Out of four words, three are same in certain way, while the rest one is different. Find out the different one.

In the following four numbers, three are same in certain way, while the rest one is different. Find out the different one.

65-5×7+(8×4-2-1) = ?

Today is Monday. After 100 days what day it will be

A and B are two cities. A man travels from A to B at a speed of 10 km/hr. and returns back at the speed of 30 km/hr. Find his average speed for whole journey

Meena, Arun and Gopu divide a sum of Rs. 6,000 in such a way that Arun gets 1/2 of what Meena gets and Gopu gets 3/4 of what Arun gets. Then what is Arun's share