Verbal Reasoning - Mental Ability Questions

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

Select the related word/letters/number from the given alternatives.
JS : QH : : VW : ?

If 6 * 9 – 4 = 58 and 3 * 9 – 7 = 34, then in the expression A * 4 – 9 = 91, what is the value of 'A'?

Ms. X's husband is the only son of Ms. Y's mother. If Ms. X's brother and Ms. Y's husband are cousins, then Ms. X is Ms. Y's ____.

Pointing towards a girl, Chetan said "She is the daughter of the only child of my grandmother". How is Chetan related to that girl?

Amar moved 20km towards east in car from his home to reach hospital. From there he turned left and moved 30km and again move 20km left to reach his school. How far is his school from hospital?

If A denotes −, C denotes ×, D denotes ÷, E denotes +, then 14C3A12E4D2=?

If a mirror is placed on the line AB, then which of the answer figures is the right image of the given figure?