Choose the correct alternative for the missing term in the series: $Z, U, Q, ?, L$

Study carefully the following arrangement of letters, digits and symbols to answer these

questions.

$M, 7 ,\&, 8, L ,P ,@ ,Q ,N ,\beta ,T ,Y ,3 ,2 ,= ,E ,\$ ,4 ,9 ,\#, G ,H ,5$

$'78'$ is to $'P?6'$ and $'?N'$ is to $'T32'$ in the same way as $2 E'$ is to $\ldots \ldots \ldots . . .$ in the arrangement.

What will be the next term in $BKS, DJT, FIU, HHV, (\ldots)$?

Find out the wrong term from the given series.
$125, 126, 124, 127, 123, 129$

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

Second and third digits of each number given below are interchanged. Then,the $1st$ and the last digits of each new number thus formed are interchanged. Which of the following numbers then will be the highest number among the five?
$273, 372, 438, 184, 526$