$4, 10, ?, 82, 244, 730$

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

$11$	$15$	$38$	$126$
$7$	$(a)$	$(b)$	$(c)$

Which of the following numbers will come in place of $(c)$?

What is the ratio of the marks scored by $E$ in Science and that in Hindi?

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.

$582$	$574$	$601$	$537$	$662$	$446$
$204$	$(a)$	$(b)$	$(c)$	$(d)$	$(e)$

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

Find the odd number from the given sequence: $4, 12, 42, 196, 1005, 6066, 42511$.