Verbal Reasoning - Mental Ability Questions

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

100, -20, 4, ? , 0.16, -0.032

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

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, ?

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

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?

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

If 23$35 = 13, 3$5 = 8 then what is the value of 4$13 = ?

Weight of Sona is four times that of Mona. Weight of Mona is 2.5 times of Hona. Weight of Hona is 1.5 times of Dhona. Weight of Dhona is 2.5 times of Rona. Who is the heaviest?