In the sequence K 8 A # 3 R T % E 6 M @ 5 U B 9 D & I 2 P 7, how many of the letters stand at a place in the English alphabet that is an even number?

The eleven letters and their alphabet places are K 11, A 1, R 18, T 20, E 5, M 13, U 21, B 2, D 4, I 9, P 16. The even places belong to R, T, B, D and P — five letters. The other six (K, A, E, M, U, I) sit at odd places, so 6 is the answer to the opposite question. 11 is the total number of letters, and 4 comes of overlooking B, whose place is 2.