Find out the wrong term from the given series.
$25, 36, 49, 81, 121, 169, 225$

These questions are based on the following arrangement. Study it carefully and answer the questions.

$8 ,H ,\% ,3,7 ,T,A ,4 ,\# ,6 ,B,I ,@ ,R ,1 ,Q ,\star, L,E ,2 ,K ,\$ ,U ,5,9$

How many such symbols are in the above arrangement each of which is immediately followed by a number but not immediately preceded by another number?

These questions are based on the following set of numbers.
$389, 476, 635, 847, 568$
If in all the numbers the first two digits are interchanged and then the numbers are arranged in ascending order,which number will be the second?

Find out the wrong term from the given series.
$8, 14, 26, 48, 98, 194, 386$

Choose the correct alternative to complete the series: $b e . . b . . c . . b . . c c b$

Fill in the blank space for the given series with the correct alternative.
$3, 7, 15, 31, 63, (\dots)$