$35, 76, 253, 488, 911, ?$

Find the next number in the series: $462, 552, 650, 756, 870, 992, ?$

$4, 12, 36, 108, ?$

Observe the following table and determine which number will come in place of $(a)$:

$264$	$136$	$72$	$40$
$488$	$(a)$	$(b)$	$(c)$

In the following number series,only one number is wrong. Find out the wrong number.
$2, 54, 300, 1220, 3674, 7350$

In the following number series,one of the numbers does not fit into the series. Mark the wrong number in the series.
$35 \quad 118 \quad 280 \quad 600 \quad 1238 \quad 2504 \quad 5036$