5824, 5242, ?, 4247, 3823

Choose the missing terms out of the given alternatives : Y, B, T, G, O, ?

66, 36, 18, ?

Choose the missing terms out of the given alternatives : A, B , N, C, D, O, E, F, P, ?, ?, ?

One term in the number series is wrong. Find out the wrong term.<br> 46080, 3840, 384, 48, 24, 2, 1

Choose the missing terms out of the given alternatives.<br> PERPENDICULAR, ERPENDICULA, RPENDICUL, ?

2, 7, 27, 107, 427, ?

Choose the missing terms out of the given alternatives : ABD , DGK, HMS, MTB, SBL, ?

3, 15, ?, 63, 99, 143