Fear : Threat :: Anger:?

The weights of 4 boxes are 70, 100, 20 and 40 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. 

If A + B means A is the brother of B; A - B means A is the sister of B and A x B means A is the father of B. Which of the following means that C is the son of M?

Renu walks 5 km towards south then she turns towards her left and walks 5 km and then she turns towards here right and walks 7 km, now she turns towards her right and walk 5 km and finally take a left turn and walks 4 km and stops. How far and in which direction is she from her original position?

In a row of people all facing north, Prince is 5th from the right end. Amit is 15th from the right end. Amit is exactly between Prince and Aditya. If Aditya is sixth from the left end of the line, how many people are there in the row?

Find the missing number?

Saumitra starts from his house and walks 3 km towards the north. Then he turns right and walks 2 km and then turns right and walks 5 km, then turns right and walks 2 km and then again turns right and walks 2 km. which direction is he facing now?