Ramesh is richer than Satish but Jaya is less wealthy than Ramesh. Ram is less rich than Jaya but richer than Satish but he is not as rich as Ramesh. Ramesh is less wealthy than Naveen. Who is the richest of them?

Direction: Which one set of letters when sequentially placed at the gaps in the given letter series shall complete it.
a_b_ba_b_ ba

A is 13th from top, B is 18th from bottom. When A and B change their position then A becomes 21th from top. What is the new position of B from bottom? 

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.
24:56

_bdd_ _d_ _ebd_e_dd

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

How many such digits are there in the number ‘018779745234’ each of which is as far away from the beginning of the number as they have when the digits are arranged in descending order within the number? 

Choose the odd pair group in following options?