Continue the Sequences

1. 2, 4, 8, 16, 112, 448, 7168
   (each number is the last times the sum of its digits)
2. 78, 165, 726, 1353, ?
   (reverse the digits and add)
3. 50, 52, 55, 58, 61, 64, 67, 71, 75, 79, 83, 86
   (add to each the number of syllables in the English name)
4. 1, 2, 5, 12, 29, 70, 169
   (each number is twice the previous plus the one before that)
5. 5, 8, 12, 18, 24, 30, 36
   (sums of two consecutive prime numbers)