Verbal Reasoning - Mental Ability Questions

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

If 17 + 17 = 2895 18 + 18 = 3245 19 + 19 = 3615 then 23 + 23 = ?

Pointing to a man in a photograph, Gunjan said, " His mother's only daughter is my mother." How is Ganjan related to that man?

In a certain code language, “MAGNET” is written as “WHQJDP”. How is “FRAUDS” written in that code language?

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

If A = 1, E = 5, then HEAR = ?

Select the related number from the given alternatives.
77 : 84 :: 121 : ?

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