How many letters have line symmetry?

Answer 1

Letters with line symmetry

A, B, C, D, E, H, I, K, M, O, T, U, V, W, X, Y

L, Q - if you use a 45 degree line and a font with the same height and width, also is symmetrical.

Letters without line symmetry

F, G, J, N, P, R, S, Z

Answer 2

13