Find out the odd number from the given sequence: $850, 600, 550, 500, 475, 462.5, 456.25$.

$15, 21, 39, 77, 143, (?)$

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 missing number in the series: $3, 15, 35, ?, 99, 143$.

What is the next number in the series: $1, 12, 123, 1234, ?$

Find out the odd number from the given sequence: $8, 13, 21, 32, 47, 63, 83$.