Answer:
According to the tiles I have just pulled out of my Scrabble game they are scored as followed:
A:1, B:3, C:3, D:2, E:1, F:4, G:2, H:4, I:1, J:8, K:5, L:1, M:3, N:1, O:1, P:3, Q:10, R:1, S:1, T:1, U:1, V:4, W:4, X:8, Y:4, Z:10, Blank:0
The rule book does not have a list of values, I assume because the values are listed on the lower right-hand side of the tile. I have experienced in some house rules that the blank tiles are scored as one or two points as well. But according to the tile itself it should have a score of 0.