A,B,C and D distribute some cards among themselves in a manner that A gets 1 less than B ; C gets 5 more than D ; while D gets as many as B. Who gets the least number of cards

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