How many N's are there in the given series which are immediately followed by 3 consecutive M's? N, M, M, M, N, M, M, N, M, N, M, M, M, N, M, N, M, M, N, M, M, N, M, M, M.

The sum of 5 − 5 + 5 − 5 + 5 − 5 ..., to an odd number of terms is:

Find the missing term in the sequence: BOY, APAA, ZQCDA, ?

Write the missing numbers in the given pattern: 3, 5, 9, 17, 33, 65, ______, ______