Find out the missing term for the given series from the given alternatives.
$AYD, BVF, DRH, ?, KGL$

Choose the correct alternative for the missing term in the series: $2, 6, 12, 20, 30, ?$

What terms will fill the blank spaces?
$Z, X, V, T, R, (...), (...)$

Choose the correct alternative to complete the series: $....op....mo.....n....\,...pnmop.....$

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

questions.

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

If all the symbols are deleted from the arrangement, which of the following will be fourth to the left of the $17^{th}$ element from the left end ?

Fill in the blank space for the given series with the correct alternative.
$1, 2, 3, 6, 9, 18, (\ldots), 54$