Select the word which means the same as the group of

In the following question, select the related word pair from the given alternatives. 

Seed: Tree

Four of the five among the following are similar in such a way to form a group, which one of the following doesn’t belong to the group?

Select the option that is related to the third word in the same way as the second word is related to the first word.

PARAGRAPH: AAAGHPPRR:: POLITICIAN: ?

Three of the following four letter-clusters are alike in a certain way and one is different. Pick the odd one out. 

In the given question, which one of sets of the letter when sequentially placed at the gaps in the given letter series shall complete it?

RT : QU : : VX : ?

If 98 # 86 = 120 and 59 # 95 = 90, then 79 # 98 = ?

Select the option that is related to the third term in the same way as the second term is related to the first term.