Number Series

What value will come in the place of the question mark $(?)$ in the following number series?
$87, 78, 71, 66, 63, ?$

In each of the following number series, what will come in place of the question mark?

$11, 15, 31, 67, 131,?$

What should come in place of question mark (?) in the following number series ?

$1 6 17 36 65 ?$

In each of the following questions, one of the terms in the number series is wrong. Find out the wrong term.

$6, 49, 305, 1545, 6196, 18603, 37218$

Choose the correct alternatives from the given ones that will complete the series.

$380, 465, 557, 656, 762, 875, ?$

What value will come in place of the question mark (?) in the number series given below.

$272640, 136320, 34080, ?, 710, 71$

What value will come in place of the question mark (?) in the number series given below?

$20, 30, ?, 67.5, 101.25, 151.875$

How many '$8$', are there in the following series each of which is followed by an even number and preceded by an odd number?
$3 8 2 5 8 3 2 8 3 2 8 2 3 8 2 8 5 6 8 7 8 4 2 8 6$

Look at this series: $36, 34, 30, 28, 24, ...$

What number should come next?

What will come in place of the question mark (?) in the following number series?

$485, 498, 524, 563, 615, ?$

Which number is wrong in the given series?

$4, 8, 16, 40, 64, 128$

In the following question, one term in the number series is wrong. Find the wrong term.

$125, 126, 124, 127,123, 129$ 

What will come in place of the question mark (?) in the following number series?

$54, 56, 61, ?, 88, 114$

In the following number series only one number is wrong. Find out the wrong number .

$6, 12, 48, 100, 384, 768, 3072$

What will come in place of the question mark (?) in the following number series?

$8, 4, 4, ?, 12, 30$

What should come in place of the question mark (?) in the following number series?
$3 7 15 ? 63 127$

What should come in place of the question mark $(?)$ in the following number series?

$748, 737, 715, 682, 638,?$

Find out the wrong number in the given series:
$2, 4, 12, 48, 240, 1442$.

A series is given with one term missing, choose the correct alternative from the given ones that will complete the series

$840, 168, 42, 14, 7, ?$

What value will come in place of the question mark (?) in the number series given below.

$9, 11, 20, 31, 51, 82, ?$