Verbal Reasoning - Mental Ability Questions

Pointing to a boy in a photograph, Neena said, "He is the son of my grandmother's only daughter". How is Neena related to the boy?

If A = 26 and X-RAY = 40, then WHAT = ?

If 4 x 9 x 3 = 4 and 5 x 3 x 1 = 3, then
9 x 9 x 7 = ?

If HUMBLED is coded as JWODNGF, then how will WAX be coded as?

In a row of 15 children, when Raju was shifted three places towards right, he became 8th from the right end. What was his earlier position from the left end of the row?

In a certain code language, "TIRED" is written as "56" and "BRAIN" is written as "44". How is "LAZY" written in that code language?

Some equations have been solved on the basis of a certain pattern. Find the correct answer for the unsolved equation on that basis:

7*4*3 = 437
8*6*4=648
4*3*6=?

Select the related word/letters/number from the given alternatives.
DB: IC:: YE: ?