Verbal Reasoning - Mental Ability Questions

The weights of 4 boxes are 70, 50, 30 and 90 kilograms. Which of the following cannot be the total weight,in kilograms, of any combination of these boxes and in a combination a box can be used only once?

From the given alternatives, select the word which CANNOT be formed using the letters of the given word.

Travelling

A series is given, with one number missing. Choose the correct alternative from the given ones that will complete the series.
49, 64, ?, 100, 121

If A=1, CAT=60, then MAN=?

Find the missing number in the given figure?

If "-" means "plus", "x" means "divided by", "÷" means "multiply" and "+" means "substraction", then

Nurse : Ward :: Teacher : ?

A man looks at a portrait and says, " She is my Father-in-law's only grand-daughter". How is the girl in the portrait related to this man's wife?