Find the wrong number in the given series from the given alternatives -
14, 39, 84, 155, 260

Direction : In the following question, select the correct answer from the given alternatives.
2, 8, 16, 128, ?

A series is given, with one term missing. Choose the correct alternative from the given options that will complete the series.
51    (?)    57      65      81    

Find the missing number in the following series:
43, 172, 86, 344, ?

The series given below contains a sequence of numbers. Identify the incorrect combination.
2, 15, 41, 80, 134

The series given below contains a sequence of numbers. Identify the incorrect combination.
5, 6, 7, 8, 10, 11, 13, 15, 19

The series given below contains a sequence of numbers. Identify the incorrect combination.
1, 8, 3, 6, 5, 4, 6

The series given below contains a sequence of numbers. Ident ifythe incorrect combination.
2, 15, 41, 80, 134