Verbal Reasoning - Mental Ability Questions

If 70*10 = -7, 50*5 = -10 and 10*5 = -2, then find the value of 80*1 = ?

If MOMENTUM is coded as EMOMNTUM , then MAGNETIC will be coded as?

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?

Select the related word/letters/number from the given alternatives.
17: 71 :: 35: ?

If A = 1, E = 5, then HEAR = ?

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, ?

In the following question, select the related number from the given alternatives.
65 : 82 : : 145 : ?

Select the related word/letters/number from the given alternatives.
Nephrology : Kidney : : Ichthyology : ?