indistinct. Look carefully and bear in mind that this is a rare one!
C can be found at N54° 58.819 W001° 35.463
D can be found at N54° 59.011 W001° 34.908. There is no numeral here but you should have the theme by now and very basic general knowledge will give you the number.
E can be found at N54° 58.634 W001° 34.767
The total of your five numbers should be 24.
The cache can be found at N54 58.RST W001 35.UVW where:
R = C-E
S = D+E
T = A-D-E
U = D+E
V = C
W = B+D