Verbal Reasoning - Mental Ability Questions

A series is given with one term missing. Choose the correct alternative from the given ones that will complete the series.

13,25,49,85, ?

If 18α1 = 34, 19α2 = 34 and 18α3 = 30, then find the value of 18α8 = ?

If 29$14 = 6, 37$25 = 3 then what is the value of 84$62 = ?

If 15#2 = 26, 11#3 = 16 and 10#9 = 2, then find the value of 11#4 = ?

If 4!4 = 80, 3!8 = 110 and 6!2 = 80, then find the value of 7!9 = ?

If 8*2 = 3, 14*18 = -2 and 18*2 = 8, then find the value of 14*10 = ?

Select the related word/letters/number from the given alternatives. Coins : Mint :: Bricks : ?

Which set of letters when sequentially placed at the gaps in the given letter series shall complete it?
J_J_L_KL_JK_MN