Find out the related number to complete the equation. If 175 = 42 and 325 = 16, 485 is equivalent to what?

In the following questions, select the term from the given options, which cannot be formed with the letter of the given word.
POWERMACHINE

Among T, M, S, J and U each having different heights. J is shorter only than T.M is not as tall as U and U is shorter than S. Who among them is the shortest?

The different positions of the same dice are shown. How many dots will be on the top in four dots are at the bottom?

The total age of a mother and her son is 60 years. The difference between their ages is 30 years. Find out the age of the mother.

Three of the following four words are alike in a certain way and one is different. Pick the odd word out.

Select the word-pair in which the two words are related in the same way as are the two words in the following word-pair.
Fan: Electricity 

Select the number-pair in which the two numbers are related in the same way as are the two numbers of the following number-pair.
7:729