Verbal Reasoning - Mental Ability Questions

Select the related word from the given alternatives.
Spring : Spiral :: Bangle : ?

Find the missing number?

If FRIEND is coded as HTKGPF then REVEAL will be coded as:

If "x" denotes "added to", "÷" denotes "subtracted from", "+" denotes "divided by" and "–" denotes "multiplied by", then 14 x 12 – 16 ÷ 18 = ?

Find the next term in the given series.B2, K12, T72, .......

If A = 1, AND = 19, then ANT = ?

If CROWNED is coded as APMULCB, then how will TAP be coded as?

In the following question, which one set of letters when sequentially placed at the gaps in the given letter series shall complete it?
_ yzaa _ y _ xy _ aazy _