Verbal Reasoning - Mental Ability Questions

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

employ, oyster, errors, ornate, tennis, ?

If CHANTED is coded as ZEXKQBA, then how will MAY be coded as?

If code P is denoted by 7, X by 9, M by 5, Z by 8, L by 2, T by 1, then ZLTPXM will be

At a college party 5 girls are sitting in a row. P is to the left of M and to the right of O. R is sitting to the right of N, but to the left of O. Who is sitting in the middle?

Select the related word/letters/number from the given alternatives. AIDS : VIRUS : : MALARIA : ?

Introducing a man, a woman said that, "He is the son of my mother's brother's father's son." Then how  is the woman related to the man?

Rohan walks a distance of 3 kms towards North, then turns to his left and walks for 2 kms. He again turns left and walks for 3kms. At this point he turns to his left and walks for 3 kms. How far is he from the starting point?

If "#" means "subtraction", "&" means "division", "@" means "addition" and "%" means "multiplication", then 217 & 7 # 3 @ 2 % 7 = ?