Find the odd number in the given sequence: $3, 5, 13, 43, 176, 891, 5353$.

Find out the odd number from the given sequence: $8, 27, 125, 212, 343$.

In each of the following questions a number series is given. After the series a number is given followed by $(a),$ $(b),$ $(c),$ $(d),$ and $(e).$ You have to complete the series starting with the number given,following the sequence of the original series and answer the questions that follow the series.

$85$	$43$	$44$	$67.5$	$137$	$345$
$125$	$(a)$	$(b)$	$(c)$	$(d)$	$(e)$

What will come in place of $(c)?$

Find the missing term in the series: $2, 20, \dots, 382, 1532$.

Find the missing number in the proportion: $6 : 5 :: 8 : ?$

Find out the wrong number in the sequence:
$40960, 10240, 2560, 640, 200, 40, 10$