Which term comes next in the sequence: $nd, iy, dt, yo, tj, ?$

Choose the correct alternative to complete the series: $ab...be...c...ba...c$

Fill in the blank space for the given series with the correct alternative.
$71, 76, 69, 74, 67, 72, (\ldots)$

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

Which number will come next in the following series?
$2, 1, 2, 1, 3, 2, 1, 3, 4, 2, 1, 3, 4, 5, 2, 1, 3, 4, 5, 6, 2, 1, 3, 4, 5, ?$

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.